|
|
|
|
|
|
|
#1
06.09.2011, 14:23:34
|
|||
|
|||
Citat:
|
|
#2
06.09.2011, 15:34:12
|
|||
|
|||
|
Citat:
|
|
#3
06.09.2011, 15:36:43
|
||||
|
||||
|
Iarasi murim ?
|
|
#5
06.09.2011, 17:46:29
|
||||
|
||||
|
Citat:
 
|
|
#6
06.09.2011, 21:06:15
|
|||
|
|||
|
De fapt e cometa sinucigasa, ca a cam inceput sa se descompuna...
|
|
#7
06.09.2011, 21:30:41
|
||||
|
||||
|
De pe site-ul NASA
I've heard about three days of darkness because of Comet Elenin. Will Elenin block out the sun for three days?
“As seen from the Earth, comet Elenin will not cross the sun’s face,” says Yeomans. But even if it could cross the sun, which it can’t, astrobiologist David Morrison notes that comet Elenin is about 2-3 miles (3-5 km) wide, while the sun is roughly 865,000 miles (1,392,082 km) across. How could such a small object block the sun which is such a large object? Let's think about an eclipse of the sun, which happens when the moon appears between the Earth and the sun. The moon is about 2,500 miles (4,000 km) in diameter, and has the same apparent size as the sun when it is about 250,000 miles (400,000 km) away -- roughly 100 times its own diameter. For a comet with a diameter of about 2-3 miles (3-5 km) to cover the sun it would have to be within 250 miles (400 km), roughly the orbital altitude of the International Space Station. However, as stated above, this comet will come no closer to Earth than 22 million miles. I've heard there is a "brown dwarf" theory about Comet Elenin. Would its mass be enough to pull Comet Honda's trajectory a significant amount? Could this be used to determine the mass of Elenin? Morrison says that there is no 'brown dwarf theory' of this comet. "A comet is nothing like a brown dwarf. You are correct that the way astronomers measure the mass of one object is by its gravitational effect on another, but comets are far too small to have a measurable influence on anything." http://www.nasa.gov/topics/solarsyst...et_elenin.html Atunci cand dorim sa aflam ceva, ne informam dintr-o sursa de incredere, nu de la OTV.
__________________
Pe noi inșine și unii pe alții și toată viața noastră lui Hristos Dumnezeu să o dăm.
|
|
#8
06.09.2011, 21:41:52
|
||||
|
||||
|
Citat:
|
|
#9
07.09.2011, 18:01:10
|
||||
|
||||
|
Citat:
__________________
Îmi cer scuze celor pe care i-am supărat! "Trebuie sa mori înainte de a muri Pentru a nu muri atunci când mori"
|
|
|
Mod hibrid