We’ve never torn one apart ourselves, but it boggles the mind just a little bit to learn that these cooling fan controllers generate heat to do their job. We’d bet we’ll get shouted down in ...

Many are familiar with so-called photovoltaic cells, or solar panels, found on things like ... The heat is then used to boil water to drive a steam turbine that generates electricity in much ...

While light energy from the sun makes things visible (if you've got your eyes open). People have invented ways to generate heat and light energy too. These solar panels take light energy from the ...

"The internal things that actually make it all work, unfortunately, themselves generate heat in the way they work," says Dr Roz Wyatt-Millington, a senior lecturer in electronic and electrical ...