Outer Space Does Your Body Bad -  #9

A Spot of Science: Outer Space Does Your Body Bad - #9

How do birds sit on live wires and not get electrocuted? And, the damage outer space does to your body. Gus Sorola challenges Chris Demarais and evolutionary biologist Sally Le Page with some of the quirkiest science questions submitted by viewers. Brought to you by MVMTWatches.com/SCIENCE ( http://bit.ly/2mB6GsK )

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Comments (41)

  • Korakys FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    I'm a Mars colony sceptic, but I think Sally here overstates how bad the gravity issue would be on Mars. Microgravity like in the ISS is a lot harder to deal with than 38% gravity on Mars. The big unknown is actually the one Chris (!) brought up, which is that giving birth requires gravity. No-one knows if 38% is enough for that to work yet. Anyway there are much bigger problems with colonising Mars than the gravity.

    • JazzHandsFan

      3 weeks ago

      Well, as far as the act of giving birth itself, gravity isn't required, because iirc hospital beds for women giving birth weren't always angled, they used to be flat, and before that they had the ground. I don't know if low gravity would affect the process of going into labor, but pushing out babies shouldn't require gravity. And yes, the whole "air and sunlight" problems are far more prevalent than low gravity.

  • imnotbenji FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    Chris's question about working on power lines may have sounded a bit dumb at first, but back during my electrical occupations class we actually had an instructor that used to be a lineman. On those high power massive lines they can't afford to take them offline. Sally is right about Faraday Cages, one of the most amazing things they'll do is actually fly a helicopter up with a guy wearing basically a Faraday suit and having to use a hot stick to match the line before climbing up, and then matching back to the helicopter before leaving the line. Watching videos of it is amazing. I can't believe I actually found this old clip (Old instructor is the one in this too. x3)





  • Triforce96 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold SalvaJor

    4 weeks ago

    So what i got out of this is Space the final frontier isnt every going to happen hahah

  • madilovesu FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    RIP Matt Damon. He would have been destroyed on Mars.

  • RadzfotoBros FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    Actually as far as muscle atrophy goes, thanks to a very clever weight 'lifting' device, which was shown on the Youtube channel smarter every day, muscle and bone atrophy is almost a non-issue. It uses a vacuum to create a constant pressure which can be varied using levers. Here is the video, I highly recommend watching it. Also I want to be clear, when Sally says that the astronauts are in 'microgravity' what she means is that they experience microgravity. Astronauts aboard the ISS actually have 95% earth's gravity acting on them, but because they are in constant free-fall they experience "weightlessness". 

  • scubadan FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    When Sally said "high gravity spa" I just pictured Vegeta training 


    • JazzHandsFan

      3 weeks ago

      It would, in reality, probably be a giant top with people inside, or just be like a less intense version of the astronaut training spinner things.

  • MrShampha FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    Chris has worn the same shirt in every episode.

  • Robobagpiper FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    38% gravity is bad. Lack of a magnetosphere is worse.

  • komoto415 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    Aldnoah Zero anyone? 

  • Wolfwood_RoT FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    I always wondered as a thought experiment if filling a space station with water would prevent muscle loss if you were always moving against the pressure.

    Obviously this creates a mess of other problems :p 

    But maybe going back to being an aquatic species is more beneficial to space travel.


    Can we just start messing with genetics already? I want gills. 

    • TheBoJaN FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      Kind of like indoor skydiving but in reverse and with water? Interesting idea

  • DavidtheWavid FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    "Unless space, unless somehow we get travel like... that."

    Chris Demarais 2k17

  • MiniHoss FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    These ads are getting a little annoying. I'm glad they moved them to the top of the show but they are just so fake.

    • Treanomaly FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold First with benefits

      4 weeks ago

      You could just skip them?

    • Quizzical_Quark FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      Especially the mvmt watches, because they're overpriced junk, but that's how the world works unfortunately.

    • Atrocitus117 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      Skip it and quit bitching.

  • LoneSerenade FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    who the fuck asked that first question? why would you guys waste time on that one?? isnt that common knowledge?!

    • LlamaLoupe FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold ​Actual llama.

      4 weeks ago

      No, and there's no reason why it would be common knowledge. Most people don't learn how electricity works exactly in school and never encounter the problem or never think to ask. I hope you don't have that kind of reaction to people asking questions irl, that's how you discourage them from learning anything.

    • lcephoenix FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      @LlamaLoupe "Most people don't learn how electricity works exactly in school" Wait, what? I would totally count it as common knowledge as well, we learned about that stuff in I think our 6th or 7th year of school. Weird.

  • mitzt FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold Boop!

    4 weeks ago

    That space question is just begging for someone to mention The Expanse book and tv series. They actually use those consequences of physiology from living and growing up in low g as part of the social and political structure after humanity has started colonizing the rest of the solar system.


    I'm not sure exactly how Sally imagined gravity spas being implemented to combat those issues but I thought that we don't currently have materials strong enough to create  centrifugal "gravity" that would allow people to experience a full g, and definitely not in a size large enough to decrease the Coriolis effect.

    • gruesomecola FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      The most recent episode even covered this topic with the Martians arriving on Earth.

    • Nightmage FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      We artificially create a full g and more all the time."Gravitron" amusement park rides generate around 3 g. Astronauts go through high-g training and the machines they use can go up to 20 g. The Coriolis force has no impact unless there's motion along the radial direction.

  • cocoapelican FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    Now I want a new Mars-Human species. Let's do this.

    • Treanomaly FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold First with benefits

      4 weeks ago

      Like a Martian?

  • Icky427 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold Icky

    4 weeks ago

    this one was super interesting, i love space! i had no idea people living on the iss had such issues. i know they have to exercise a bit but i always thought that was enough and they didnt have any issues when they came home.

  • BOWTIEKID FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    While it is best to give a full scientific explanation, we could've said "The bird isn't grounded, so it can't be electrocuted." A bit long-winded for that question.

    • Caedus77 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold Aaron

      4 weeks ago

      But that would be wrong, she said if the bird touches two wires it will be electrocuted (without being grounded).

  • Sirspence777 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    As someone who is constantly asking weird questions about shit, this is possibly the best show ever.


  • whatdajay FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold True King in the North

    4 weeks ago

    You're tell me that if we go to Mars I can get some Saiyan level training chambers?! SIGN ME THE HELL UP!

    • Icky427 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold Icky

      4 weeks ago

      500 times earth's gravity?! you'd be crapping out your own spine!

  • Galm666 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold ODST

    4 weeks ago

    Would the adaptations gained from living in Mars's lesser gravity actually mutate someone/generations of people into a completely new species? I don't see why they would be anything more than a Martian race of Human.

    • kaikaips3 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      I'm not sure, but I think even small distinctions can separate animals into species. What we consider "race" is more of a cosmetic distinction, and not a functional one, which is why we're all one species.

    • DandarTheGreat FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      The idea is that you get speciation within species as a result of geographical isolation without the need for beneficial adaptations. Even if they are not selecting for specific mutants then the mutations that arise by pure chance could still eventually lead to speciation if there is no mixing of gene pools.

    • Treanomaly FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold First with benefits

      4 weeks ago

      Well if you believe we evolved from apes then yes. If you believe that all life was merely spawned and each species existed spontaneously than no. The thing is, the process would take longer than an individuals life so either way we'll never know. 

  • AceofAces007 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

    4 weeks ago

    Wouldn't artificial gravity on par with Earth's gravity prevent many of the problems that they mentioned with colonizing Mars? Since Mars' atmosphere is unbreathable, you would have to live indoors. People would only be outside in spacesuits for short periods of time, and it sounds like short term exposure to low gravity wouldn't cause these adverse effects; only long term. If you spend the majority of your time under normal (albeit simulated) gravity, there wouldn't be any problems.

    • kanw FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      the way we create artificial gravity is to take an area and to spin it. The centrifugal forces acting on the objects inside the spinning area causes them to move to the outside walls and depending on how fast  the area is spinning determines how many gs the objects are under. To make a base with complete artificial gravity on another planet would take a lot of power, and constant work to insure it doesn't brake down. It would be more practical to make a designated area for artificial gravity separate from where they live and work in case of it breaking and the power wouldn't be the same power that the base and equipment inside there would use.  

    • AceofAces007 FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      @kanw, I imagine that by the time we're ready to colonize Mars, we would have solved that issue. It's just one of a thousand problems for NASA to solve in the interest of space colonization.

    • ZachTheCommy FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold Guardian x4

      4 weeks ago

      The idea behind the Mass Effect games is scientifically plausible. Energy accounts for a significant portion of the mass of matter. The Quantum Chromodynamic Binding Energy of the quark-gluon plasma inside of protons and neutrons accounts for 99% of their masses. If we could somehow alter that binding energy, we could change the mass of atoms. Also, the binding energy between electrons and nuclei creates an effect of negative mass. Artificial gravity is hypothetically possible if particle physics and quantum physics allow for an amazing discovery like that.

    • tahupierce FIRST Member Star(s) Indication of membership status - One star is a FIRST member, two stars is Double Gold

      4 weeks ago

      Yeah I thought it was weird she didn't mention that. I can't imagine NASA putting down a long-term base without a low rpm centrifuge to keep everyone at one g.