Episode 131
Why are Cacti so Spiky?
On Ask the Naked Scientists this week, we find out how cacti can survive with very little water, and why they are so well endowed with spines! We answer your questions on asteroids, the size of the universe and the correct angle to leave...
August 26, 201025m 51s
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Show Notes
On Ask the Naked Scientists this week, we find out how cacti can survive with very little water, and why they are so well endowed with spines! We answer your questions on asteroids, the size of the universe and the correct angle to leave the Earth. Plus, we test Dave's knowledge of anti-ageing cosmetics! Like this podcast? Please help us by supporting the Naked Scientists
Topics
naked scientistsspacesize of spacecacticactusspinewaterasteroidcosmeticsanti-ageinganti-agingcaffienecolachinese lanternoxygenatmosphereprojectilerechargeable batteriesenergy consumptionstarsgalaxyblack hole