lunar:why double speed?

[space]

When the movies of the astronauts walking and driving the lunar rover are doubled in speed, they look just like they were filmed on Earth and slowed down. This is clearly how the movies were faked....(bill gaysing)

if it is free fall and same altitude

1/2*g*t^2(earth)=1/2*g/6*t`^2(moon)

so.. result is.. t`(moon):t(earth)=root 6:1

root 6 is 2.449489......

it is prove not only kaysing is ilar
but also apollo is must be true!!!!!!!!!!!!!

he`s theory is pseudo-science
(ex> no star in the background,radiation and everything)

How do you think this..?

well... i think everyelse hard to my post because
i`m not good at grammar but thank you read my foolish post

[BertL]

Yep, Kaysing's theories are pretty much completely debunked at this point. Then again, the whole "if you speed it up it looks like Earth" argument is pretty false to begin with; not only does it depend on the interpretation of the (usually biased) observer, some of the astronauts' movements just seems to go too fast to be natural or physically possible (especially clip 2).

[Jason]

The Mythbusters did a great debunking of this idea. They filmed without any special gear, with a wire rig, and on a plane at 1/6th gravity. The plane footage was the closest match for Apollo, in ways that are obvious even to a layman.

[randombloke]

Yeah, the only thing that happens at half-speed on the moon, relative to earth, is falling. Everything else is conducted at the same speed, with allowances for circumstances. Like having a huge rubber pressure suit on and carrying a 'portable' AC unit.

[PhantomWolf]

Jan 5, 2010 7:53:59 GMT -4 randombloke said:

Yeah, the only thing that happens at half-speed on the moon, relative to earth, is falling. Everything else is conducted at the same speed, with allowances for circumstances. Like having a huge rubber pressure suit on and carrying a 'portable' AC unit.

Yes, one thing a lot of people forget (even scientists) is that while "weight" is 1/6 of what it is on Earth, the Mass is still the same which means that it still takes 1N of force to accelerate 1kg by 1m/s. That means that while that 60kg pack might only feel like 10kg, it still takes the same amount of force to move it. Let's see some of our "They moved to slow" CTs run about like spring chickens with 60kg packs on.

[xinacrisp]

Yes, one thing a lot of people forget (even scientists) is that while "weight" is 1/6 of what it is on Earth, the Mass is still the same which means that it still takes 1N of force to accelerate 1kg by 1m/s. That means that while that 60kg pack might only feel like 10kg, it still takes the same amount of force to move it. Let's see some of our "They moved to slow" CTs run about like spring chickens with 60kg packs on.


i dont disagree but i have something to add, the "they move to slow theory" is somewhat debunked by the HB's other theory of the "Space suit was too inflexible for an astronaut to bend down to take the Apollo 17 flag and earth shot" so if the suit were not to flexible how can the astonauts move fast on the surface of the moon???

1 more thing i'm not to good with maths so help me here 60Kgs "feel" like 10Kgs but are still 60Kgs??? is this what you sayng??? i'm not doubting im just confused

[Bob B.]

Jan 25, 2010 19:08:46 GMT -4 @xinacrisp said:

1 more thing i'm not to good with maths so help me here 60Kgs "feel" like 10Kgs but are still 60Kgs??? is this what you sayng??? i'm not doubting im just confused

It’s the difference between mass and weight. Mass is a measure of the amount a matter present while weight is the force that gravity exerts on it. As an object moves from Earth to the Moon, its mass does not change but its weight does. Kilograms is a measure of mass, therefore 60 kg on Earth is 60 kg on the Moon. That same 60 kg mass weighs about 600 Newtons on Earth, but only 100 Newtons on the Moon (where Newtons is a measure of force).

Picking up a mass on the Moon requires only 1/6 as much force as it takes to pick it up on Earth. However, if you were to throw it, you couldn’t throw it any faster on the Moon than you can on Earth. This is because acceleration is a function of force and mass (F=ma). Since the mass doesn’t change, and since your muscles produce the same force on the Moon as they do on Earth, you can’t accelerate the object any faster on the Moon than you can on Earth, even though the object weighs less.

In fact, it would probably be a weird sensation. Since the object weighs so little, you would think you should be able to throw it very fast. But if you were to give it a toss, it would resist the motion just like its heavier counterpart on Earth.

Of course, a thrown object on the Moon will travel farther than it would on Earth, but this is because the weaker lunar gravity pulls it toward the ground more slowly. It is not because the initial velocity is any greater.

[echnaton]

Here is another way to look at it. In 1/6th gravity, you could pick up the back end of a small front wheel drive car by yourself. One lets say that weighs 1100 kilos in earth's gravity. Something most of us could not do on earth. Yet if that car were driving at 30 miles an hour in 1/6th gravity, it would still require the same braking force to stop the car. If it hit a solid brick wall it would do as much damage as if it hit the wall on earth.

[kallewirsch]

Or another way to look at it:
Even in a no gravity environment like the ISS, it will hurt if you hit your thumb with a hammer.

[BertL]

Jan 26, 2010 12:26:38 GMT -4 kallewirsch said:

Or another way to look at it:
Even in a no gravity environment like the ISS, it will hurt if you hit your thumb with a hammer.

Haha, I'm gonna have to remember that.

[PhantomWolf]

Jan 26, 2010 12:26:38 GMT -4 kallewirsch said:

Or another way to look at it:
Even in a no gravity environment like the ISS, it will hurt if you hit your thumb with a hammer.

but apparently electric motors are useless because they will have no friction and thus spin at an infinate speed^*..... (ducks and runs.)

Actually Bob's explaination was perfect to what I was talking about.














^*For those not getting this, lucky you.

[chew]

And guns won't shoot accurately because there is no air to stabilise the spinning bullet and they will just go off in random directions.

...actually read that on a forum a long time ago.

[xinacrisp]

thanks guys, good explanations.

it would still require the same braking force to stop the car

i think this would not be entirely true, it would actually need a bit more braking power cause theres no wind on the moon right???

[PhantomWolf]

Jan 26, 2010 23:06:12 GMT -4 @xinacrisp said:

thanks guys, good explanations.

it would still require the same braking force to stop the car

i think this would not be entirely true, it would actually need a bit more braking power cause theres no wind on the moon right???

I don't think that air resistance features much when it comes to braking, unless you use a chutte or are in a plane.

[Bob B.]

Braking should be worse on the Moon than on Earth. A moving car has the same inertia in both places, but since it weighs less on the Moon, there is less friction between the tires and the ground. Stopping the car over the same braking distance requires the same braking force, but you wouldn't achieve that same force on the Moon because of the car's lighter weight. A different type of braking system would have to be engineered.