How do they make electricity?

electricity_power_girl

In Britain, it is easy to take our reliable electrical power supply for granted. Many things in our homes, schools, work places and public spaces are powered by electricity. Think for a minute about all the things you’ve done today – how many of them used electricity?

I’m sitting in my kitchen, using a laptop to type this blogpost with the lights on, sipping a hot cup of tea. I wonder how much electricity I’m using right now?

So, how do we make electricity? And how do we keep our power supply reliable?

Continue reading

Advertisements

Where does static come from?

My friend asked this question about ‘static’ when she was having a bad hair day. Static electricity causes lightning, makes a crackly noise when you take off a polyester jumper, and can make your hair stand on end. But where does static come from?

hair_static_science

Continue reading