Wind-powered turbines are powerful machines. So why only three blades? Dr Rosemary gives Dr Karl an introduction to the engineering and physics of getting electricity from air currents. drkarl.com    

Wind Physics with Dr Rosemary  (340)

Dr Karl’s a curious optimist – a great combination for a science lover. Join him and his guests for weird facts, amazing conversation and remember, it’s never too late for a happy childhood. 
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Science

Physics

Earth Sciences

Dr Karl investigates the science of rear emissions with a dietetics Professor Clare Collins. How much per day? What makes them smell? What makes them feel hot? Prof Clare Collins Dr Karl

Fart Busting with Prof Collins (382)

Crops under attack, falling nutrition, viruses spread by Insects. Dr.Trebicki researches agriculture on a warming planet and the news is not great. Dr Karl addresses the myth that Carbon Dioxide is good for all plants. @PiotrTrebicki  Dr Karl    

The Nymphageddon with Dr. Trebicki (381)

Silicon chips are everywhere. Will they continue to multiply ? Does meeting carbon reduction targets rely on Solid State efficiency ? Dr Karl talks benefits and costs with Dr Lang. Dr Karl Dr Lang

Solid State Logic  with Dr Lang (380)

Why use a balloon to hunt the most elusive suff in the Universe? Dr Sirks takes Dr Karl through the history of Dark Matter and why astronomy is only part of the solution. DR kARL Dr Sirks  

Ballooning for Dark Matter with Dr Sirks  (379)

There is a perception that the worst pesticides were banned years ago. So why are Insects (including bees) in decline? Dr Sanchez-Bayo says a family of water soluble pesticides are to blame. He names them and wants to know why they are still being sprayed in Australia.  Dr Sanchez-Bayo  Dr Karl  

Wind Physics with Dr Rosemary (340)

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