Feather & Hammer Drop on Moon

Here's the famous footage of the Apollo 15 astronaut that dropped a hammer & feather on the moon to prove Galileo's theory that in the absence of atmosphere, objects will fall at the same rate regardless of mass.

There has been much debate over the years on whether this footage is real, or was faked in a studio. Decide for yourself!

Update: Here's a link to the NASA site, of some photos taken by the LRO (Lunar Reconnaissance Orbiter), of various Apollo mission landing sites on the Moon: http://tr.im/LRO_apollosites

Of course, it will probably be argued that these can be faked too.

Category:

Howto & Style

Tags:

• moon
• gravity
• atmosphere
• nscience
• apollo
• hammer
• feather
• nasa

[shannonward86]

holy crap, some of these comments are so stupid. Gravity isnt a speed, its an acceleration. on earth is is 9.8m/s/s, on the moon it is 1.62m/s/s. whether this is photoshopped or not, the theory is correct, in the absence of air resistance (obviously the feather has a lot more resistance per unit mass than a hammer) then two objects dropped from the same height will accellerate at the same rate and hit the ground at the same time

For those saying there is no gravity, you are an idiot, that is all

[Imakeplanesboom]

@onelastscar66 There's wind resistance on Earth. Dehhhhh

[AndIamOuttaHere]

@MrFibertiger WUBUBUBUUUUUUBUBUUBUBUBU

[MrFibertiger]

@vazza45 isn't it supposed to be doornail or doormat or something? never heard doorstep.

[nobody27447]

@MrFibertiger MrFibertiger =fake, gay, retarded.

[MrFibertiger]

the moon landing=fake and gay

[zap54312]

And then they crabwalk away

[Qw3rtypop]

@PaltryFreD

Quite right, most of the equations are pretty similar, but there are some obvious differences, e.g. while there's +ve and -ve charge, there's only regular mass and so no 'antigravity'. Also while we know the mechanisms for interaction with the electromagnetic force (virtual photons) we don't know how it works for gravity. We think there's another virtual particle and we call them gravitons but we're not sure. Gravity doesn't really fit with the other forces you see.

[Qw3rtypop]

@PaltryFreD

Yeah, most of the equations are pretty similar, but there are some obvious differences, e.g. while there's +ve and -ve charge, there's only regular mass and so no 'antigravity'. Also while we know the mechanisms for interaction with the electromagnetic force (virtual photons) we don't know how it works for gravity. We think there's another virtual particle and we call them gravitons but we're not sure. Gravity doesn't really fit with the other forces you see.

[PaltryFreD]

@Qw3rtypop

Doesn't gravity behave very similarly to electromagnetic forces? gravitational Force = (Mass1 x Mass2 x gravitational constant)/radius*2, whereas electromagnetic force = (charge1 x charge2 x coulomb's constant)/radius*2. They're both inversely proportional to the square of the radius and directly proportional to their charges/masses.

[maimai1311]

that a lot of dust produce by the feather when drop than the hammer, why?