For such a common question, this took a lot of answering.

Wissenschaft & Technik
Great Moments In Science Folgen
From the ground breaking and life saving to the wacky and implausible, Dr Karl Kruszelnicki reveals some of the best moments in science.
Folgen von Great Moments In Science
249 Folgen
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Folge vom 17.10.2017Why the sky is blue. For reals
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Folge vom 10.10.2017The origin of spaghettiAn upturned bowl of 4000 year old noodles is the key to pasta evolution.
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Folge vom 03.10.2017Can we detect lies?Despite what TV says, can you trust a Lie Detector?
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Folge vom 26.09.2017Four leaf clovers not so luckyAre four leafed clovers really that rare?