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  1. How fast do sperm swim and how do they find the egg?

    Nov 8, 2009 · So the sperm are pretty snappy. They get to the egg pretty fast, certainly within a day or so. How do they find the egg? They recognise it by two means: one is a thermal …

  2. What would happen if you covered a swimmer with a hydrophobic …

    Mar 22, 2016 · So to go back to the question, the main thing with going fast is drag. If you can have a hydrophobic substance that repels water, this can make a small increase, but the main …

  3. How fast a rocket can humans safely travel in? | Questions | Naked ...

    Nov 5, 2019 · Answer "How fast a rocket can humans safely travel in?" Space science journalist Richard Hollingham answered this question for us... Richard Hollingham - Okay. That's the …

  4. How fast can an elevator go safely? | Science Questions

    Apr 26, 2016 · Graihagh - And it's the same with lifts. They can go fast on the way up but have to go slower on the way down. Philip - The maximum speed of ascent and descent is set by how …

  5. Spinosaurs did not swim | Interviews | Naked Scientists

    Dec 15, 2022 · Then we put it in water to see how and how well it could swim, what the forces were against the body with a big sail. This was an awkward animal to be swimming in water. …

  6. How quickly can a person exsanguinate from a cut artery?

    Sep 14, 2008 · You can't supply blood to your brain, you can't supply blood to your heart. You conk out pretty quickly. If it's in terms of getting all the blood out of you it probably wouldn't …

  7. Tales of Evolution: How fish conquered the land

    Aug 7, 2017 · However, in some fish, the swim bladder doesn’t split off from the gut tube - it stays connected. This means, instead of depositing gases into the swim bladder from the blood …

  8. QotW: Do we process sound or light faster? - The Naked Scientists

    Aug 18, 2020 · Eva - That’s my excuse for next time I miss the ball playing tennis… But what do we process faster, sound or light? Brian - When an object emits a sound and a light …

  9. How much farting is required for lift-off? | Podcasts

    Jul 26, 2010 · How much and how fast would you have to let loose your intestinal gases in order to lift yourself from the ground? We work through the physics of farting! Plus, we ask why …

  10. Would you explode, or freeze, in space? | Science Questions

    Jul 3, 2013 · I have a theoretical question about being exposed to outer space. If a person were to be instantly exposed to outer space, perhaps something like an astronaut opening his/her …