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MRI sex

Researchers have captured MRI images of couples having sex to study reproductive anatomy.

Black hole trip

A new simulation shows what it would look like to fall into a black hole.

Wet shoe physics

Find out how the top of your shoes get wet while you're walking on a damp day.

Walking gel

A gel has been found to grow and shrink in response to a chemical, enabling it to 'walk'.

Inside a bullet wound

New software allows crime scene investigators to perform autopsies virtually.

Invisibility

We look at two different techniques that are closing in on the dream of invisibility.

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