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Bug batteries

 
Did you know that bacteria can make electricity in a 'bug battery' known as a microbial fuel cell?

So, what do bug batteries like to eat? Well, lots of things.

At the moment most bug batteries use sugar as a source of energy, but the aim is to make bug batteries that will run on things we really don't want, such as potato peelings and other leftovers.

This would be a great way of using energy that normally just gets wasted because it's so hard to get at.

And although bug batteries produce greenhouse gas as a waste product, this would be released anyway as the leftovers rotted away naturally, so overall this technology does not affect climate change.

Scientists are already using bug batteries to power small robots. The robots are called 'gastrobots', because they have stomachs.

They are able to feed their bug batteries by 'eating' sugar. Soon they will be able to get their fuel from other things too.


What is "Climate change"?
 
What is "Greenhouse gas"?
 
What is "MFC"?
 
Fascinating fact
Fascinating fact

Gastrobot bacteria
Gastrobot bacteria

Gastrobot food
Gastrobot food

Bug batteries
Watch: Bug batteries