Why do athletes spit on the ground?

Loading player...
Dr Chris and Clarence take on another selection of topics from across the scientific spectrum: Who were the victims of the Mount Vesuvius eruption? How does one get rid of ringworm? What are the effects of a low heart rate? If our internal body temperature is 37 degrees, why do we feel warm when it's 35 degrees outside? What is an eating disorder? Can an element in the periodic table be changed into another? Like this podcast? Please help us by supporting the Naked Scientists
8 Nov 2024 English United Kingdom Science

Other recent episodes

Why don't melting ice cubes make my drink overflow?

How does polio cause disease? Why does ice added to a drink not make the glass overflow when the ice melts? What's the point of the appendix? Is old poison, past its expiry date, still toxic? What techniques built the pyramids? How do we treat hypotension? Why do our brains…
24 Apr 21 min

Do dogs dream?

Do dogs dream? Can someone who was born blind dream? Do animals have souls? Do certain eye colours have more advantages than others in terms of sight? What is blind sight? What are growing pains? Is it unhealthy to sleep with closed windows? And what is some advice for sleepwalkers?…
17 Apr 22 min

What caused the craters on the Moon?

How does the heat shield protect the Artemis II astronauts on their return to Earth? What caused the craters on the Moon? Can the materials in cooking pots cause poisoning? What is seasickness? Can space missions take place during periods of high solar activity? And what propels spacecraft? Dr Chris…
10 Apr 22 min

What colour is a mirror?

Why some people can't say their Rs; why is perception of time so context dependent; what's the nutritional value of long life milk; what determines how tall we are; why do some mirrors make you look a strange shape; why to take care with magnesium supplements to avoid explosive diarrhoea;…
27 Mar 21 min

Do we all see colours the same way?

On this week's show, why dogs don't live as long as humans. Also, why do we feel cold when our skin is warm to the touch? Do we all see colours the same way? Do animals experience embarrassment? If photons head towards two small slits, do they only pass through…
13 Mar 23 min