‘Li-Fi’ – A plan to turn every lightbulb into an ultra-fast alternative to Wi-Fi

Li-Fi doesn’t work in the dark or outdoors, but it only has to be a supplement to existing wireless networks to be valuable.

The more popular wireless networks become the slower they are. Fudan University researchers in Shanghai have just become the latest to demonstrate a technology that transmits data as light instead of radio waves, which gets around the congestion issue and could be ten times faster than traditional Wi-Fi.

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Laser Makes Regular Lightbulbs Super-Efficient

Laser Makes Regular Lightbulbs Super-Efficient

Everything is Better with Lasers 

What if you could take a regular incandescent lightbulb, zap it with a powerful laser for a small fraction of a second, and make it about twice as efficient as a regular lightbulb? That seems to be what researchers at the University of Rochester did. What does the laser do? It creates an “array of nano- and micro-scale structures on the surface of [the] regular tungsten filament-the tiny wire inside a light bulb-and these structures make the tungsten become far more effective at radiating light.”

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Eco-friendly Designer Lightbulbs

Eco-friendly Designer Lightbulbs 

 New bulbs are called Plumen

Now that we’re moving on from traditional lightbulbs to more eco-friendly designs, designers have much more freedom with what they do with light. Design house Hulger is tackling light bulbs as their next big object, using the twisting tubes as pieces of functional art that you won’t want to hide behind a shade.

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Cylindrical Solar Cells For Big Buildings

Cylindrical Solar Cells For Big Buildings

 Cylindrical solar cells, which can be arranged in rows to make solar panels,
are particularly suited for generating power atop commercial buildings.

A startup is selling cylindrical solar cells that can generate more power than conventional panels.

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LED Lightbulbs Coming in 2-3 Years

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Are LED Lights The Wave Of The Future?

Faiz Rahman, a nanoelectronics researcher at the University of Glasgow, predicts that LED light bulbs for the home will start appearing on store shelves in the next 2-3 years to compete with incandescent and fluorescent bulbs.

If so, the LED bulbs would provide a much greater efficiency (up to 70%) compared with incandescent (5%) and fluorescent (25%) bulbs.

Continue reading… “LED Lightbulbs Coming in 2-3 Years”

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