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If humans only live once and the moon is so amazing to look at, how come after all these years and after all the science it's not easier to go to the moon? i always fantasize it should be as easy as riding a bus. wouldn't that be great? where would u like to go for a buck twenty five?

2007-02-05 10:38:14 · 7 answers · asked by la virgen 2 in Science & Mathematics Astronomy & Space

7 answers

You have a good imagination. I do too but mine's more "down to earth".
.
Oh, is the buck twenty five for one way or round trip? Pretty good deal either way.
.

2007-02-05 10:50:22 · answer #1 · answered by J T 6 · 0 1

I thought I told you *I* got the kids this weekend! Quit playing games with me!

<<>>

But to answer your question, the reason humans cannot easily go to the moon is that it takes a truly stupendous amount of energy.

The Saturn V rocket (the largest ever launched) which sent the Apollo astronauts to the moon had a takeoff weight of more than 6,700,000 pounds, approximately 90% of which was fuel.

That's a lot of fuel.

But allow me to do some mostly pointless calculations. first, assuming an average human weight (m) of 86 kilograms, and the escape velocity of the earth (v_e) to be 11,200 meters per second, and using the formula for kinetic energy:
E_k = (1/2) * m * v_e^2
then the net amount of energy required to get to the moon is roughly: 5,393,920,000 joules, or about 1500 kilowatt hours of electricity.

This is about as much energy as a large house uses in a month, not necessarily an unreasonable amount of energy. But at present the only method of getting to the moon is by rocket, and rockets are certainly the *least* efficient method of travel ever invented, in terms of both cost and actual fuel and energy usage. So unless you are prepared to shell out a few billion dollars for a purpose built rocket.......

On the other hand, there are a huge number of people and companies developing new technologies and methods to make space travel cheaper. And it is encouraging to hope that manned space flight will become affordable to the average person, at least in this lifetime.(If we don't manage to bomb ourselves back into the stone age first.) So you should definitely keep dreaming, or better yet, get a degree in engineering (like I am) and actually start working on the problem!

Who ever said that rocket science has to be difficult?

Good luck!
~your ex husband Donkey Hotei

2007-02-05 20:12:11 · answer #2 · answered by WOMBAT, Manliness Expert 7 · 0 0

Here are some things that haven't changed since the original 6 moon landings:

-- the moon is still 238,000 miles away (on average)
-- it's still incredibly expensive per pound to lift anything off the earth into orbit, and even more expensive to get things out of earth orbit and on to the moon
-- space is still space...no rest stops, no gas stations, just a bunch of nothing. If your oxygen tank leaks, your ship gets a hole, or any number of other things, you die.

None of those things are really *technical* obstacles, they're *cost* obstacles. We could, right now, today, build a passenger space ship that could carry 20 people to the moon, let them stay for a week, and bring them back. It would have multiple redundant backup systems, carry lots of extra air, water, and food, and be very safe. The most dangerous part would be liftoff (still about a 1 in 20 chance of catastrophic failure of the rocket booster at liftoff). Why don't we do it? Because it would cost many, many billions of dollars to build, and whomever ran it would have to charge hundreds of millions of dollars per passenger to ever hope to break even. At that price, they couldn't even fill one trip with passengers, nobody can afford it.

That's why -- it costs a lot. That's really the only thing holding us back.

2007-02-05 18:50:51 · answer #3 · answered by Anonymous · 1 0

If you think it would be wonderful to go to the Moon, try this:

Place a hunk of big sticky tape across your mouth.
Next...
Pinch your nose closed.
Next...
Count to 5,000 in your head.
Satisfied?
That is what it would be like.
No air on the Moon.

Next,
Open the Ice Box and take all the ice cubes inside and pour
them into your shorts...
Satisfied?
There is no heat on the MOON.

Okay:
Now go take everything you posess and stick it in a closet.
Climb into the closet with all that stuff and stay there for 90
to 120 days. Do everything that you must do (including that)
inside that closet, for 120 days. Speak only into a microphone
to people on the other side of the world who cannot see you,
and listen to them in a tiny little ear thing that is jammed into your ear. Everything you eat or drink must come in a little tiny plastic
pouch that is heated in a microwave oven.

No restaurants.
No Fishing.
No Pubs.
No Beer.
No Wine.
No Smoking.
No Shopping.
No Sunday Drives in the family car.
No visitors.
No friends near-by.
No houses.
No buildings.
No trees.
No flowers.
No rivers.
No showers.
No baths.
No swimming.
ETC., ETC., ETC.

2007-02-05 18:56:32 · answer #4 · answered by zahbudar 6 · 0 1

Because even with an imporvement in technology, Humans still need to be in optimal condition. It also costs billions for one run of 8 or 9 people to go up. If you don't have the money, they won't waste theirs to send you up. They spend their money on thing like research and other useful things. If you have 400 million, you might get to go up with a crew.

2007-02-05 19:56:22 · answer #5 · answered by Anonymous · 0 0

Oh I DO sincerly wish ALL HUMANS would go to the moon and never come back...

I'll kick in a few $ for that one...

2007-02-05 18:47:39 · answer #6 · answered by darchangel_3 5 · 0 0

good thinking may be sometimes in the future it will be possible who knows as it is everybodies dream to go on a moon

2007-02-09 12:55:23 · answer #7 · answered by monalisa three 5 · 0 0

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