Astronomy & Space - September 2007

where do you put cross hairs in convex lenses? and...why can't you put them in concave lenses?

2007-09-25 15:53:43 · 3 answers · asked by Anonymous

It is required for heavy elements to form. Where is the signature or location of the source of the explosion?

2007-09-25 15:28:18 · 7 answers · asked by photonicboom 1

2007-09-25 15:12:18 · 2 answers · asked by Anonymous

2007-09-25 14:17:25 · 20 answers · asked by Shaz S 1

Please help ( : I would greatly appriciate it.

2007-09-25 14:01:41 · 8 answers · asked by Anonymous

It's another question for my science homework!

You will be forever loved if u answer this! lol <3

2007-09-25 13:54:11 · 12 answers · asked by Malloy. 1

explain the big bang to me... Im haveing a hard time with this. Please all the info i can get.. ALL FACTS

if you could put it in outline form..i like it better. tHANKSS so muchh

2007-09-25 12:53:48 · 8 answers · asked by Sun.Sand.Surf92 2

1. What is the angular length of Big Dipper?
2. What is the angular height of Big Dipper above horizon?
3. What is the angular separation between Big Dipper's front stars and the North Star?
4. What is the angular height of Polaris above horizon?

2007-09-25 11:40:48 · 2 answers · asked by Anonymous

WTF!

2007-09-25 11:37:38 · 8 answers · asked by xkatstroficx 2

i need to know for a project...... i just need a list of the stars

2007-09-25 11:14:55 · 4 answers · asked by Ashlee C 1

What Happened to cause the earth to become layered?
Where do scientists think the heat in the early earth came from?
Links are appreciated. Thanks.

2007-09-25 11:11:11 · 7 answers · asked by HELP! 3

Its all gone quiet...has anyone heard the results since the scientists visited the hole?

2007-09-25 11:00:53 · 8 answers · asked by Anonymous

Would ther be a way to make it feasible?

2007-09-25 10:55:55 · 4 answers · asked by misoma5 7

Basically, the Big Bang theory tells that in the beginning of the universes creation it was extremely dense. Whats puts the bang in the Big Bang theory is that it explodes and expands infinitively outwards, which is what we call inflation. The theory supposedly explains how the universe was created.

What doesn't make sense is that the Big Bang theory is supposedly back by the theory of general relativity. In the theory of general relativity, gravity is explained. Basically its like holding a towel(space) stretched and placing an orange(mass) on the towel. The indent the orange makes on the towel is like a mass' effect on space, which the indent is what makes gravity, gravity. Its why massive objects, such as planets, have gravity.

Read on...

2007-09-25 10:43:13 · 11 answers · asked by Anonymous

one of the headings i have to fill in are: conjunction with other planets./.....what does that mean?

2007-09-25 10:37:30 · 2 answers · asked by Anonymous

2007-09-25 10:36:20 · 7 answers · asked by roan 2

Can you please answer anything you can about it in like 7th grade form. Thanks!

2007-09-25 10:35:51 · 4 answers · asked by Anonymous

what is the inner structure of the Earth? Jupiter? Neptune?

2007-09-25 10:11:20 · 1 answers · asked by Anonymous

The chances are extremely slim for an asteroid threat.
You've seen the movies where our idea was to land on asteriod, drill it, and plant a nuclear weapon to break it into peices.
But let's be realistic...it's already difficult to land on the moon. And it's not even a fast-moving rock that's headed towards earth.

So what would we do?

2007-09-25 10:04:00 · 11 answers · asked by Jerry H 5

Can they detect heat from space satellites or does the atmosphere block specific heat signals like lifeforms?

If my satellite TV goes off during a storm does that mean the worlds most powerful satellites can also not see through?

How large would a storm have to be for satellites to be blocked?

Is it true that satellites can zoom in visually so far they can read the date of a penny on the road?

Since places like NASA have to launch all the satellites is there a listing of everyone who owns a satellite and of what type it is, or what it is used for?

2007-09-25 09:59:17 · 3 answers · asked by Silly BaBy505 1

Serious answers only please, nobody tell me to "jump in one and tell me what you find out".

I've always been fascinated by black holes, but could you go in to one and somehow jettison yourself back out? Or even better, make it through the singularity and come out in another universe? What obstacles would you be facing and how could you overcome them?

I realize this is all impossible but it's purely theoretical for me. I read a book about a group of people who made it through a black hole and came out in another dimension

2007-09-25 09:40:42 · 16 answers · asked by Anonymous

the one thing i cant find.please help

2007-09-25 09:36:35 · 3 answers · asked by britt 1

please hurrryy!

2007-09-25 09:34:34 · 10 answers · asked by dancinn4lifee_07 1

2007-09-25 08:56:09 · 15 answers · asked by tina b 1

alright, here's my question

A----------------------------------- B

person a is 10,000 light years away from person b. person a sends a signal to person b that reaches him instantly. why is this not possible?

2007-09-25 06:57:56 · 22 answers · asked by fleabis 2

what cause the sun to set and what cause rise

2007-09-25 06:29:02 · 11 answers · asked by blaze w 1

It is good they are trying to privatize the space industry, but can you actually built a robot for 20 millions dollars? to go to the moon

Anything else that you might think

2007-09-25 06:20:04 · 6 answers · asked by Anonymous

Lately I have been thinking a lot about planets and how large do they need to be, not to mention how far does planet need to be in order for it to be like Earth. Mainly I want to know how far and how big a planet need to be to be habitable, especially if the star is as big as the one called Sirius, or nearly as big. I heard today that the Earth's equator is about 24,901.55 miles, and the Sun's diameter is equal to 109 Earth's)

2007-09-25 05:37:23 · 4 answers · asked by Anonymous

find the magnitude of the gravitational force a 66.6 kg person would experience while standing on the surface of Earth with a mass of 5.98x10^24 kg and a radius of 6.37 x 10^6m. The universal gravitational constant is 6.673x10^-11 N*m^2/kg^2. Answer in units of N.

Find the magnitude of the gravitational force on Mars, with a a mass of 6.34x10^23 kg and a radius of 3.43x10^6m. answer in units of N.

Find the magnitude of the gravitational force on pluto with a mass of 1.32x10^22 kg and a radius of 1.15x10^6m. Answer in units of N.

2007-09-25 05:36:47 · 1 answers · asked by yoyoyoyoyoyo 2

i wana see more color pictures, why didn't they send more color pictures from mars? it doesn't make any sense
is it because of the huge data they have to send and Black and white takes much less data space?

2007-09-25 05:06:02 · 9 answers · asked by Anonymous