Programming & IT Tricks . Theme images by MichaelJay. Powered by Blogger.

Copyright

Facebook

Post Top Ad

Search This Blog

Post Top Ad

Responsive Ads Here

Archive

Post Top Ad

Contact


Editors Picks

Follow us

Post Top Ad

Fashion

Music

News

Sports

Food

Technology

Featured

Videos

Fashion

Technology

Fashion

Label

Translate

About

Translate

Sponsor

test

Weekly

Comments

Recent

Connect With us

Over 600,000+ Readers Get fresh content from FastBlog

About

Tuesday, February 6, 2018

How Digital Technology is Reinventing “Personal Growth”



Aren’t you worried about the “digital generation”?
I am often asked this question and it happened again last week. The person asking — a male colleague in his mid-40s — was referring to what he saw as the negative effects of the instant and effortless access to information characteristic of an Internet Age.
His argument?
In a connected world where information is so easily available, the younger generation no longer have the right incentives to really “learn” anything. They don’t have (or even want) “ready knowledge”. This will inevitably have a negative impact on their analytical skills and, in turn, will kill creativity and (ultimately) thwart innovation.
In a word, my answer to this type of question is “No”.
I am not worried about the “digital generation” and remain cautiously optimistic about the future.
However, I do believe that we need to adopt a new understanding of “personal growth” in a digital age. Over the last few weeks, I have been thinking a lot about what this entails.
Here are two thoughts:
  • First, I think we should stop talking about “generations”. Such “generation-talk” obscures the new freedoms that now exist for everyone in a digital age.
  • And second, regardless of age, we need to ask: what kind of mindset (and related skillset) is necessary to flourish in a world where “knowledge” is readily available? For me, this means seeking out and embracing the opportunities for mutual learning that are created by digital technologies.

A “Post-Generation” World

We are used to living in a stable world of clearly demarcated generations.
We are all familiar with the labels: The Lost Generation, The GI Generation, The Silent Generation, Baby Boomers, Generation X, Millennials (Generation Y), Generation Z.
Each generation is associated with a distinct historical experience (WWI, WWII, the post-war boom, etc.) and a particular set of attitudes and values.
And, within each generation, there were clearly pre-defined career paths and other opportunities. People grew up in a certain way, received a certain type of education, found a certain type of job and, eventually, settled on a certain type of life.
And when you passed 45?
Well, there weren’t many options left. New opportunities were only available to the “next” (and younger generation) that were in touch with the new historical experience, the new technologies and values of a new world.
But, things have gradually changed. And here I agree with Gary Vaynerchuk:
Now, when you are in your 40s, there are still unprecedented opportunities for working and learning, and for changing your life.
The main reason for this is “technology”.
Digital technologies have created a more open, fluid and “flatter” world where generations no longer matter, at least if you embrace the right mindset and develop the right skills.

Why Digital Technologies Change Everything

Of course, there are shortcomings caused by the global proliferation of digital technologies. Such risks include a lack of privacy, accessibility to personal information and the easy dissemination of “fake news”.
But, in general the opportunities outweigh the challenges. Digital technologies offer everyone the possibility of connecting to a truly global community. This reality has the potential to open up new perspectives, jobs, friendships, learning opportunities, etc.
Digital technologies create a flatter and de-centralized world where empowering and experimentation prevail over controlling and planning. Everybody can now be an “entrepreneur”, a “creator” or an “artist” without first being accepted and acknowledged by any centralized authority.
Think of the new opportunities provided by YouTube, Medium and other content platforms. Anyone with a good idea and the drive and talent to implement their idea can reach a global audience or market. One of the most important benefits of digital technology is the possibility of being globally connected.

The Key to Personal Growth (and Success) in a Networked World

How then do we benefit from the unprecedented opportunities of a digital age?
A lot has been written about personal growth and development.
Suggestions on how to improve yourself are everywhere. You should wake up early, read a book every week (or even better every day), work out, eat healthy, take cold showers, etc.
Certainly, there might be truth to all of these things for some people. However, one thing you don’t hear about very often is that you should be more open to the experience of “mutual learning”. I really believe that this is the key to personal growth and success these days.
Young, middle aged and older people that embrace the digital world should not look at each other as being part of a generation. Particularly, when they all share the same mindset. Instead, they are part of a globally connected community in which every member is both a teacher and a student. You see this at technology meetups, hackathons and innovation workshops.
If I just look at my own experience as a professor, I can see this transformation. I used to consider myself as a teacher, inspirer, motivator of the younger generation. My job was to prepare them for the new world, help them build a career.
But this changed recently. As I have mentioned before, I view myself more now as an influencer or, perhaps even better, a collaborator.
The world is changing so fast these days. The exponential growth of technology cannot be ignored. There are so many challenges and new opportunities. And what I found is that teaching has become more and more like a dialogue, a two-way conversation so to speak, where a process of mutual learning happens during every “lecture”.
The last few years, students have made me aware of new apps, new platforms, new values, new perspectives and a new way of communicating that indeed opened many different doors and helped me engage in an on-going process of “learning, un-learning and re-learning” (to use an expression from one of my former students).
There is no need to “settle” anymore. In fact, “settling” may come with certain risks as the speed of technological change means that the future is more uncertain than ever before.

Welcome to the World of Mutual Learning

The digital age has created and continues to create multiple new opportunities.
Thinking in terms of generations is over. Instead, it is all about adopting the right mindset.
In order to grow and succeed in a digital age, you need to capture/embrace the opportunities for mutual learning and self-improvement necessary for building the future together.

Monday, February 5, 2018

Hyperloop Interface. Around the World in a Minute.






An idea emerged back in the 20th century about a brand new mode of transport involving a magnetic pad to reduce friction. In 2012, when California was all about the California High-Speed Rail project, Elon Musk suggested Hyperloop. For several years now, the world’s best engineers have been working toward a technological breakthrough. The future is a tantalizing secret and we’re constantly trying to predict and infer what will happen. Hyperloop One just disclosed their own vision of the passenger app interface, and you can easily compare the work they did with what we imagined to be the perfect Hyperloop app: https://techcrunch.com/2018/01/08/hyperloop-one-and-here-built-a-hyperloop-passenger-app/
Everything changes at lightning speed, and we can’t always keep up with the latest news. In the meantime, innovations encourage us to think up creative solutions that have everyday applications using smartphones, tablets, MacBooks, etc. Our company has a lab for generating experimental interfaces where we’re always asking what kinds of challenges we’ll get to see in a year or two, like:
  • An AR app for studying anatomy which shows you someone’s internal organs when you direct the camera view at them.
  • The messenger of the future which will boast additional functions like micro crowdfunding, dating options, and a bunch of other cool stuff.
  • A news service which uses AI to predict newsworthy events a spine-tingling 15 minutes before they actually occur.
In this article, we want to talk about creating an app for Hyperloop. After all, they call it the 5th transport mode, with its own infrastructure. So its interface will be totally unique, with its own functionality and usability.
Obviously, what interests us most is which cities are included in Hyperloop’s network, and how long travel will take.





Route Selection

A map of the US emphasizing key cities on Hyperloop’s map and indications of travel time (in minutes, based on speeds of 1080 km/hr). The user selects two cities on different coasts. The interface shows which segments make up the route and calculates general travel time (taking into account stops along the way). We see the route screen, which presents the points of departure and arrival, travel time, cost, and a “Choose Seats” button.
If the trip takes 12 minutes, what kind of service can you offer to your passenger? A meal? Unlikely. Movies or music? We hope there’ll be wifi on board, which is more than enough to meet that demand. What about the possibility of chatting with a new friend? Link to your Facebook profile and the app will analyze your interests and select a spot beside compatible traveling companions.



Let Your Hobbies Choose Your Seat

Sync up your Facebook account and the app filters available seats next to people who share your interests, whether they be web design, subway construction, or volunteer work in Africa. The user can select one or several interests. The app will show your neighbor’s photo and a brief bio, something like: “Okay, we’ll seat you next to Amy Richards, she’s an IT security specialist and has been involved in charity work in Namibia for the past five years.”
What’s the best thing you can inherit from good old airline companies and railroads? Democracy! Hyperloop will suggest several classes of service and possibly even a free trip to go with your submersion into a diverting virtual reality which features ads.



Selecting the Right Class of Service

Standard: a carriage map with densely packed seats. Here you’ll see the seat cost and the number of pre-selected seats. Swiping left takes you to the Business class map, with fewer, comfier seats and more leg room. Suite: this gets you a full carriage including a conference table and opulent armchairs or sofas. Auto: this includes the option to bring your ride along for the ride.
So, I’m right in the middle of my 40-minute journey from Washington to Seattle. Where am I? How fast am I going? What’s going on around me? The app has to be totally able to answer such questions, especially when you’re stuck in an enclosed space in a vacuum.



Useful Info Along the Journey

During the trip you can check out a map with your designated route and trip trajectory. You’ll also see all the information relevant to you: speed, time en route, expected stops, and even points of interest along your journey.
How can a company make Hyperloop more accessible for ordinary people? By lowering costs at the expense of advertisers, for example. But how to tempt passengers into communicating with the brand? Easy: brand promotion should be available to all the passengers on board.





Lightning Speed Delivery

Every station has a special carriage with compartments. Put together all your shipment info in your Hyperloop app. Approach the carriage and use your phone to open the compartment, then insert your package. The mail carrier will take off on schedule and will soon arrive at its destination. The recipient will get an alert and receipt location beforehand. All that’s left to do is to go to the mail carriage and, using a phone, open up the right compartment. Fast and easy.

Conclusion

Cutting-edge technology expands our horizons and inspires us to think about how we’ll benefit from it throughout the course of an ordinary day. These intriguing concepts have been developed by our company, Cuberto, and we totally get that sooner or later, all of this will become reality. We grow and evolve with the times. It’s not just technology that’s transforming, but also our attitudes to everyday objects. As a product team, it’s our job to establish the most convenient conditions for the use of these technologies.

Advice From A 19 Year Old Girl & Software Developer


Don’t worry, this won’t be one of the I wake up at 4AM every morning and go for a 20km run… -‘inspirational’ posts, that make people feel like they need to be some kind of super-human in order to be a good developer.
Some people might know me as ‘the girl that never does anything else but coding’ from Instagram (@theavocoder), but I’ve never really shared what I actually do on a normal day, and have done in order to become a software developer!

How I got into coding

I’m Lydia, a 19 year old girl living in Stockholm, and I am a JavaScript (React) developer! I’m very active on social media, and try to motivate more people to join the tech world by showing what my life is like in this community.
I started coding when I was 15 years old. I had a booming health & lifestyle blog on Tumblr and gained tens of thousands of followers in no-time. This is when I started creating my own responsive layouts with the regular HTML, CSS and jQuery, as I didn’t like the themes that I could buy, so I decided to just try it myself! From there on, I kept on improving my skills, gained more knowledge, and my interest in developing grew. However, I had no idea that this was already considered coding and that I could do this for a living, I simply enjoyed creating my own designs from scratch and seeing that people loved the layouts that I built and were willing to pay me for it!
I went to high school until I was 18, and absolutely hated it. I felt like I was wasting so much time on subjects that could in no way improve my future (looking at you, ancient Greek and Latin!). Nonetheless, I worked extremely hard for my diploma, worked on many personal side-projects, and have always been busy tutoring and supporting people! People have described me as the most hardworking, yet most relaxed person they’ve ever met, and I think that describes my mindset perfectly. But we’ll get back to that later!
After I finished high school, I decided to not go to university. This was a very scary step for me, as I was kind of brainwashed into thinking that that’s the only way to have a successful future: everyone around me went to the best universities! I spent so much time trying to get the best grades in high school to eventually go to a good university, did I really just waste so many years of my life for nothing? Yup, pretty much, but I don’t at all regret it! Most of the people around me didn’t understand and thought I was making a big mistake, but the small amount of people that understood and supported me really motivated me.
I’ve always been very independent: I moved to another country by myself when I was 18, travelled a lot on my own during my teens, and have always been busy doing anything to improve my future. I’ve never felt pressured into doing stuff because society wanted me to, I’ve always done my own thing. After I decided to not go to university, but give my 110% to programming instead, I went to a coding bootcamp for 3 months in Tampa Bay, Florida. I didn’t have to do this, but it definitely helped me to get some structure and be surrounded by other people who enjoyed programming as well, as I didn’t have that before. I coded intensively, was constantly out of my comfort-zone (which I love), put a lot of effort into my personal projects to improve my coding skills, and learned so many new technologies.
Guess what? Even during the 3 months, an insane amount of recruiters reached out to me asking if I could work for them. It was after I created a LinkedIn profile and could show the work I put so much effort into. As a 19-year-old girl with no work experience whatsoever, it was kind of overwhelming. I didn’t understand: did they not read my LinkedIn profile? I didn’t go to university or anything, why would so many companies want me?
Because you don’t learn how to code at school. You learn how to code by writing programs in it. Most companies don’t care if you have a nice paper saying that you studied programming at college: people care that you can show that your coding skills are good, and that you love to code.
Don’t get me wrong. If you like life at college, or simply need some more structure in your life, then it’s definitely a good decision to go there. However, don’t feel pressured. The programming community can be harsh: they hate on each other because of the language they program in, they make it seem like it’s normal to get 2 hours of sleep because you have to code all night long, and that eating junk-food and sitting all day is simply the way it is. It’s absolutely not the case.

My daily life (outside of work)

After the bootcamp ended, I flew back to Stockholm. I was extremely excited to start this new chapter in my life, and couldn’t wait to keep on growing. So what do I do nowadays on a regular day?
I wake up and try to stretch. This sounds like the typical ‘inspirational’ post I talked about earlier (they’re like everywhere in LinkedIn, it’s driving me crazy!), but it’s extremely important. You sit for hours and hours, and your body definitely suffers if you don’t take care of it. It also really wakes you up, as your heart rate increases and your brain gets more oxygen.
I try to watch online coding courses for at least 2 hours per day. I love watching online courses, because I always learn new things and get inspired by seeing the instructor writing the code with such ease. I try to give my own twist to it by working on a similar project on the side, just slightly different, so I’m not simply copying what the instructor is doing. Also, it’s perfect when you just don’t want to get out of bed and still feel like you’ve been productive ;)
I try to work on my personal projects for at least 4 hours. They make me feel super uncomfortable. I always try to use languages or techniques I’ve never used before, so I get more experience with them. And let’s be honest, it can be horrible! I’m not going to lie and say that if you work hard, you’ll get there (which you will but that’s not the point), but I also really want to emphasise on the fact that learning something new can be an emotional rollercoaster. You will feel demotivated, feel like you’ll never understand it, and really question your coding skills. If you do, congratulations! You’re a normal human being! Feeling these emotions isn’t the important part here: what you do about it is the most important part. Research it, reach out to people, write your own Stack Overflow questions (and be a hero to many people out there), and simply keep on trying until you find a solution. And if you don’t, that’s completely fine. After some time, you will probably look back at it and think “how couldn’t I get this back then?!”.
I try to read at least 2 articles. I really like seeing things from a different perspective. The articles can be about anything: how to solve a certain coding problem, why JavaScript sucks sometimes, or what the coolest new technologies are. It’s important to not get stuck in a certain mindset!
I try to solve at least 5 CodeWars Kata. CodeWars is your best friend when you just get into coding, but also when you’ve been coding for many decades! The solutions to the problems they give you are often very useful, as you will learn to improve your syntax a lot by just scrolling through the solutions that other people gave. And another big plus: when you go for your coding interview, they often give you questions that are very similar to the ones on CodeWars!
I try to not eat junk-food. Eating nutritious food keeps me very alert and, most of all, happy! I feel so much more energized and motivated when I’ve had a very healthy breakfast and lunch, which definitely improves my coding capabilities. Don’t go for fast and easy, but think long term: the better your body, the better your mind, the better your code!
Plus: you can still stretch/meditate while coding!
Did you notice something? I kept on saying “I try”. Because I’m not going to force myself to do things when I just can’t do them. I don’t want to give myself a bad feeling when I haven’t worked on my personal projects, or when I’ve eaten junk-food. Giving my 110% is my focus, but I’m human: on some days I just don’t want to code, feel tired, and just want to watch Netflix all day. And that’s completely fine! Find the right balance between relaxation and hard work. This comes back to the comments people make about me being the most hardworking yet relaxed person they’ve ever met: but it’s not easy to have this mindset!
It took me a long time to not feel bad when I hadn’t worked all day long. Especially after joining Instagram: I constantly saw posts of people coding so much that I felt like I also had to do that and simply didn’t have time to take a day off. But once I started to make relaxation an important part of my life, everything got better. I felt so much happier and I was much more motivated to work a lot.

Conclusion

By writing this article, I hope to inspire some people to also get involved in the tech world, and that it’s really not as scary as it seems. Programming isn’t only for the super intelligent super-humans like they portray in movies. Programming is for anyone who loves to create, who loves to get out of their comfort zone, and for anyone who loves to improve themselves!
To conclude, my final advice:
  • You really don’t have to go to college, as long as you can really push yourself and show your passion for coding!
  • Always give your 110% whenever you can, and show the world what you’re capable of by getting your name out there. However, always prioritize your health. Sleep is very important!
  • It is completely normal to feel uncomfortable and to think that you’re really bad at coding, don’t let this bring you down. Everyone thinks this from time to time.
  • Always remind yourself of how far you’ve come already. It’s really easy to forget how much you’ve improved, but just compare yourself now to a month ago! I can assure you it’s a lot more than you’d think.
  • Don’t let other people make you feel like the language you program in is a bad language. It’s literally not, and it’s most likely very necessary and useful!
Source :Lydia Hallie

Sunday, February 4, 2018

Augmented Reality(AR) And Virtual Reality(VR): What Are The Differences?


Many impossibilities of yesterday are possible today. Today’s impossibilities, centered around Augmented Reality (AR) and Virtual Reality (VR) will soon become possible. You see, the impossibility isn’t whether they work, rather it’s about taking them mainstream. So the real question is, how good does it have to be before the mainstream embraces it into their daily lives?

What is Augmented Reality?

Augmented reality enhances our experience, making it more meaningful through our ability to interact with computer-generated enhancements layered over our reality. Simply put, computer generated graphics are used to augment your environment. Picture your wall turning into a big computer-generated screen or your coffee table turning into a monopoly board. In this way, the technology uses your real-life environment as its platform and builds on top of it.
AR technology is quickly turning mainstream. Pokémon Go is an example of AR being used in a very mainstream way, as are the filters in Snapchat. It is also being used to display score overlays on telecasted sports games and pop out photos, 3D emails, or text messages on smartphones. The tech industry leaders are also using AR to do amazing things with motion activated commands and holograms.

What is Virtual Reality?

In virtual reality, technology is leveraged to build a virtual world user can interact with. VR is usually made possible by wearing a VR helmet or goggles a lot like the Oculus Rift. With VR you are no longer in your world or environment, you are entirely teleported elsewhere. It immerses the user primarily by stimulating their vision and hearing, by making them believe they are living the simulated reality firsthand.
A virtual reality headset typically uses one or two screens that have to be held close to your face and viewed through lenses. It then employs various sensors to track the user’s head and potentially their body as they move through space. With this information, it renders the right images to create an illusion that the user is navigating a completely foreign environment.

How are Augmented Reality and Virtual Reality similar?

Augmented and virtual realities both leverage a lot of the same types of technology, and they both exist to serve the customer with an enhanced experience. Both typically use head tracking to follow the user’s movements. However, AR generally requires less processing power compared to VR as it doesn’t need to render a completely new environment. Additionally, both augmented and virtual realities have great potential in changing the landscape of many practiced fields like medicine by making things like remote surgeries a real possibility. These technologies have already been used to treat and heal different psychological conditions.

How do Augmented and Virtual Realities Differ?

Augmented reality enhances our experience by layering on virtual components like images and graphics as a new interactive layer over the real world. On the other hand, virtual reality builds its own computer-generated reality. And virtual reality is usually delivered to the user through a handheld or head-mounted controller. This equipment connects the user to the virtual reality, allowing them to control and navigate their actions in an environment meant to simulate the real world. While augmented reality is being used a lot more in mobile devices like our laptops, tablets, and smartphones to influence how the real world and digital world interact.

Augmented Reality Vs. Virtual Reality

Till today, augmented reality has found more success in the consumer space compared to virtual reality. There have been several applications with AR, along with video game and hardware devices such as the Google Glass. When it comes to VR, the technology is just stepping up to the plate. It’s still far away from being this great thing for social encounters in a virtual world, but it is getting there with the rise of the Oculus Rift.
There’s place for both AR and VR in the marketplace. However, AR will find commercial success a lot more easily since it doesn’t completely take people out of the real world. Also, it doesn’t have to be virtual reality vs. augmented reality. They don’t always operate independently of each other. In fact, they are often fused together to generate an even more immersive experience. But for now, AR is powering the next batch of magic tricks heading to your phone.

Conclusion:

Virtual reality and Augmented reality are inverse reflections of one in another, regarding what each technology wants to accomplish. Augmented reality overlays virtual elements in the real world, while virtual reality digitally recreates a real-life setting.
Both Virtual Reality and Augmented Reality are going to become mainstream soon. Things are already changing, and before we know it, we are going to be living in a world more virtual, than real.

Unlocking Web Audio — the smarter way


The Web Audio API provides a powerful and versatile system for controlling audio on the Web, allowing developers to choose audio sources, add effects to audio, create audio visualizations, apply spatial effects (such as panning) and much more.
It can be used for developing sophisticated web-based games or interactive applications which include the capabilities of modern game audio engines as well as some of the mixing, processing, and filtering tasks found in modern desktop audio production applications; and it can be a very good complement to the more advanced graphics features offered by WebGL.
All this sounds awesome (pun intended), although, on iOS devices there is a slight caveat: the Web Audio API requires sounds to be triggered from an explicit user action, such as a tap, before any sound can be played on a web page.
The reason why iOS devices impose this user-gesture restriction is because they want to preserve a pleasant user experience by preventing ads or videos from playing sounds before user actually interacts with the content, and also to save battery life since playing audio does require additional processing power.
Within Web Audio API everything happens inside of an AudioContext, an audio-processing graph built from audio nodes linked together, which controls both the creation of the nodes it contains and the execution of the audio processing, or decoding.
On iOS devices this context is initially suspended (“locked”) and in order to enable sounds on a web page we need to get it out of the suspended state, or “unlock” it, within first user interaction.
Earlier solution to this issue proposed creating an empty sound on the fly and playing it back once user interacts with the page.
The reason why this approach works is because playing an audio source within a locked audio context sets it into running state before actually playing the audio.
Let’s start putting some code together in order to try and come up with a simpler solution. First we need to instantiate an audio context to be able to do any audio manipulation:
Then right after we create an audio context we should check its state property.
If the state is equal to suspended we might be dealing with an iOS device:
Some desktop browsers like Firefox Quantum leave an audio context in suspended state right after instantiating it, so in order to make sure we are really dealing with an iOS device we need to check if touch events are available as well:
If the audio context is suspended we can call its resume() method to set it into running state:
Now, you might be thinking “well, it can’t be this simple…”

…and you are right 😔. This code needs to be run within a user interaction in order to actually work. So we are going to wrap it up in a function and add that function as a touch event listener.
In order to try and unlock audio context as soon as possible we will run our code on the first touchstart event that occurs anywhere on the page:
One issue with this approach is that with some iOS versions trying to unlock Web Audio on touchstart event doesn’t work.
touchstart could be the beginning of a scroll gesture, and playing audio during this gesture could be completely undesirable from a user's perspective.
So to take this into account we also need to try to unlock Web Audio from within touchend event as well as on the initial touchstart event:
Once the audio context has been unlocked we would want to remove touch event listeners since we don’t need them anymore. For this we need to figure out when the audio context was actually unlocked.
Technique used in an earlier solution to determine this was to query the playbackState attribute of the sound, that was created on the fly, shortly after starting its playback. Doing it directly after wouldn’t work since starting a sound is an asynchronous action so querying had to be done from a timeout callback.
Then, if the sound was in PLAYING_STATE or FINISHED_STATE, you could assume that the context was unlocked.
This approach might still work in some cases but it is far from simple and introduces a compatibility issue since playbackState is no longer supported by the official Web Audio API specification.
One neat thing is that resume method of the audio context actually returns a Promise object. When that promise resolves we are certain that audio context has been unlocked and that we can remove touch event listeners:
And there you go: a bulletproof way of unlocking Web Audio on iOS devices!
Let’s make a few more adjustments to make this piece of code reusable. First let’s wrap it all in a function and put it in a try...catch block in order to prevent any unexpected errors from breaking our entire app:
And finally let’s provide some useful info like if there was an actual need to unlock Web Audio or if an error occurred and what was the reason for it. We can do this by wrapping everything inside of a Promise and returning it from our function:
Now you can use this function anywhere in your code like this:

Friday, February 2, 2018

The Future of Light




The body clock is influenced by changes in light throughout the day. Photo by Den Heslop.
Edison’s commercialization of the electric light bulb quite literally changed the world. His technology helped enable the power grid, modern transportation, and ultimately the lifestyles we enjoy today. Lighting improved gradually over the last century until the recent mass adoption of LEDs.
As LED lighting goes mainstream, we face new challenges. You can no longer buy a 60 Watt bulb. Instead, you have to dive deep on CCT, CRI, lumens, and other jargon. There is an increased awareness of the risks of blue light coupled with unwarranted demonization of the new technology. The lighting industry as a whole faces stagnation.
How do we get out of this mess, and where do we go from here?

The LED Revolution

Red and green LEDs have been around for about 50 years, mostly confined to use as indicator lights in electronics. In the early 90s, three Japanese researchers at Nagoya University and Nichia Chemical created the first blue light emitting diode (LED) from gallium nitride (GaN).

One of the blue LED inventors, Shuji Nakamura. Photo by Ladislav Markuš.

The discovery by Nobel recipients Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura was significant because blue light can be converted to white light by means of a phosphor material. The phosphor material, for example yttrium aluminium garnet (YAG), is generally yellow in color and sits atop the LED die material.
In the mid-2000s, companies started packaging blue LEDs and phosphors into bulbs and other light sources. These early products were expensive ($20-$50 for a bulb) and largely had problems with color consistency, heat, and lifetime.
Today, you can buy an LED bulb for about $1.50.
The cost of components dropped, along with increases in performance. According to Haitz’s law, the cost per lumen (an amount of emitted light) decreases by a factor of 10 each decade.
Today, you can buy an LED bulb for about $1.50. That bulb has better color performance than its swirly compact fluorescent equivalent, and lasts 10,000–20,000 hours. Other LED sources can last significantly longer (50,000–100,000 hours). By contrast, an incandescent bulb may last 1,000–2,000 hours.
LED lamps are not far off in price from incandescent lamps at the point of sale. But their long lifetimes and low power usage mean you can save significantly more. Over the life of a cheap LED bulb, you will pay about $12, including the purchase price and energy. Five 60 Watt incandescent bulbs would cost about $78 over the same period of time. And don’t forget that you have to change the bulb five times instead of just once.


You probably wouldn’t know it, but this trendy Edison-style bulb is LED. Photo by IKEA.

Efforts have been made to phase out the sale of incandescent bulbs in numerous countries. Even though legislation has not passed in some places, the lighting industry has largely moved on to LED anyway. IKEA became the first large retailer to sell only LED lighting in 2015, and others are making similar moves.
The efforts are working. According to the U.S. Department of Energy, LED market penetration was 12.6% in 2016. That’s up from just 3% in 2014.

Massive Choice, Massive Confusion

All is not well. LED had its moment of differentiation, but now it’s largely a race to the bottom in price. That $1.50 bulb purchase will happen one-fifth as often, breaking old business models. The old stalwarts struggle to compete with new discount-oriented brands.
General Electric, the company Thomas Edison founded, plans to sell its bulb business due to low profit margins.
People just want their 60 Watt bulb back, energy savings be damned.
It’s not even all that great for consumers. That LED bulb is cheap, but you probably don’t really know what you’re getting. The Home Depot and other retail outlets don’t do a good job of explaining color temperature (CCT), lumens, and color rendering index (CRI). Manufacturers fuel the confusion with misleading terms like “soft white” and “bright white.”
Early LED products were plagued with reliability issues and ugly color, further contributing to the stigma.
Oh, you want to use that bulb with your existing dimmer? Forget about it.
All of this leads to mass dissatisfaction. And dissatisfaction results in returns, which does not help the already low-margin consumer lighting business. People just want their 60 Watt bulb back, energy savings be damned.
Things are a bit brighter in the commercial sector. LED fixtures are available in a million shapes, sizes, and colors. Energy and maintenance costs are drastically reduced, improving a building’s bottom line.
Most commercial LED fixtures have no lamps to replace. They are intended to last until the next renovation. Barring any electronics failures, LEDs don’t “burn out.” They just get dimmer over time.


The Lighting Facts label is now found on most lamps. But it is still not clear enough for the everyday user. Image by DOE.

But the B2B sector also has its issues. Lighting controls are increasingly requested, and in some cases even required by law. Very few manufacturers make all the components of a lighting system, leading to incompatibilities. Even when the stars align, it can be extremely costly and time-consuming to commission the system as intended.
The DLC standard focuses so much on energy efficiency that it may ultimately impair quality of light. California, historically the most progressive state in energy regulations, has fought back, putting a higher emphasis on color performance than energy. LEDs are efficient enough, they say. But the state is now under scrutiny for overriding federal energy efficiency regulations.

Blue Light Blues

At the same time, we have become aware of the effects of light on the human circadian rhythm. There’s debate about the nuances, but in general, you can sleep better and perform better when there is significant blue light during the day and very little at night.
In addition to the rods and cones, there is a third type of photoreceptor in our eyes that is only sensitive to blue light. Instead of contributing to vision, these cells tell the body clock when it is daytime and when it is not.
This mechanism worked well up until the last 150 years or so, before electric lighting became ubiquitous. The same lighting found in our homes and electronic devices can trick the body clock into thinking it’s daytime when it is really not.
It’s not like the issue is limited to academics. People are aware of the effects of blue light, and want solutions.
Circadian rhythm disruption may seem like a first world problem, less important than public health issues related to malnutrition and poverty. But it has been linked to breast cancer, Alzheimer’s disease, and other conditions. Additionally, shift work and frequent time zone hopping can contribute to accidents on and off the job, as well as inconsistent menstrual cycles in females.
Apple is the only household name to have taken a significant stance on this problem, with the introduction of Night Shift on iOS in early 2016 and on MacOS in 2017. Night Shift changes phone and computer screens to an orange hue at night, reducing the blue light content. Even then, the feature is not enabled by default and not widely advertised by the company.
Anecdotally, I was in an Apple Store recently. A little old lady came up to one of the employees and asked how to get the orange light back on her phone. It’s not like the issue is limited to academics. People are aware of the effects of blue light, and want solutions.


Usage of blue-light emitting displays at night can disturb the body clock. Photo by KristopherK.
The lighting industry, in general, has made little progress in providing straightforward products that address circadian disruption. The specification community, which includes lighting designers and architects, is begging for systems that support their latest human-centric designs. But their pleas mostly fall on deaf ears.
The industry’s arguments du jour against human-centric lighting circle around: not enough research, disagreements on the spectrum of light, and complexity of integrated systems. In my opinion, these are excuses to avoid pioneering in an unverified market.
The lighting giants are blind to the potential of human-centric lighting to differentiate their businesses. There is room for someone to come in and make a big splash.

Circadian Lighting

Several upstarts have created a category that I call circadian lighting. Broadly speaking, circadian lighting shifts in color and brightness automatically throughout the day. The morning begins with a warm, dim glow, giving way to cool, bright light during working hours. In the evening, the lighting shifts back to a warm glow. It’s a lot like f.lux and Night Shift, but for your environment.
One of the most notable startups in this category is Ketra, which makes a circadian lighting system that can be installed in the home and commercial environments. It’s not particularly affordable, but the Ketra system is the most complete and ready-to-go out of the box circadian lighting solution at the moment.



Not only does circadian lighting match the science, but it also just feels right. Cool, relatively bright lighting during the day makes the indoor environment seem more like outside. In the evening, dimmer, warmer light promotes relaxation. Waking up in the middle of the night, only very dim light is needed to guide the way. Otherwise, the light would startle.



Honeybrains, a health-focused fast casual restaurant in New York City, featuring circadian lighting by Ketra.
Ketra’s offering is by far the most impressive, but there are signs of light from other manufacturers. Philips offers an LED bulb for about $6 that can change between three color settings (dim and warm at night, normal bright incandescent, and cool, bright white for the day) simply by flicking a switch. IKEA has something similar but with wireless remote controls and dimming for $27.
These products can only be controlled manually, and thus are not true circadian lighting. But they are something you can buy today for not a lot of money to get a glimpse into the future.

Light Tuned to You

Circadian lighting sounds great, but what about all the other factors that can influence the circadian rhythm? What about food, social events, caffeine, alcohol, stress, and travel?
A lighting system is unlikely to counteract circadian disruption completely. However, if it knows about your circadian state, the lighting could help normalize the body’s cycle of sleep and wake.
The lighting in your environment would always be the right light for you.
Let’s say you’re traveling to Tokyo in a week. Your destination is 13 hours ahead of Eastern Daylight Time. Instead of throwing your circadian rhythm into a complete 180 upon arrival, circadian lighting could help you shift to the new time zone in the days leading up.
Or you’re a shift worker on the night shift. But you also have weekend activities planned with your family, most of which take place during the day. Circadian lighting could help reduce the grogginess associated with rapidly changing sleep patterns.


Circadian lighting could reduce the symptoms of jet lag. Photo by Jon Tyson.
What if the lighting in your home, car, office, and gym was tuned to your circadian rhythm? What if the light at your desk was different from the light at your neighbor’s desk? What about the lighting in your airplane seat and the hotel room or Airbnb thousands of miles away?
What if the lighting system knows not only that someone is present in a room, but also who that happens to be? The lighting in your environment would always be the right light for you. You never would have to do much more than dim the lights, and maybe not even that.

Building the Killer App

LED lighting quickly moved from an expensive toy for early adopters to a cheap commodity. Now there is room for a killer app, and I believe advanced, connected circadian lighting is the answer.
A great product is simple, understandable, and affordable.
The pieces of the puzzle already exist to make all of this happen. A combination of GPS and an indoor positioning system can pinpoint your precise location anywhere in the world. Info about your sleep hygiene could come from a Fitbit or smartwatch. A phase response curve would be applied to shift your circadian rhythm by the amount appropriate at any given time.




Estimote sells an indoor positioning system solution that could be integrated with lighting.
Whoever builds a circadian lighting solution will recognize that it is no easy feat. It takes an understanding that a great product is simple, understandable, and affordable. It takes the right people working toward a uniform, opinionated vision.
We’ve seen the potential of circadian lighting to positively impact people’s lives. The awareness is there, and will continue to grow.
Now we’re just waiting for the right solution.

Source :Hacker Noon

Interested for our works and services?
Get more of our update !