Gazing off into empty space or being the target of a ‘stare bear’, it can happen to us all. Staring into the middle distance can be relaxing and head-clearing, but fixing our eyes on nothing at all for a very long time can be just plain dangerous.

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 13.04.2021Staring into empty space
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Folge vom 06.04.2021Virus 104The last few episodes have considered the difference between a virus and a bacterium; wondered whether a virus is alive or not; and looked at our discovery of these incredibly tiny critters. While mysteries surrounding viruses are intriguing, without them we couldn’t have babies or even think.
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Folge vom 30.03.2021Virus 103This COVID-19 pandemic is the first one for 102 years. In 1918-1920 we had an influenza pandemic, which we now refer to as the Spanish Flu. Back then we didn’t know about a thing called a ‘virus’, so in 1918 no-one knew what was killing people. But we did know about germs.
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Folge vom 23.03.2021Virus 102Bacteria and viruses both have the genetic code needed to make babies but only a bacterium has all the biological machinery to make another bacterium. A virus has to get into a cell and make it start manufacturing copies of the virus. So, is a virus 'alive' – well, depends on the definition.