Jamie Condliffe - 

There’s a hackneyed scientific description of what it means to touch things: your arse never actually “touches” a chair when you sit down, so it goes, but instead is repelled because of electrons that come up against each other. But is that really the case?

This episode of Minute Physics attempts to get to the — ahem — bottom of the issue. In reality, it boils down to exactly what we mean when we say “touch”. Watch it and find out. [You Tube]