Weird but Green: Donkeys Carry Solar Panels to Charge Shepherds’ Smartphones

To set the scene, currently Google and Facebook are arguing over who would own the technology that could one day provide wireless internet to...

Water Powered Alarm Clock Keeps Track of Time Using Only Tap Water

Do you usually take ages to pick the best birthday or graduation present for a friend? And does it become harder when this person...

New Pyroelectric Device Transforms Heat into Electricity With 30% Efficiency

Thermoelectric devices transform waste heat into electricity and can one day provide increased efficiency for everything from small gadgets to power plants. Scott Hunter, working at the Oak Ridge National Laboratory (ORNL) hopes his new heat-recovering invention will scavenge lost heat with an efficiency of up to 30 percent.

Comeback of Vacuum Tube Technology: The Ultimate in Transistor Speed

Electron movements in silicon transistors are limited by collisions and scattering. What if the bumps are removed and the electrons can travel freely in...

Energy Efficient, Long-Lasting Graphene LED Bulb Hits the Market

The very first product made of graphene to hit the market is a highly efficient, energy saving and long lasting LED light bulb. The long...

NGK Discovers 90% Efficient Gallium Nitride LED Source

A new gallium nitride (GaN) semiconductor developed by NGK Insulators will hugely increase the luminous efficiency of LEDs from 30-40% to about 90%, reports...
Quantum Dot LED

Hugely-Efficient LEDs Now Use Quantum Dots

Global warming and pollution are already impacting our lives. There are millions of deaths every year that are caused by them. For that reason, researchers...

Thermoelectric Phone Charger Provides Electricity From Camp Fire

Hatsuden-Nabe is the name of a device that can charge up your cellphone by using wasted heat. It's available in Japan since yesterday and it surely attracts a lot of hikers and adventurers, who think this could save their lonesome journeys.
Gallium [Ga] Crystals

Electronics-Scavenged Gallium Responsibly Recycled by Mitsubishi

Often, recovering rare-earth elements from recycled scraps, such as scrap electronic devices or car electronics, requires processes that aren't very earth-friendly. Gallium , for...

DIY: Home Built Steam Powered iPod Charger

What can you do with a steam powered engine, a LEGO toy kit, some wood sticks and a USB cable?