Why does time only move forward?

--:--
How do we know that white light contains every colour? Why does time only move forward? Why aren't birds electrocuted by power lines? How do aeroplanes manage to stay airbourne? Why can't different species reproduce? How do X-Rays work? Why do antibiotics work against bacteria, but not viruses? Lester Kiewit and Dr Chris have the answers... Like this podcast? Please help us by supporting the Naked Scientists
28 Jul 2022 English United Kingdom Science

Other recent episodes

Will ChatGPT replace The Naked Scientists?

Why do animals dream? Why do weird dreams feel so normal? Do ovulating people have more vivid dreams? Why might someone stop dreaming? Will ChatGPT replace The Naked Scientists? What is deja vu? Why is so much money being invested into AI? Can sunflowers absorb radioactive waste? Is the Mexican…
28 Sep 20 min

Is one apple a day enough?

Do skin care products live up to the hype? Is it cheaper to heat homes with electricity or gas? How does IVF work? How long will the sun continue to burn for? What is arthritis? What is the sensation of deja vu? Is there a cure for baldness? Like this…
22 Sep 25 min

How do we know what other planets are made of?

How does colour blindness work? How do we know what other planets are made of? Why might a red dye suddenly disappear? Why don't you feel the velocity of a plane for the whole flight? Do mobile phones in crowded spaces expose us to anything dangerous? What causes testicular torsion?…
14 Sep 24 min

What's the best way to stop signs of aging?

Do collagen skin treatments work? What exactly are teeth? Are DNA tests ever 100% accurate? Why do dead bodies float? Why doesn't the pole star move? Like this podcast? Please help us by supporting the Naked Scientists
7 Sep 14 min

Why do wires always end up in knots?

Why am I right footed, but left handed? Why are dogs' sense of smell so superior? Do people with bigger eyes have better peripheral vision? Why do guns recoil? What's the function of the black patterns on the peripheries of car windscreens? Why are yawns contagious? Why are nuclear bombs…
1 Sep 23 min