Dr Pedro Viegas from Bristol University shows us his instrument – a tiny pneumatic drill used to dig out fragile dinosaur bones without destroying them.
The team are using these drills to excavate the Bristol Dinosaur, a Thecodontosaurus which lived 200 million years ago.
Available since: Thu 19 Sep 2013
This clip is from
Adam Rutherford asks how difficult it is to destroy chemical weapons.
First broadcast: 19 Sep 2013
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