jm1220 Posted March 22, 2015 Share Posted March 22, 2015 If I recall astronomy class, a black hole is an area in outer space whose gravitational pull is sooooooo great...even light...with an escape velocity of 186,000 miles per second..cannot escape from it. Black holes were once suns....they go through the various stages...when young they are blue & hot...then medium age...yellow and mid temp like our sun...then orange and cooler but growing in mass like Arctrus,,,then red like Betelgeuse....massive & cool...then they supernovae....(explode) and then they contract and become extremely dense and small white dwarfs...or something like that. Cool fact-every element heavier than carbon came from a supernova explosion (an explosion so great it can light up part of an entire galaxy) or fused matter inside a supergiant star which exploded in a supernova. So pretty much any physical matter besides carbon came from such an explosion, indeed much of our own bodies. Supergiant stars can fuse atoms up to iron, then past there more fusion creates less energy than required to sustain the star, so the star explodes and every heavier element is created from the force of the explosion and flung into space. Our star, the Sun, can only fuse matter into carbon I believe, because the mass isn't there to fuse into heavier elements. As you can tell, astronomy is another hobby of mine. Link to comment Share on other sites More sharing options...
Guest Pamela Posted March 22, 2015 Share Posted March 22, 2015 I invariably relieve myself of all those concerns by drawing upon the wise admonition of John Maynard Keynes: "In the long run, we are all dead." Cool fact-every element heavier than carbon came from a supernova explosion (an explosion so great it can light up part of an entire galaxy) or fused matter inside a supergiant star which exploded in a supernova. So pretty much any physical matter besides carbon came from such an explosion, indeed much of our own bodies. Supergiant stars can fuse atoms up to iron, then past there more fusion creates less energy than required to sustain the star, so the star explodes and every heavier element is created from the force of the explosion and flung into space. Our star, the Sun, can only fuse matter into carbon I believe, because the mass isn't there to fuse into heavier elements. As you can tell, astronomy is another hobby of mine. You are very knowledgeable. Link to comment Share on other sites More sharing options...
jm1220 Posted March 22, 2015 Share Posted March 22, 2015 You are very knowledgeable. Link to comment Share on other sites More sharing options...
Juliancolton Posted March 22, 2015 Share Posted March 22, 2015 If I recall astronomy class, a black hole is an area in outer space whose gravitational pull is sooooooo great...even light...with an escape velocity of 186,000 miles per second..cannot escape from it. Black holes were once suns....they go through the various stages...when young they are blue & hot...then medium age...yellow and mid temp like our sun...then orange and cooler but growing in mass like Arctrus,,,then red like Betelgeuse....massive & cool...then they supernovae....(explode) and then they contract and become extremely dense and small white dwarfs...or something like that. Escape velocity is different from velocity... you can't shoehorn the term in just because it sounds cool, ya know. Link to comment Share on other sites More sharing options...
Guest Pamela Posted March 22, 2015 Share Posted March 22, 2015 Escape velocity is different from velocity... you can't shoehorn the term in just because it sounds cool, ya know. Well, at least I got the speed right...I'll make the needed changes. I probably accidently threw "escape" into the mix because the thought of light's inability to "escape" the black hole filtered into my thinking. Link to comment Share on other sites More sharing options...
Juliancolton Posted March 22, 2015 Share Posted March 22, 2015 Done. Cygnus X-1 is the designation of the first black hole discovered in astronomy, and the title of a kick ass Rush song! Link to comment Share on other sites More sharing options...
BxEngine Posted March 22, 2015 Share Posted March 22, 2015 Pam take a break. Link to comment Share on other sites More sharing options...
MJO812 Posted March 22, 2015 Share Posted March 22, 2015 Spring can wait. It's a boring season. Link to comment Share on other sites More sharing options...
MJO812 Posted March 22, 2015 Share Posted March 22, 2015 http://7online.com/news/7-children-killed-in-brooklyn-fire/567560/ I pass the area when I go home from work.Lots of police cars and news stations around tonight. Terrible news. Link to comment Share on other sites More sharing options...
ILoveWinter Posted March 22, 2015 Share Posted March 22, 2015 Cool fact-every element heavier than carbon came from a supernova explosion (an explosion so great it can light up part of an entire galaxy) or fused matter inside a supergiant star which exploded in a supernova. So pretty much any physical matter besides carbon came from such an explosion, indeed much of our own bodies. Supergiant stars can fuse atoms up to iron, then past there more fusion creates less energy than required to sustain the star, so the star explodes and every heavier element is created from the force of the explosion and flung into space. Our star, the Sun, can only fuse matter into carbon I believe, because the mass isn't there to fuse into heavier elements. As you can tell, astronomy is another hobby of mine. Astronomy is such a fascinating subject. I am always just awed by the size of stars, galaxies, the universe...lots of interesting tidbits that involve scale. One of the most interesting is that the amount of energy released in a few seconds from a Gamma Ray Burst equals the entire amount of energy our Sun will emit in its ~10 billion lifespan. Just mind boggling to think about that! Link to comment Share on other sites More sharing options...
SomeWeatherGeek Posted March 22, 2015 Share Posted March 22, 2015 What an incredible winter historic to me. the coldest winter I have ever saw and incredibly dynamic with its persistent pattern! I'm amazed what a perfect winter would be and I think we have just seen a perfect winter. Well if we had a mega snowstorm around March 30th or so it would be perfect. But we'd need 20 inches or so. Edit: pazzo must be pissed because it snowed 2 days ago. Hmmm probably not cause at heart he's still a snow weenie. Link to comment Share on other sites More sharing options...
Nibor Posted March 22, 2015 Share Posted March 22, 2015 Spring can wait. It's a boring season. My only gripe with spring is allergies. Other than that it's wonderful. Link to comment Share on other sites More sharing options...
SnoSki14 Posted March 22, 2015 Share Posted March 22, 2015 My only gripe with spring is allergies. Other than that it's wonderful.Many hate spring for that very reason. It's an absolute nightmare for them and I'm not a fan of widespread pollen and gunk everywhere. For me, spring is my least favorite season. I'll take fall over spring any day when it comes to transitional seasons. Link to comment Share on other sites More sharing options...
Mophstymeo Posted March 22, 2015 Share Posted March 22, 2015 Many hate spring for that very reason. It's an absolute nightmare for them and I'm not a fan of widespread pollen and gunk everywhere. For me, spring is my least favorite season. I'll take fall over spring any day when it comes to transitional seasons. I love the smell of spring, but autumn -- with its chilly air, beautiful colors, and that faint scent of winter cold -- certainly tops the season of sneezes. Link to comment Share on other sites More sharing options...
yhbrooklyn Posted March 22, 2015 Share Posted March 22, 2015 Ugh, allergies suck. Link to comment Share on other sites More sharing options...
Mophstymeo Posted March 22, 2015 Share Posted March 22, 2015 Ugh, allergies suck. I would say blow, but to each his own. Link to comment Share on other sites More sharing options...
Mophstymeo Posted March 22, 2015 Share Posted March 22, 2015 I pass the area when I go home from work.Lots of police cars and news stations around tonight. Terrible news. We must be work neighbors. My sense of Brooklyn geography is terrible so I didn't realize exactly where the fire had taken place, but I passed the block this morning. I can't wrap my head around it. Link to comment Share on other sites More sharing options...
yhbrooklyn Posted March 22, 2015 Share Posted March 22, 2015 I would say blow, but to each his own. Touche Link to comment Share on other sites More sharing options...
doncat Posted March 22, 2015 Share Posted March 22, 2015 Interesting temp departure map for March so far.... -5 degrees here.... Link to comment Share on other sites More sharing options...
PB GFI Posted March 23, 2015 Share Posted March 23, 2015 UVA , RIP . Link to comment Share on other sites More sharing options...
forkyfork Posted March 23, 2015 Share Posted March 23, 2015 UVA , RIP . shooting? Link to comment Share on other sites More sharing options...
pazzo83 Posted March 23, 2015 Share Posted March 23, 2015 shooting? 2-17 from 3. Awful. No energy from them. Link to comment Share on other sites More sharing options...
tdp146 Posted March 23, 2015 Share Posted March 23, 2015 2-17 from 3. Awful. No energy from them. Love the commercials for the Masters during the tournament. Once The Masters rolls around its officially spring for me Link to comment Share on other sites More sharing options...
Juliancolton Posted March 23, 2015 Share Posted March 23, 2015 The only real sport is competitive bass fishing. Link to comment Share on other sites More sharing options...
dmillz25 Posted March 23, 2015 Share Posted March 23, 2015 Sheesh this forum is dead today. Probably the quietest i've seen it on here. Link to comment Share on other sites More sharing options...
bluewave Posted March 23, 2015 Share Posted March 23, 2015 Sheesh this forum is dead today. Probably the quietest i've seen it on here. Things get quiet when the models don't show snow, severe, or hurricanes. Couldn't imagine how quiet this forum would be if we had a San Diego climate. Link to comment Share on other sites More sharing options...
NEG NAO Posted March 23, 2015 Share Posted March 23, 2015 Things get quiet when the models don't show snow, severe, or hurricanes. Couldn't imagine how quiet this forum would be if we had a San Diego climate. would be discussing the heat in Feb. -- 86 on Feb. 12 ??? http://www.accuweather.com/en/us/san-diego-ca/92101/february-weather/347628 Link to comment Share on other sites More sharing options...
dmillz25 Posted March 23, 2015 Share Posted March 23, 2015 Things get quiet when the models don't show snow, severe, or hurricanes. Couldn't imagine how quiet this forum would be if we had a San Diego climate. Glad i dont live there lol Link to comment Share on other sites More sharing options...
MJO812 Posted March 23, 2015 Share Posted March 23, 2015 Things get quiet when the models don't show snow, severe, or hurricanes. Couldn't imagine how quiet this forum would be if we had a San Diego climate. Every forum is like this. You can find me alot in the sports forum come spring and summer. Link to comment Share on other sites More sharing options...
dmillz25 Posted March 23, 2015 Share Posted March 23, 2015 Might as well start something. Anyone remember September of 2010? I think it was the 23rd. The tornado that hit the city? I remember being outside when it occurred. Greenish brown skies large hail as the tornado missed me to my south Link to comment Share on other sites More sharing options...
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