Did you know? (Random things in life)

Discussion in 'Chez Ziggy' started by Tricia, Jun 16, 2019.

  1. James

    James Skiing the powder Instructor

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    Ok, it looks like the definitions of poison take into account the dosage and the organism.
    Like chocolate is poisonous to dogs.

    On the oxygen thing, might take a while. Apollo used 100% oxygen once in space. After the Apollo 1 fire during a test on the pad that killed 3 astronauts, they switched from 100% oxygen at 16psi to 60/40 Oxygen/Nitrogen at 16psi. But only on earth.
    This changed after launch over 30 hours time to 100% Oxygen at 5 psi and remained that for the flight. So that's 7-12 days depending on the flight.
    https://history.nasa.gov/SP-368/s2ch5.htm#131

    Skylab was 74% oxygen 26 nitrogen at 5 psi.
    https://history.nasa.gov/SP-400/ch2.htm

    I think that Mir and the Space Shuttle used what the ISS uses. Very much like earth.

    The International Space Station is 78%Nitrogen, 21% Oxygen. 14.7 psi Basically like earth sea level.
    http://www.e-missions.net/ssa/CH4-breathingonthespacestation.htm
     
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  2. geepers

    geepers Out on the slopes Skier

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    Something something partial pressure.

    So less of a problem where the O2 partial pressure is not too far off Earth standard. (20% of 14.7 psi?)

    The bigger problem is activities where the pressures are multiples of that. Like diving under water and hyperbaric medicine. Oxygen toxicity is a catastrophic hazard in diving, because a seizure results in near certain death by drowning. The seizure may occur suddenly and with no warning symptoms. The times to stay within are relatively short: 45 minutes at 1.6 bar (160 kPa), 120 minutes at 1.5 bar (150 kPa), 150 minutes at 1.4 bar (140 kPa), 180 minutes at 1.3 bar (130 kPa) and 210 minutes at 1.2 bar (120 kPa), but it is impossible to predict with any reliability whether or when toxicity symptoms will occur.

    Those who like to dive deeply know about effects of other gases including nitrogen (narcosis and decompression sickness). And various gas mixtures are used like nitrox (reduced nitogen) and heliox (replace some or all of the nitrogen with helium) to work around some of the issues.

    Or you can do what I do and don't venture below 60ft. (Yep, did in the past, when all this stuff was less understood than these days. No bone necrosis so far, phew...)
     
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  3. VickiK

    VickiK Getting off the lift Skier

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    If you use an Instant Pot to make hard-boiled eggs (eggs, 1 C. water, 4-5 min., partial natural release), they will peel like a dream.
     
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  4. Jenny

    Jenny Out on the slopes Skier

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    Hmm - guess what we'll be trying this weekend . . .
     
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  5. Uncle-A

    Uncle-A In the words of Paul Simon "You can call me Al" Skier

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  6. Josh Matta

    Josh Matta Making fresh tracks Instructor

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    Did you know the only animal on earth to make up stories are humans?
     
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  7. Uncle-A

    Uncle-A In the words of Paul Simon "You can call me Al" Skier

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    How do you know for sure?
     
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  8. Thread Starter
    TS
    Tricia

    Tricia The Velvet Hammer Admin Pugski Ski Tester

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    I think you're making that up ;)
     
  9. Philpug

    Philpug Enjoying being back on two skis. Admin Pugski Ski Tester

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    There are just three days of the year where there are no scheduled major sports games (Baseball, Football, Basketball & Hockey), the day before, during and after the MLB *All Star game.

    *this can be considered an exhibition game
     
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  10. Thread Starter
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    Tricia

    Tricia The Velvet Hammer Admin Pugski Ski Tester

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    Did you know..
    giraffe's spots are unique, just like a person's fingerprints are unique.
     
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  11. David Chaus

    David Chaus If I am skiing the world is a perfect place. Skier

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    A slug has approximately 27,000 teeth – that's more teeth than a shark. Like sharks, slugs routinely lose and replace their teeth.
     
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  12. T-Square

    T-Square Terry Moderator Instructor

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    Thank God they’re slow! That’s the beginning of landsharks.
     
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  13. James

    James Skiing the powder Instructor

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    Lol. Mlb wouldn't like you calling the All Star Game not a major sports game.
    What about Christmas?

    There's also Wimbledon, at least 6 MLS games Wed, one Wnba game Tue and 4 Wed, tons of Nba Summer League games both Tues/Wed.
     
  14. Philpug

    Philpug Enjoying being back on two skis. Admin Pugski Ski Tester

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    There are always basketball games on Christmas.
     
  15. James

    James Skiing the powder Instructor

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    That’s just wrong!
     
  16. Uncle-A

    Uncle-A In the words of Paul Simon "You can call me Al" Skier

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    I don't know about giraffes spots, but I do know the spots on the whales tail AKA the Fluke are unique. The scientific people that study the whales use the spots to identify them.
     
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  17. CalG

    CalG Out on the slopes Skier

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    In training a pup, feigning hurt to your person when the play gets too rough is an effect tool. The pup/dog will recognize the situation and learn that too much is too much. Dogs don't feel pain at the levels we do. How else are they to learn the limits?
     
  18. Posaune

    Posaune sliding Skier

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    On orcas there are not tail spots, but the "saddle patch" by their dorsal fins is unique. I used an online photo collection of local orca pod members to identify an animal that swam under the bow of our sailboat on the Salish Sea (that's the inland waters, including Puget Sound, of coastal WA and B.C.) a few years ago. His nickname was "Cappuccino."
     
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  19. Bad Bob

    Bad Bob old n' slow Skier

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    A dog's nose print is said to also be unique to a single dog, their fingerprint.
     
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  20. Jenny

    Jenny Out on the slopes Skier

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    Aren't zebra stripe patterns unique, too?
     
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