This equation is just like the one to calculate the pressure from the mercury except that it uses the density of air (1.2 kg/m 3). Ascending a 30-meter building would see the pressure decrease by ...

Around the same height as me and it walked on two feet so its skeleton would have looked like this. PRESENTER:'Just look how big the Scalby beach Ornithopod was! About 4.5m from nose to tail.