Energy & Green Tech

Li-ion batteries: Science 'directly into your hand'

They are omnipresent and essential to navigating modern life. Small, light, rechargeable: lithium ion batteries have revolutionised our world in less than three decades.

Energy & Green Tech

Moving e-cars into the fast lane

Researchers have been looking into silicon carbide, a promising alternative material for the semiconductor industry, for several years now. The Fraunhofer Institute for Reliability and Microintegration IZM joined forces with ...

Energy & Green Tech

Wind power from the sky

Anyone who has ever steered a child's kite knows the feeling: The wind grips the kite and pulls the string. The string is quickly tensioned, the spindle rotates between the fingers and is difficult to control. The question ...

Energy & Green Tech

Emissions-free transport speeding up in Europe

Hydrogen-powered cars are seen as a potential solution to the pollution caused by gasoline and diesel engines, but the mass roll-out of fuel cell electric vehicles (FCEVs) hasn't yet materialized. As noted in a report by ...

Security

Researchers invent low-cost alternative to Bitcoin

The cryptocurrency Bitcoin is limited by its astronomical electricity consumption and outsized carbon footprint. A nearly zero-energy alternative sounds too good to be true, but as School of Computer and Communication Sciences ...

Consumer & Gadgets

Smart devices need to get smarter to help save energy

As the growth in connected devices outstrips that of conventional home appliances, consumers will find it increasingly more difficult to understand which electrical devices are consuming the most power in their homes, and ...

Energy & Green Tech

Device generates light from the cold night sky

An inexpensive thermoelectric device harnesses the cold of space without active heat input, generating electricity that powers an LED at night, researchers report September 12 in the journal Joule.

Energy & Green Tech

E-bike grumbles echo in the Bavarian Alps

Robert Werner and his wife Ursula usually make time to say a friendly hello to hikers as they ride their gently whirring e-bikes up trails in the Bavarian Alps.

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