ankur rathi wrote:1. Have men reached to any planet other than moon? I think, no. Can anyone tell, why?
ankur rathi wrote:2. Why moon revolves around earth?
ankur rathi wrote:3. Why moon doesn't go towards sun or somewhere in universe (I think it's because of earth's gravity but then why it doesn't come towards earth?)
Maneesh Godbole wrote:1) Moon is not a planet. Its a satellite. Watch Star Trek for a detailed answer to this question
2) Because earth is the center of the universe
3) It does go and come back. Thats how we see the phases of the moon.
ankur rathi wrote:
I just checked definition of satellite, it's: Man-made equipment that orbits around the earth or the moon.
1. Astronomy. a natural body that revolves around a planet; a moon.
. . .
5. a device designed to be launched into orbit around the earth, another planet, the sun, etc.
ankur rathi wrote: any brief explanation of why men are not able to reach on any planets?
ankur rathi wrote: I mean, someone from earth should always (except during moon eclipse time) see complete moon...
ankur rathi wrote:I just checked definition of satellite, it's: Man-made equipment that orbits around the earth or the moon.
If love was a sandwich, I'd eat it.
NASA has a mystery to solve: Can people go to Mars, or not?
"It's a question of radiation," says Frank Cucinotta of NASA's Space Radiation Health Project at the Johnson Space Center. "We know how much radiation is out there, waiting for us between Earth and Mars, but we're not sure how the human body is going to react to it."
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
Steven Mann wrote:Mars is the most viable planet to travel to, and it's still 6-9 months away. Then they would have to stay there till the next cycle begins (two years I think. Maybe four). Think about that for awhile, and you will come up with numerous issues that need to be solved.
Vikas Kapoor wrote:
What cycle? For what they have to wait?
Jesper Young wrote:Can People Go to Mars?
NASA has a mystery to solve: Can people go to Mars, or not?
"It's a question of radiation," says Frank Cucinotta of NASA's Space Radiation Health Project at the Johnson Space Center. "We know how much radiation is out there, waiting for us between Earth and Mars, but we're not sure how the human body is going to react to it."
super sonic? Got those. You mean super-photonic!Vikas Kapoor wrote:...untill we have a super sonic vehicle
"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
sscce.org
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
sscce.org
fred rosenberger wrote:I think the shuttle on re-entry is doing something like Mach 25. That's about 30,000 kph. That would take about 70 days to get to Mars, if you could travel in a straight line at a constant speed.
(my math could be off...)
SCJA
When I die, I want people to look at me and say "Yeah, he might have been crazy, but that was one zarkin frood that knew where his towel was."
SCJA
When I die, I want people to look at me and say "Yeah, he might have been crazy, but that was one zarkin frood that knew where his towel was."
SCJA
When I die, I want people to look at me and say "Yeah, he might have been crazy, but that was one zarkin frood that knew where his towel was."
Bear Bibeault wrote:It would also entail decoupling the phase converters and shifting the bipolar tachyon pulse emitters to inverse polarities.
"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
sscce.org
"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
sscce.org
Maneesh Godbole wrote:
2) Because earth is the center of the universe
ankur rathi wrote:...why sun doesn't revolve around earth?
"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
sscce.org
marc weber wrote:
ankur rathi wrote:...why sun doesn't revolve around earth?
Because it would crash into the moon.
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W. Joe Smith wrote:Without any research on my part, I believe that a big portion of that speed comes from simple gravity pulling the shuttle towards Earth.
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors
Bear Bibeault wrote:Newton's orbital thought expirement is still the best way to understand the concept of a stable orbit.
SCJA
When I die, I want people to look at me and say "Yeah, he might have been crazy, but that was one zarkin frood that knew where his towel was."
Jesper Young wrote: NASA has been thinking about sending people to Mars, but such a mission would be very hard (much harder than going to the Moon) because Mars is much, much farther away than the Moon. It would also be very expensive (hundreds of billions of dollars!) and there are technological problems for which we don't have any good solutions yet. For example, there's a lot of dangerous radiation in space, and there's no good way to protect astronauts from that radiation.
I want to be like marc
Pat Farrell wrote:NASA always thinks about manned exploration. They love sending men. But its a really bad idea. Humans are fragile, and raise the costs by several orders of magnitude. Just send robots.
Pat Farrell wrote:NASA always thinks about manned exploration. They love sending men. ...
Author of ExamLab - a free SCJP / OCPJP exam simulator
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Maneesh Godbole wrote:This sexual discrimination has to stop. Why is it that men get to go? Women too are up to the mark. Feminists of the world, unite!