A new source of electrical energy
Proof-of-concept holds great promise.
It sounds like something from the 1960s, but the “bionic mushroom” could be a tantalising glimpse of the future. US ...
Energy
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What is radioactivity?
A source of immense energy with a long and dangerous history.
We owe the discovery of radioactivity to bad weather. French physicist Henri Becquerel was trying to study fluorescen...
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Nikola Tesla: The AC/DC current wars make a comeback
The Tesla vs Edison battle of electric current is till on.
The decisive battle took place in 1893 at the Chicago World’s Fair. On one side, the celebrated inventor Thomas Ediso...
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How solar cells turn sunlight into electricity
In 2015, around 500,000 solar panels were installed daily around the world.
Renewables have overtaken coal as the world’s largest source of electricity generation capacity. And about 30% of tha...
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Generating solar electricity at night
Mirrors use energy from the sun when it’s not shining.
One of the biggest issues facing renewable energy has been generating power during periods of unfavourable weather or...
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Heat: Energy from thermoelectricity
It may be possible to recycle heat from computers and cars.
Capturing the heat from your car’s exhaust or your computer and turning it into power has just become a hot prospect....