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Scientists have been meeting at London’s Royal Society since 1660 and this week, the Summer Science Exhibition celebrates the latest in cutting-edge science. Claudia Hammond gets to grips with a soft robotic heart which beats in time to your own pulse and is designed to show how different diseases affect the shape, size and blood flow.

After 25 years of restrictions on banning single-occupant cars, Jakarta’s authorities have decided to ditch it. But live data from Google Maps has shown how the gridlock has returned immediately. If we wound back the clock some 66 million years ago, there may have been a gridlock of another kind – a logjam of frogs! New research shows how these creatures thrived after the asteroid impact that wiped out the dinosaurs.

But some of these dinosaurs might not quite be as lizard-like as we might think. New fossils from China suggest they resembled chickens. Back in today’s world, we have the smart sensors tracking bat squeaks in unprecedented detail and Raspberry Pi, the small but mighty microcomputer, has won the UK’s top engineering innovation prize.

We also grapple with the mysteries of time and hear about a new app to help with paranoia.

(Photo caption: Heart In Your Hands © Rusty Squid)

The Science Hour was presented by Claudia Hammond with comments from ´óÏó´«Ã½ Science Correspondent Helen Briggs

Producer: Graihagh Jackson