The Hammer and the Feather

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15 Apollo Dave Experiments Feather Galileo Hammer Scott
saintamh
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  • Comments: 4
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  • Added: 26-Sep-06

With the lunar module and a mountain as a backdrop, David Scott recreates Galileo's famous gravity experiment in a low-gravity vacuum by letting a hammer and falcon's feather fall to the ground.

Source: http://www.hq.nasa.gov/alsj/a15/video15.html

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The Hammer and the Feather

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  • The feather is ...

    The feather is bouncing when hits the ground! That means that its much heavier and its not a real feather. A heavier object will be less influenced by the air friction. You can try this by using a hammer and a haircomb. Dropp them from the same height on a sandy soil and you will have exactly the same effect.

    By nfexp [Affiliate User] 1219325871 Reply Spam Moderate Up Moderate Down
    • No, No, NO!

      Sheesh, 1. it bounces because the Moon's gravity is not as great as on Earth. 2. It bounces because its structure is flexible. 3. It bounces because there is no air to slow its acceleration and it strikes the Moon's surface with greater force.

      By milepile 1226287140 Reply Spam Moderate Up Moderate Down
  • FAKE FAKE FAKE ...

    FAKE FAKE FAKE NEVER WENT THERE

    By uninspired123 [Affiliate User] 1218467564 Reply Spam Moderate Up Moderate Down
  • qe pavada este ...

    qe pavada este vidceo
    es una cagada
    king kong anda a cagar

    By sakaadoo [Affiliate User] 1213794267 Reply Spam Moderate Up Moderate Down
  • This is true. But ...

    This is true. But there's no air on the moon, which is what were focusing on here...

    By thehoaxbuster [Affiliate User] 1213208179 Reply Spam Moderate Up Moderate Down
  • Not all objects ...

    Not all objects fall at the same speed. Only in vacuums is that true. The air is too much, ofcourse if you drop 2 cars it doesnt matter but if you drop a ball with the weight of a feather and a heavy one out of lead they will not land at the same time.

    By lohb [Affiliate User] 1212725465 Reply Spam Moderate Up Moderate Down
  • Oh got it. You ...

    Oh got it. You kinda worried me there.

    By thehoaxbuster [Affiliate User] 1202334424 Reply Spam Moderate Up Moderate Down
  • "Why? It is a well ...

    "Why? It is a well known fact that all objects fall at the same speed. Especially in a vacuum."
    It was a joke. I know that F/m = a, don't worry.

    By smaakjeks [Affiliate User] 1202199075 Reply Spam Moderate Up Moderate Down
  • Why? It is a well ...

    Why? It is a well known fact that all objects fall at the same speed. Especially in a vacuum.

    By thehoaxbuster [Affiliate User] 1202193269 Reply Spam Moderate Up Moderate Down
  • Well I'll be darned ...

    Well I'll be darned!

    I bet everyone was holding their breath. =P

    By smaakjeks [Affiliate User] 1202085966 Reply Spam Moderate Up Moderate Down
  • I sent this video ...

    I sent this video to my science teacher for an assignment about Galileo, Sir Isaac Newton, and Aristotle.

    By thehoaxbuster [Affiliate User] 1202061195 Reply Spam Moderate Up Moderate Down
  • You think I'll find ...

    You think I'll find what does?

    By Rhubba [Affiliate User] 1191407157 Reply Spam Moderate Up Moderate Down
  • I think you'll find ...

    I think you'll find it does!

    By gp19780 [Affiliate User] 1191404489 Reply Spam Moderate Up Moderate Down
  • Basic physics that ...

    Basic physics that Galileo discovered...all objects, no matter what they weigh, all fall at the same rate of speed relative to the gravity of the world. The only reason we think feathers fall slower on the Earth is because air resistance gets in the way.

    Try this experiment: Roll up a piece of paper into a ball roughly the same size as a baseball and then drop it and the baseball at the same time: They hit the ground together despite the difference in weight.

    By Rhubba [Affiliate User] 1191400327 Reply Spam Moderate Up Moderate Down
  • Erm no...that ...

    Erm no...that doesn't happen at all!

    By Rhubba [Affiliate User] 1191400170 Reply Spam Moderate Up Moderate Down
  • the footage is ...

    the footage is grainy because it was 1971!!!! can ya tell just just when high definition broadcasting was invented? maybe in the late 1990's? not only that the broadcast waves had to travel 238,857 miles which is 30 times the diameter of earth!!

    By UpsilonGamma [Affiliate User] 1187396557 Reply Spam Moderate Up Moderate Down
  • Lighter=less mass.. ...

    Lighter=less mass...B=mg but g=B/m u=1/2gt2,...g=acceleration is always stable on a planet...9,81 m/s2 on earth, 1,635 m/s2 on moon.

    By Vesalious79 [Affiliate User] 1183814487 Reply Spam Moderate Up Moderate Down
  • Firstly Iam not a ...

    Firstly Iam not a hoax believer or conspiracy doubter.
    Did you notice just as he drops the hammer & feather he stands completely still arms level, even after they land for about two seconds, perhaps any movement would be noticable if the tape was slowed down?

    By gp19780 [Affiliate User] 1183048480 Reply Spam Moderate Up Moderate Down
  • and why is a ...

    and why is a feather (which is light to begin with) suddenly become as heavy or at least come under the same sustained downward accelleration (gravity) as a hammer when the feather is even lighter on the moons surface (1/6th earth weight remember?)?..lol

    By imnazhole [Affiliate User] 1182111028 Reply Spam Moderate Up Moderate Down
  • Maybe, but the moon ...

    Maybe, but the moon surface is 250 degrees celcius, what did gallaleo say about a feather being exposed to 250 degree heat and not evaporating??? and didnt the delicate feather freeze up in the 250 degrees below zero shade??

    By imnazhole [Affiliate User] 1182110808 Reply Spam Moderate Up Moderate Down
  • The objects were ...

    The objects were obviously tethered to the ground by rubber bands. Kidding. We WENT to the moon--and using limited technology! The rest of the world couldn't get there if a "moon train" left for the lunar surface every hour on the half-hour: They're too busy being socialists. Ok, ok, no foul comments...I'm playing the role of the ugly American. Kidding. We still went!

    By Evelsbro [Affiliate User] 1181430860 Reply Spam Moderate Up Moderate Down
  • utter crap! why is ...

    utter crap! why is the footage so grainy? there is no reason why it shouldn't be as clear as a bell. totaly bogus. just hollywood doing what it does best, making movies & pedeling dreams in the half light of the moon surface in arizona.

    By frillington [Affiliate User] 1180955879 Reply Spam Moderate Up Moderate Down
  • Galileo Galilei had ...

    Galileo Galilei had only the Spanish Inquisition to make his life a misery, Buzz Aldrin n' friends must face the collective-ignorance of this entire planet !
    Keep Smiling.

    By JobbeLoppe [Affiliate User] 1178896562 Reply Spam Moderate Up Moderate Down
  • the hammer and the ...

    the hammer and the feather with weight :)

    By dorataro [Affiliate User] 1178621070 Reply Spam Moderate Up Moderate Down
  • It wasnt a brick it ...

    It wasnt a brick it was lead

    By aabbccddefgh [Affiliate User] 1177784049 Reply Spam Moderate Up Moderate Down
  • its not fake!

    its not fake!

    By Lil4znBaller [Affiliate User] 1173642944 Reply Spam Moderate Up Moderate Down
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