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More amazing science, technology, arts, anything interesting facts!!

  • 24-09-2016 9:19pm
    #1
    Registered Users, Registered Users 2 Posts: 27,564 ✭✭✭✭


    Fact 1: Carbonic anhydrase is an enzyme that converts carbon dioxide to bicarbonate and vice versa. This reaction is one of the most important reactions in the body because without it, carbon dioxide would build up in the blood and make it more acidic. This reaction needs to happen fast and as a result one of the fastest enzymes known to man evolved.

    The enzyme can convert CO2 back to bicarbonate at low CO2 levels too. If levels increase then it converts the bicarbonate back to CO2 thus conserving adequate pH.

    What's amazing about this is the speed it works at. Some estimates say this enzyme can convert a million molecules a second.

    If you want an example of how fast this is open a bottle of carbonated water and see how long it takes for the fizz (CO2) to go away. Now drink it and notice the fizzing (CO2) goes away instantly. This is because your salvia contains carbonic anhydrase enzymes.


    Fact 2: Another biological fact is about the amazing bunchberry dogwood plant exhibits one of the highest accelerations of any biological organism on Earth.. As the flowers burst open, the petals quickly separate and flip back, exposing the stamens. During the first 0.3 milliseconds, the stamens accelerate at up to 24,000 m·s*-2., which is 2400 times the acceleration of gravity and approximately 800 times the force astronauts experience during take-off.

    Fact 3: NASA's curiosity rover signs happy birthday to itself every year on its bday :)


Comments

  • Registered Users, Registered Users 2 Posts: 3,862 ✭✭✭mikhail


    steddyeddy wrote: »
    During the first 0.3 milliseconds, the stamens accelerate at up to 24,000 m/s, which is 2400 times the acceleration of gravity and approximately 800 times the force astronauts experience during take-off.
    m/s/s ?


  • Banned (with Prison Access) Posts: 1,121 ✭✭✭ClovenHoof


    Saturday night you post this?

    Is the PornHub server down?


  • Registered Users, Registered Users 2 Posts: 22,662 ✭✭✭✭Esel


    mikhail wrote: »
    m/s/s ?

    In the same spirit: More; sings?

    Not your ornery onager



  • Registered Users, Registered Users 2 Posts: 27,564 ✭✭✭✭steddyeddy


    mikhail wrote: »
    m/s/s ?

    Yep or m·s*-2.


  • Closed Accounts Posts: 32,688 ✭✭✭✭ytpe2r5bxkn0c1


    And acceleration is not measured as speed.


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  • Closed Accounts Posts: 11,812 ✭✭✭✭evolving_doors


    It's redundant to say "no other choice" or "no other option".

    The 'other' is implied..... you moron.

    Morse amazing science... there was none really, just dots and dashes. It's in Some Mothers Do Have Em' title tune though.


  • Registered Users, Registered Users 2 Posts: 27,564 ✭✭✭✭steddyeddy


    ClovenHoof wrote: »
    Saturday night you post this?

    Is the PornHub server down?

    I hope not. The girlfriend's gone home :)


  • Registered Users, Registered Users 2 Posts: 27,564 ✭✭✭✭steddyeddy


    And acceleration is not measured as speed.

    And enzymes are described in terms of Vmax, Kcat and Kcat/Km. Sorry long day :O


  • Registered Users Posts: 173 ✭✭david65


    Gebgbegb wrote: »
    It's redundant to say "no other choice" or "no other option".

    The 'other' is implied..... you moron.

    Morse amazing science... there was none really, just dots and dashes. It's in Some Mothers Do Have Em' title tune though.

    Inspector Morse signature tune?


  • Closed Accounts Posts: 32,688 ✭✭✭✭ytpe2r5bxkn0c1


    The SI unit of weight is not a kilogram, it is a Newton, the kilogram is a unit of mass.


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  • Registered Users, Registered Users 2 Posts: 7,812 ✭✭✭thelad95


    One I learned recently is that McDonald's on Grafton street is one of the few in the world which doesn't have the Golden Arches outside, instead they are silver.


  • Registered Users, Registered Users 2 Posts: 22,662 ✭✭✭✭Esel


    The Archers theme tune.

    Not your ornery onager



  • Banned (with Prison Access) Posts: 1,121 ✭✭✭ClovenHoof


    To be serious. Being an old school electronics geek I still get excited by induction across the two coils of a transformer.


  • Registered Users, Registered Users 2 Posts: 27,564 ✭✭✭✭steddyeddy


    ClovenHoof wrote: »
    To be serious. Being an old school electronics geek I still get excited by induction across the two coils of a transformer.

    Cool. I'd love if you could explain how it works?


  • Closed Accounts Posts: 32,688 ✭✭✭✭ytpe2r5bxkn0c1


    A thimbleful of a neutron star would weigh over 100 million tons


  • Registered Users, Registered Users 2 Posts: 5,734 ✭✭✭CalamariFritti


    mikhail wrote: »
    m/s/s ?

    Isn't this how you write meter per square second? m/s²

    Must look that up btw, that is amazing...


  • Closed Accounts Posts: 32,688 ✭✭✭✭ytpe2r5bxkn0c1


    Isn't this how you write meter per square second? m/s²

    Must look that up btw, that is amazing...

    Metres per second per second. Or metres per second squared. Acceleration. m/s2, m·s−2, m s−2, or m/s/s.


  • Closed Accounts Posts: 7,275 ✭✭✭Your Face


    Ah yeah


  • Closed Accounts Posts: 11,812 ✭✭✭✭evolving_doors


    david65 wrote: »
    Inspector Morse signature tune?

    Also QI too!


  • Registered Users, Registered Users 2 Posts: 26,899 ✭✭✭✭BBDBB


    I totally respect someone else's right to hold their own beliefs about science, as long as they don't try to enforce their beliefs upon others


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  • Closed Accounts Posts: 11,812 ✭✭✭✭evolving_doors


    BBDBB wrote: »
    I totally respect someone else's right to hold their own beliefs about science, as long as they don't try to enforce their beliefs upon others

    ya totally, keep yer fe***n gravity nonsense to yourself mate.


  • Registered Users, Registered Users 2 Posts: 27,564 ✭✭✭✭steddyeddy


    Isn't this how you write meter per square second? m/s²

    Must look that up btw, that is amazing...

    There's a few ways of writing it.


  • Registered Users, Registered Users 2 Posts: 28,921 ✭✭✭✭looksee


    A thimbleful of a neutron star would weigh over 100 million tons

    How would you get neutron star into a thimble? And how would you weigh it?


  • Registered Users, Registered Users 2 Posts: 6,728 ✭✭✭Badly Drunk Boy


    Gebgbegb wrote: »
    ya totally, keep yer fe***n gravity nonsense to yourself mate.
    Has it been scientifically proven yet that magnets are on a par with voodoo dolls?


  • Registered Users, Registered Users 2 Posts: 13,046 ✭✭✭✭bnt


    BBDBB wrote: »
    I totally respect someone else's right to hold their own beliefs about science, as long as they don't try to enforce their beliefs upon others
    I believe that if you dive from the top of a ten story building, head first on to a concrete surface, you will not survive. That's a scientific belief, right? Go ahead and try that, and far be it from me to enforce my "scientism" on to you ... :cool:

    Ye Hypocrites, are these your pranks
    To murder men and gie God thanks?
    Desist for shame, proceed no further
    God won't accept your thanks for murder.

    ―Robert Burns



  • Registered Users, Registered Users 2 Posts: 26,899 ✭✭✭✭BBDBB


    bnt wrote: »
    I believe that if you dive from the top of a ten story building, head first on to a concrete surface, you will not survive. That's a scientific belief, right? Go ahead and try that, and far be it from me to enforce my "scientism" on to you ... :cool:

    Ok, brb


  • Registered Users, Registered Users 2 Posts: 26,899 ✭✭✭✭BBDBB


    You're nearly right, the feckin lift was broken, those ten flights of stairs damn near killed me


  • Registered Users, Registered Users 2 Posts: 22,631 ✭✭✭✭Akrasia


    in order for you to climb those 10 flights of stairs in the 7 minutes between your two posts means you must have been travelling at minimum .1 meters a second, but the exertion of combating earths gravitational acceleration which is approx 10ms, means that you would likely be too tired to set up your laptop to report back on your near death experience, so I call BS on your story.


  • Closed Accounts Posts: 3,006 ✭✭✭_Tombstone_


    women cheat in 85% of relationships


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  • Registered Users, Registered Users 2 Posts: 26,899 ✭✭✭✭BBDBB


    two laptops, both already set up, though I did take my time opening the front door as the lock sticks a bit


  • Registered Users, Registered Users 2 Posts: 35,851 ✭✭✭✭Hotblack Desiato


    Metres per second per second. Or metres per second squared. Acceleration. m/s2, m·s−2, m s−2, or m/s/s.

    [latex]ms^{-2}[/latex] ;)

    In Cavan there was a great fire / Judge McCarthy was sent to inquire / It would be a shame / If the nuns were to blame / So it had to be caused by a wire.



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