Reclaiming Wasted Watts - Thermoelectric Generators

Reclaiming Wasted Watts - Thermoelectric Generators

Over two-thirds of the energy in the fuel you put into your car is wasted, most of it in the form of heat that exits along the exhaust pipe. The same is true of large-scale power stations, which are only 50% efficient at best. But now researchers are bringing 200 year old physics to bear against the problem by developing thermoelectric generators (TEGs) that can turn waste heat into useful electricity and this week we find out how. Plus, news that disguising cancer cells as Salmonella could hold the key to producing effective anti-cancer vaccines, why the Y chromosome boosts heart attack risk,... Like this podcast? Please help us by supporting the Naked Scientists

Jaksot(1223)

Why Is Ice Slippery?

Why Is Ice Slippery?

Can moonlight and a magnifying glass be used to start a fire? Why do bananas go brown and does it happen faster in the fridge or the fruitbowl? Why are ice and snow slippery? And how does flyspray wor...

22 Loka 20111h 1min

Plant Pests and Plant Pathology

Plant Pests and Plant Pathology

This week, Plant Pests and Plant Pathology - we find out what happens when plants get ill, how to understand and prevent the spread of plant disease, and how they can call up an insect army to defend ...

15 Loka 20111h 9min

Outpacing Petrol - Biofuels and Hydrogen

Outpacing Petrol - Biofuels and Hydrogen

This week, we're investigating alternatives to petrol. We'll board a biofuel powered bus to meet the plant scientists who are using algae to make biodiesel. We'll find out how to turn household wast...

8 Loka 20111h 3min

Would a Siphon Work in Space?

Would a Siphon Work in Space?

Could a Siphon be used in orbit? Why do leaves change colour in Autumn? How is immunity passed from mother to baby through breastfeeding? Why do earthquakes happen away from plate boundaries? How do m...

1 Loka 20111h 7min

Cheese Making and Cake Baking: The Chemistry of Cookery

Cheese Making and Cake Baking: The Chemistry of Cookery

We've whipped up an appetising take on the science of food and cooking for you this week. With a main course of cookery in the kitchen served up by a cake-baking physicist followed by a microbiologica...

24 Syys 20111h 10min

Chilling Out - The Science of Cryogenics

Chilling Out - The Science of Cryogenics

This week, we're chilling out in the world of cryogenics, the science of the super-cold. We'll find out what happens to living tissue when it freezes, and how we can use low temperatures to keep organ...

17 Syys 20111h 3min

Supercomputers & Super Computing

Supercomputers & Super Computing

This week, we seek the science of supercomputers! We find out how they work, and how they can answer some of the biggest questions in science. We also hear about the World Community Grid, which offe...

10 Syys 201157min

Australopithecus Sediba Special

Australopithecus Sediba Special

Reader in evolution at Wits University, Lee Berger, made a life-changing discovery when he uncovered the remains of a new species of hominid, Australopithecus sediba, in South Africa. Here, Chris Smit...

7 Syys 201137min

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