by How It Works Team · 04/06/2013
Tags: central heatingcutawayhot watertankwater heater
19/11/2009
27/11/2010
11/02/2011
Follow:
Competition
Win a pair of Urbanista headphones worth £149!
27 Feb, 2019
Why are most people right-handed?
What is orange juice ‘from concentrate’?
Why does polar bear fur sometimes look yellow or green?
Did American football derive from rugby?
Why does cling film cling?
What were the Salem witch trials?
Does space have a sound?
How did the sun form?
Do astronauts still have to be quarantined when they return to Earth?
Why do people put chains on tyres in snowy weather?
Why has the James Webb Space Telescope been delayed?
What is sand made of?
More
On sale now
