Astronomy & Space - July 2006

like there is always a beginning and an end so what was before the beginning of time...like before space was formed

2006-07-01 19:32:01 · 24 answers · asked by Anonymous

Also, could Mars eventualy be made suitable for human life?

2006-07-01 19:31:36 · 12 answers · asked by Anonymous

2006-07-01 19:28:50 · 24 answers · asked by ANyone but you 2

2006-07-01 18:39:42 · 14 answers · asked by Raja J 1

2006-07-01 18:23:02 · 16 answers · asked by Anonymous

2006-07-01 18:17:51 · 16 answers · asked by Brandon 3

What name is this place you would be standing on.

2006-07-01 18:13:24 · 4 answers · asked by travelin_jalapeno 3

there should not be age difference between 2 twins space twin or earth twin..

we are talking about absolute age. Age will be decided by absolute age or absolute time not by relative time.

the absolute age should be same for both twins. wherever one of the twins goes in the space we will be comparing him with our earth time reference. means if the twin is traveling in the space at whatever speed or wherever he is, 1 day on earth will be same 1 day for him. when the earth twin ages by one year the space twin also has to age by one year. Because we are comparing with our earth time. it is absolute for us. Means when we spend one day on our earth, throughout the infinite universe it will be only one day. wherever the twin spends that time he can only have one earth day.

Now the space twin may develop physiological changes unique to space and speed travel etc and this might produce 3 possibilities; he will live longer; he will live shorter, or he will live as long the other twin ( other biasing factors should be eliminated ). This is not equivalent to age change.

If space twin will live longer- how does it make him younger than the earth twin???? when earth twin spent 1 year for example on earth the space twin also has spent only 1 year in the space. so the absolute age is same for both. so even if the space twin will live longer he still will be of the same age as the earth twin.

For example- If the space twin leaves earth on 7/2/2006 and goes to alpha centaury at light speed he will reach that star system around 7/2/2010 ( approximate ) - then returns to earth after another 4 years on 7/2/2014- so total about 8 years- now what will happen?

when the space twin returns on that day of 2014 for both twins it will be same date. And both twins have lived in this universe for 14 years. Implying both are aging by 14 years ahead. because we cannot change the absolute time. It has been fixed for the whole universe..

now the perception of time may be different for the twins. the space twin will have a so called normal disorientation of time ( I will call normal because it is appropriate for the situation ). He might lose the concept or sense of earth time and might feel he has only spent short period of time instead of 14 years as experienced by the earth twin. But that is in his mind only and it is an altered perception, but in reality he and his and his earth twin both have lived for exactly 14 years.

To make it further simple; let the space twin carry a clock with him. Let him frequently look at it. This will reduce the disorientation for time and will keep him attached to earth time. He will feel he spent 14 years on space travel when the earth twin also spends 14 years on the earth.

Absolute time is all important and it will be same. Means both will age same. However one of the twins possibly the space twin ( although not sure ) may live longer. And it should be considered as “ the space twin lives longer rather than he became younger and lived longer“ In effect he has lived all those days lived by his earth twin + additional days he lives secondary to space travel advantage.

2006-07-01 17:45:05 · 5 answers · asked by SS 2

2006-07-01 17:11:52 · 5 answers · asked by Chantae 2

2006-07-01 17:01:43 · 39 answers · asked by Marilyn Monroe 2

Im sure we can make it happen. So when do you think it will?

2006-07-01 16:52:18 · 17 answers · asked by mnmnk00 2

2006-07-01 16:19:55 · 21 answers · asked by DNE 3

I'm all for space travel and advancements but when you come back with the same shiit all the time, it get's kind of old. Especially when the money comes out of tax payers pockets.

And whatever happened to this "Mission to Mars"?!?!

2006-07-01 16:15:40 · 15 answers · asked by Anonymous

when light moves through curved spacetime,it is bend so that its velocity changes but this voilates the law of relativity that laws of nature should b same 4 all freely moving observers.so how can light b allowed to bend?

2006-07-01 16:14:29 · 4 answers · asked by Mr.A 1

suppose a very strong house measures 20m in length and a rod measures 25m.when rod moves at 70% the speed of light(.7c) so that its length shrinks to 18m and it would fit the in house and we could slam the door shut.but if we were on the rod and moving with it,the house would appear to move at .7c so that its length would shrink to 14m and rod wont fit in the house.
so will the rod fit in the house or not???

2006-07-01 16:09:43 · 3 answers · asked by Mr.A 1

the tavelling twin could equall well say that he was at rest in spaceship and earth was moving away.so according to him the earth bound twin was moving and his earth bound brother should b younger than he is.so according to earth bound twin he was older and according to the one in spaceship he was older.so who is youger and who is older???
(i wont accept confusing answers such as both will b younger for each other.)

2006-07-01 16:04:53 · 16 answers · asked by Mr.A 1

if i launch a rocket at earth so that after a brief period it had accelerated to .95c(95% the speed of light)as observed from earth.now if we accelerate earth in a direction opposite to rocket(assuming that we have enough energy)at .10c,then i will have the right to say that i am at rest and only rocket is moving so that when i measure the speed of rocket it would appear to greater than c.this is not allowed by relativity...explian.

2006-07-01 15:54:10 · 9 answers · asked by Mr.A 1

if there was a very massive body that its gravitational field extended very far and its acceleration of freefall was much higher(the accelerationn of freefall is same no matter how massive the body is).if a mass fell in the g.field of this body so that it will tavel a very long dist. before impact so that it would be accelerated to the speed of light(the infinite mass characteristic and need for infinite energy would not have any affect as acceleration of freefall is independent of mass and no energy is being supplied for acceleration) BUT THIS ACCELERATION EQUAL TO OR GREATER THAN SPEED OF LIGHT IS TOTALLY FORBIDDEN BY RELATIVITY.explain this..

2006-07-01 15:50:39 · 9 answers · asked by Mr.A 1

In the early 90's, some time during the middle of a clear night, I sat upon my roof with a radio and wrist watch. On the radio, I was listening to a live broadcast of a SS night launch.

Before lift-off, it was reported to the public that the Shuttle's flight path would be east of the U.S. coastline heading north on it's way into space, and residents of NYC would be able to see it when it flew by.

Knowing the distance from the Cape to NYC and the average speed of the SS, I estimated 10 minutes would pass before I saw it.

After hearing "lift-off" on the radio, I looked at my watch and started my countdown for the sighting.

Exactly 10 minutes later, I began scanning the eastern horizon. To my amazement, about 15 degrees above the horizon, I saw a glowing orange shockwave that looked like this < . The glow lasted for about 30 seconds, with the remaining seconds flickering on and off, until the shuttle entered the vacuum of space.

What A sight!

2006-07-01 15:07:20 · 7 answers · asked by Cleared For Take-off 1

2006-07-01 14:59:23 · 7 answers · asked by Anonymous

2006-07-01 14:57:27 · 12 answers · asked by I'm Geaked UP 1

Keep in mind that some extraterrestrial life may be more advanced than us. So if they know we are here, could it result in a war like "War of the Worlds"?

2006-07-01 14:45:49 · 14 answers · asked by 1234abcd 2

i want know about the new planet found

2006-07-01 14:37:03 · 20 answers · asked by karthikgrn 1

2006-07-01 14:31:09 · 18 answers · asked by Anonymous

2006-07-01 14:11:17 · 6 answers · asked by Gandaf6969 1

I am observing a rigid rod moving at half the speed of light, parallel to me. On the rod is a light source and a mirror. An observer is also on the rod. To the observer on the rod, light moves at the speed of light, both approaching the mirror and returning from the mirror. But to me as the "stationary" observer, light should also appear to be moving at a constant speed in both directions. Assuming the rod is approaching me at half the speed of light, how can it be that I observe light to be traveling at a constant velocity both toward the mirror and from the mirror while at the same time the observer on the rod sees this.

Grant me your wisdom oh theoretical physicist gurus...

2006-07-01 13:49:07 · 6 answers · asked by mikio kawada 2

2006-07-01 12:43:55 · 4 answers · asked by Anonymous

2006-07-01 12:43:55 · 3 answers · asked by mitch349_2000 1

If NASA wanted the launch today why not schedule it for the morning when the weather has a better chance of being favorable?

2006-07-01 12:41:25 · 5 answers · asked by mymadsky 6

if you are traveling at 10 miles per hour.

2006-07-01 12:39:16 · 5 answers · asked by soniutkarsh 1