Astronomy & Space - May 2007

Why is 1^1=1 2^2=4 3^2=9 4^2=16 in square law?


...TO find, Observed Brightness=Lumnosity/Distance ^2

2007-05-13 12:08:31 · 3 answers · asked by Anonymous

2007-05-13 09:43:21 · 14 answers · asked by Chistia 1

but is an attracting force when it is holding our galaxy together?

2007-05-13 09:30:09 · 3 answers · asked by auralsects69 2

2007-05-13 08:54:22 · 10 answers · asked by Affy 2

A) if the mass of the star were doubled, what effect would this have on the gravitational attraction betwwen the star and its planet? Explain
B) if the distance between the star and the planet were 3 times as great, what effect would this have in their gravitational attraction for each other? explain

2007-05-13 08:39:53 · 4 answers · asked by Anonymous

2007-05-13 07:42:28 · 20 answers · asked by easynow32778 2

For example, when a loft of bread expand, it takes up air space, so if the universe is expanding, it must be taking up space. What is this space that the universe is occupying?

2007-05-13 06:55:59 · 11 answers · asked by MoPleasure4U 4

What is the Occulation Technique and how can it indicate the presence of large extrasolar planets?

2007-05-13 05:35:28 · 2 answers · asked by woutie 2

2007-05-13 04:03:42 · 15 answers · asked by V. Sidu R 1

If my understanding of relativity is correct, which it probably is not, then due to relativistic effects a clock carried by a photon originating at the big bang would now show no time elapsed despite having undertaken a journey of 14 billion years.

2007-05-13 03:56:31 · 5 answers · asked by Anonymous

In Other Words: If you turn around after 20 years (travelling at 2 x the speed of light) and look back at the earth from wherever you are in space, would you see yourself take off from earth?

2007-05-13 03:40:10 · 19 answers · asked by Gerlof 1

2007-05-13 03:33:20 · 8 answers · asked by Gerlof 1

personally i think that its a wrong statement, time will always be there, it will never disappear n it has always existed!

how can scientifics prove that time did'nt exist before BigBang?

this question prevents me from sleeping normally!

2007-05-13 03:32:13 · 17 answers · asked by Mystic healer 4

WHat time is dusk or dawn?

thanks

2007-05-13 02:30:22 · 20 answers · asked by insano_dano 2

2007-05-13 00:09:05 · 12 answers · asked by WEE MAN 3

there is lots of story about it.

2007-05-12 22:40:34 · 9 answers · asked by rich 1

I heard that the star map will no longer be correct after a few years is this true?? Does this have anything to do with the bees?

2007-05-12 22:21:56 · 3 answers · asked by waterzone 4

With PCs, the mainboard needs a cooling fan to cool down the hard drive, CPU etc. What are used with satellites to keep their instruments from overheating or overcooling?

2007-05-12 21:36:27 · 3 answers · asked by Anonymous

and its not always either. sometimes when i look at stars i can see them fine. other times i can look up and see a lot of stars but when i try to look at a specific one it disappears. if i look a little bit away from it, it will reappear. why cant i see it better by looking directly at it?

2007-05-12 21:35:39 · 8 answers · asked by Anonymous

interfering in our developemint (mint missspilled deliberately).

Are we being watched, interfered with, or blessed by the WATCHERS.

(do you deny their existence)

dave

2007-05-12 21:05:00 · 3 answers · asked by dave777 4

Back in the 50's people would say you were crazy if you said "we will break the sound barrier". We did it. When Star Trek started, there was no such things as mobile phones - take a look at the communicators in the original series. I say we will break the speed of light. Am I going to be like one of those in the 50's talking about breaking the speed of sound, or do people actually have enough of an open mind to realisticly consider the possibility? Theoretically it has already been proven that time itself slows by a factor of 6 when traveling at the speed of light. Theory often becomes reality, so how realistic is the speed of light really?

2007-05-12 20:38:56 · 11 answers · asked by aussie1999_au 1

2007-05-12 20:31:19 · 14 answers · asked by robotomisation 2

2007-05-12 18:35:19 · 11 answers · asked by midnight kingdom 2

Has Proton Decay Been Established

2007-05-12 17:41:12 · 10 answers · asked by Anonymous

ok, I know stuff about science and 2 years of physics. I love astronomy and space and time and stuff. but at the moment, i'm getting a little confused about the concept of time.
one second is just one second right? like, anywhere in the universe?

2007-05-12 17:20:26 · 6 answers · asked by Anonymous

"everything that can be invented has been invented" is the dumbest quote I've ever heard.

what is the dumbest and/or smartest quote or statements you have ever heard?

Please comment on the quote that I think is the dumbest.

2007-05-12 17:01:05 · 12 answers · asked by wormhole 3

Okay, they say when we look out into the universe, we are studying history, because it takes the light from those stars thousands of years to reach us. So what we see is from thousands of years ago. If that is true, then couldn't we take a camera traveling faster than the speed of light(I know, considered impossible...so far) and push it away from the earth, but facing earth, and we would see the earth traveling back in time? Wouldn't that solve the problem of where the world came from. Of course you have to set aside petty things like can it zoom, how big is it, nothing can travel that fast. Assuming all those things were possible, wouldn't that be amazing? I believe it will happen one day. What do you think?

2007-05-12 16:32:43 · 9 answers · asked by Julia 4

In the western skies, at about 9-30 PM and Im no astronomer
but there is a very bright light there that doesnt move and is
clearly NOT a plane. I know the questions been asked before but I really dont think that that is Venus. Unless Venus has
grown alot and gotten much brighter or started to be terrafarmed so that theres lots of light coming FROM there. Meaning it does not seem to be Venus. It appears to EMIT light and pulsate. Ive gazed long enough to know that Venus just is NOT that bright nor is Venus that BIG. I can see it
BEFORE dark. At about 8pm which on the East Coast is still very light out. So the Venus explanation really seems a bit too pat. It appears to be a very tiny star not located nearly as far as Venus but rather quite close to Earth, but then again what do -I- know, or perhaps its something so awesome that we dare not even mention it publicly? A star-sattelite perhaps?
Oh but that is just ludicrous:) I just dont believe that THAT is Venus.

2007-05-12 16:19:55 · 3 answers · asked by wvgazer1 1

i know there are people out there who love science and stuff, and you guys know a whole lot more than I do.. So please share it.
Ever wanted to show-off how much you know about the earth, space, universe, time, stars,etc..? Well, here's your chance. I can guarantee your knowledghe won't go unappreciated.
thanks

2007-05-12 15:54:25 · 8 answers · asked by Anonymous

So I went out for night of stargazing with the hopes of finding some good markers like Ursa Major, Leo, Draco and Polaris. It was my hopes that by finding them and locating Venus that I would be able to find Saturn. the seeing wasn't very good as the sky was mottled with clouds and it got cold super fast so I couldn't stay out past 21:45 when it really would get dark. Hopefully if I describe what I sketched you might be able to tell me if I was on the right track. I found Venus and it was west about 40 degrees up in the sky and following ones finger towards the left about 30 degrees was a star and then going upward at a slight leftward angle for about 45 degrees was a yellowish non twinkling light. I took a photo of it and it was spheroid like venus but a little bit more oblong but couldn't get much detail because I was only using my 8mp camera on tripod with 150mm lens. It wasn't dark enough to see where it fell in rel to the constellations but do you think it was Saturn?

2007-05-12 15:52:07 · 4 answers · asked by bastian915 6