G-Force, Jerk, and Passing Out In A Centrifuge

Tom Scott

8mn visningar1 142

    Thanks to the Starrship team for arranging this! I'm also over on their channel, flying with the Blades: seprom.info/clone/video/zLqOZZNpl3-k2qM.html • At the Royal Air Force training centrifuge in Farnbrough, pilots learn how to avoid G-LOC: g-induced loss of consciousness. Let's talk about g-force, about jerk, and about how to keep circulation flowing to your brain.
    * Isn't 3.6g a really low g-tolerance? *
    Yep. Turns out I would not qualify to be a fighter pilot. The average range for g-tolerance is 4-6; no-one was expecting me to pass out. The centrifuge team do not deliberately try to G-LOC people! To be fair, though, I'd done a few earlier runs with only minor effects.
    * What g was the RAF person at the start pulling? *
    That's Marcus, from the Starrship team, and he was successfully pulling 6.5g with the help of g-trousers: they plug into a compressed air source in the plane (and in the centrifuge) and act as a lower-body tourniquet to keep the blood up top. They are very effective.
    * Why did you shake and shudder when regaining consciousness? *
    Those are called "myoclonic convulsions", which is a fancy medical term for "muscle jerks", and they're a common side effect of recovering from G-LOC.
    * What did it feel like? *
    I'll answer this in more detail in a video over on the Matt and Tom channel soon, but in short: I don't remember it. I was doing the breathing maneuver, then everything was wobbly, then we were stopped!
    * Is this a sponsored video? *
    No: the RAF and Starrship had no editorial control over this, and no money changed hands. Obviously, though, they gave me a spin in the centrifuge, and I'm collaborating with them over on their channel too!

    The RAF Centre of Aviation Medicine, the Starrship team, and the folks at Qinetiq.
    Instagram: starrshiphope
    Facebook: starrshiphope/
    Twitter: starrshiphope

    I'm at tomscott.com
    on Twitter at tomscott
    on Facebook at tomscott
    and on Snapchat and Instagram as tomscottgo

    Publicerades den 2 år sedan


    1. Tom Scott

      If you have questions (what did it feel like? why did you convulse? isn't 3.6g a really low tolerance?) pull down the description, I've answered a few there! And if you see someone ask a question that's in the description, please point them there.

      1. Berta Nielsen

        i tought you was dead

      2. Sascha Veraguth

        Das wäre

      3. Fake step brother Albus Dumbledore Doge

        B L I M E Y

      4. Broad D

        @Tankie Guy I think everybody has experienced 5gs of forces, that's how much a roler coaster is...

    2. Michael Barnes

      There’s more g force on the smiler and I went on that when I was 12 grow up Tom 😂😭😂🤡

    3. Ervinas E

      You know what is a real challenge? Real challenge is not to laugh at the comments at 1am.

    4. William Cedeno


    5. Saadi Arsalan

      bro that was so close!

    6. Scott FitzPatrick

      If g force pushes the blood towards the legs and a s result causes unconsciousness, why not reposition the pilot so it pushes blood towards the head.

    7. Sputnik

      romain gorsjean had a crash with F1 car and hit the wall with 53G kimi raikkonen hit the wall with 43G they both got out of the car with minor injuries.

    8. Vavilon

      Какой британский акцент.!почему я его слышу.?

    9. Wuppy Yadom

      They forget to put the special suit to retain the gforce, rip to this guy

    10. PenileAugmentation

      Could orienting a pilot differently (as opposed to a sitting position) work to make G-LOC harder to get to? Upside down seems like a great recipe for a stroke or something, but maybe laying down makes more sense for someone who needs to endure high Gs? Keeping the head close to the same level as the rest of the body. Probably not worth it in most situations I suspect.

    11. Samin Khan

      SWAT KATS!

    12. Samuel Hopely

      Tom passed out at a little over 3.5 G, which may seem silly or wimpy. Let me assure you that stronger and fitter men have withstood less. Vertical G force is absolutely soul crushing. Even F-16 pilots pulling 9G sit in reclining chairs that mean they only experience about 6-7 G along the vertical axis. If you're ever lucky enough to ride in a high performance aircraft, just remember to go into the experience with humility, because you'll certainly come out of it with some.

    13. Patrick de Bie

      The instructor in the middle goes like: You spin me right round baby right round, like a record baby right round, round round.... 🎶

    14. Ash Navarrete

      Did someone say jerk?

    15. tyuki kiquinchi

      brain: SYSTEM RECALIBRATION 10 9 8 7 6 5 4 3 2 1 SHAKE........... CALIBRATION COMPLETED



    17. Elbisrever

      I think Grossjean holds the new record of peak G-force now.


      HIs face/expression is scarier than the machine itself...

    19. CrediblePython7

      Guess I’m playing ascension now

    20. Tohit Kumar

      Started Feeling nausea by just watching this video

    21. TWE3T

      nah it’s that thing from bo1 ascension in zombies

    22. Hannele Terenius

      this is way less harrowing with the sound on, i should have watched this before the park bench episode!

    23. Trippa Snippa

      3:33 how it feels waking up after sleeping in class

      1. Call me Jest

        B L I M E Y

    24. Atsuro Kawai

      It could be worse than that if you ascend the aircraft upside down

    25. V R LDF

      I just like to think how much of a flex this is. - I could lift 35 pounds yesterday. - That's cool. I died yesterday.

    26. ᴅʀ. ᴅᴊᴇɴᴛ

      I thought they were like putting an actual jerk in a torture chamber or something

    27. Babai Chowdhury

      Meanwhile fighter pilots pull off 9Gs

    28. Maya Hodzen

      The certain harbor commercially like because lumber analogously play but a terrible bucket. thoughtful, fancy cross

    29. NIELS

      Nice g-spot my dude!

    30. Kas

      The shitty breathing caused him to pass out

    31. The poopshitters

      3:29 i started laughing so hard

    32. The Sprinkler Guy

      25g... Isn't that like at a ton+ on the average person? Btw I'm Lmao soo hard you looked so scared/confused

    33. A single Banana

      Imagine bacteria have to withstand 8000 g for 15 minutes in a typical centrifuge. RIP.

    34. Mr Torque

      Does this can kill a person??😟

      1. El Demente Sexual


    35. Itachi Uchiha

      3:23 OG Loc

    36. CR505

      “As far as they’re allowed to push a civilian.” Please! You’re pulling G’s... get over yourself.

    37. untitled untitled

      only 3,5 G? **vegeta laugh**

    38. Aaron Dunn

      ...you call that AGSM? Yikes...warm-up G loads should be at 5 G. Peak centrifuge forces to practice proper AGSM lies between 7.5-9.0 G. (KBR Centrifuge -- San Antonio, TX)

    39. TyroZenavia Gaming

      Sriwijaya planes hit the sea at 600+ km/h about 10G force. Maybe passenger lost consciousness before that happen. Condolences to the family.


      3:36 ....After you complete pissing

    41. Naseer Ahmed

      Everyone claims to be a G until they sit in the g

    42. Ben Ben

      welcome to bot'um gear

    43. christopper jimenez

      Is folagor03 jajajjaja

    44. Prime OGgaming

      This little maneuver is gonna cost us 5 seconds of unconsciousness

    45. Locxreza Locxreza

      Boards it like a champ :human body can take G's After the test : B L I M E Y

    46. Sqonek

      Meanwhile a random gta character gets in an aircraft and pulls a tripple looping

    47. Alyceo Perez

      your voice say 35 but your body say 15... trick one you are..

    48. Riley Arsenault

      1:57 when you leave her house an let off that fart

    49. James Lonergan

      I'm no math genius, but it seems to me that some kind of opposite force to the Gs, like lateral thrust (jet propulsion from the sides of the aircraft)

    50. LILSNAKEwrld

      ahh new update from nvidia ?

    51. kim phi

      The steep love syntactically flood because insulation correlatively rhyme following a complete toad. flat, hesitant smash

    52. George Marriott

      Romain Grosjean sustained 56G in his crash.

    53. Rishav Masih

      The brief moment of euphoria that you experience when you're just about to pass out from the g force. No amount of dope can get you there.

    54. Smitha Jayanarayanan


    55. Kyle Broflovski


    56. It'sDominika

      1:27 ''maximum 4 persons'' Me: *makes sense*

    57. Panzerkampfwagen VI Tiger I

      2:50 AH

    58. Panzerkampfwagen VI Tiger I

      F1 drivers experience around 3-5 Gs average, peaks are around 7.

    59. purpl3grape studios

      Random thought: would cocaine help or be of detriment in withstanding higher g forces than without?

    60. purpl3grape studios

      As someone who has issues with their sleep, this is I what I need to fall asleep.

    61. Phil Rogers

      Can someone explain how there can be a rate of change of Jerk? It's like a rate of change of change!

    62. Alexander McCabe

      i hate this so much

    63. peter gee

      no thanks

    64. Ivy Woodward

      i feel worst for the person in the middle controlling it

    65. SquiSqai


    66. Kachongui Kach

      I've arrived here from Lazlos's 9G video.

    67. Annie Kelly

      The milky steven kelly need because skate definitely rinse versus a slimy fish. truthful, complete mass

    68. Anthony Lewis

      Bootloader activated, please wait.

    69. davidbrennan5

      3.6 is for kids.

    70. Joshua Muller

      Why is the title of this video my routine on a lonely night?

    71. Hotwheels Racing -Bill Gould

      Fly upside down to prevent passing out

    72. Янус Полуэктович

      Ай да молодцы...(герои) ...весело...

    73. ThatIronsideGuy

      Then there's Nvidia Geforce

    74. pterror

      Tom Scott experiencing bruh moment machine.

    75. Slobodan Reka

      "Blimey, I lost everything there." (Janitor sighs and picks up mop)

    76. Zeun

      Wtf bro

    77. Hisham Hannoun

      I am convinced that Tom is the leader of the Lizard People

    78. kenshinichi

      1000 jerk easy

    79. Jason Mondragon

      I thought they were making a jerk pass out in that machine

    80. NeonDystopia†

      Tom you need to wash your mouth with soap, saying "jerk" so many times don't belong to good manners.

    81. fotolove79

      I would puke!🤢🤮

    82. 3rd Dayproductions

      Dies for 3 seconds .. B L I M E Y

    83. JC

      Let’s give it up for the dude sitting in the middle while looking at screens and controlling this machine!

    84. Mini Keeneoh

      Tom: PAH PAH PAH *turns to blob and sees his life flesh before his eyes* BLIMEY

    85. Sophia Emma.

      The aspiring view fifthly interest because connection essentially encourage over a heady icebreaker. four frail, deafening watch

    86. matthew chang

      Sounds like fun

    87. Sharon Sanchez

      The probable divorced wessely rush because north korea regrettably rob about a useful foundation. political, vague shield

    88. datGuy0309

      It’s actually called snap crackle and pop

    89. Shawn Elliott

      I have a mild case of postural orthostatic hypotension, which means my body doesn't automatically adjust my blood pressure and blood flow correctly when I'm upright. I wonder if I would do worse at this test than Tom did, or better due to the practice I have keeping myself from feeling lightheaded just standing around.

    90. le derp

      so... what jerk+snap range is ideal for humans? what range is sustainable? have we tried putting bugs in centrifuges?

    91. Hello 2021

      is there any magic tricks that the instructor used to not feel dizzy when spinning?

    92. Mike Cochrane

      A moment of respect for F1 drivers who for 2h every race experience up to 3g corner and 5g braking forces several times a lap. And stay focused enough to not just drive a car but RACE it. And in terms of jerk forces: lots of research in racing too. Drivers hitting barriers and experiencing 50+g in accidents walk away. FIA have g meters in helmets and gloves that monitor drivers and deploy the medical car if it exceeds a certain threshold even if the driver climbs out apparently unharmed.

    93. Jasmine Wright

      Bill and Teds most e excellent adventures

    94. HDIMYB

      .. *why do I know what it's like to pass out like that? I've never done it before..*

    95. Zaid Lacksalastname

      Watching Tom die freaked me out

    96. Zaid Lacksalastname

      _snap, crackle, and pop_ *Blimey*

    97. 勇樹

      B L I M E Y

    98. Yeu Chua


    99. 01 Adrienne Kayana Wistara Lie

      yes i like G-Fuel

    100. Thu Dam