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whats up with planet Jupiter?
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whats up with planet Jupiter?
On Jul 25, 9:20*am, Tim wrote:
http://dsc.discovery.com/news/slides...sion-scar.html looks like something knocked a hole in it... maybe the kid threw a tantrum... http://www.youtube.com/watch?v=6etwZzv4rQ0 |
whats up with planet Jupiter?
"Tim" wrote in message ... http://dsc.discovery.com/news/slides...sion-scar.html looks like something knocked a hole in it... SW was driving while texting. Eisboch |
whats up with planet Jupiter?
Tim wrote:
http://dsc.discovery.com/news/slides...sion-scar.html looks like something knocked a hole in it... SW Tom in that eTEC powered copter... -- A wise Latina makes better decisions than a dumb elephant. |
whats up with planet Jupiter?
On Sat, 25 Jul 2009 10:25:44 -0400, "Eisboch"
wrote: "Tim" wrote in message ... http://dsc.discovery.com/news/slides...sion-scar.html looks like something knocked a hole in it... SW was driving while texting. Hell no. I was testing my super secret helium ion powered mass driver. I didn't have it sighted in properly. Jeeze - so I have a few bugs to work out - give me a break. |
whats up with planet Jupiter?
On Sat, 25 Jul 2009 11:07:30 -0400, Wizard of Woodstock
wrote: I was testing my super secret helium ion powered mass driver. I didn't have it sighted in properly. Jeeze - so I have a few bugs to work out - give me a break. Don't point it at anyone unless you intend to shoot! You could vaporize the entire state of Maryland with one little slip. :-) |
whats up with planet Jupiter?
On Sat, 25 Jul 2009 11:21:17 -0400, Wayne.B
wrote: On Sat, 25 Jul 2009 11:07:30 -0400, Wizard of Woodstock wrote: I was testing my super secret helium ion powered mass driver. I didn't have it sighted in properly. Jeeze - so I have a few bugs to work out - give me a break. Don't point it at anyone unless you intend to shoot! You could vaporize the entire state of Maryland with one little slip. :-) Hmmm - never occurred to me until you just mentioned it. :) |
whats up with planet Jupiter?
wrote:
On Sat, 25 Jul 2009 11:02:30 -0400, H the K wrote: wrote: On Sat, 25 Jul 2009 07:20:22 -0700 (PDT), Tim wrote: http://dsc.discovery.com/news/slides...sion-scar.html looks like something knocked a hole in it... Hey Jupiter, thanks for taking one for the team! If one of these things gets by jupiter and hits us "global warming" and the health care crisis will be the least of our worries. Bruce Willis is rested and ready. Those movies are largely Roadrunner cartoons. It is very likely we won't see the big one until there is a bright spot in the east and "surfs up" in Roanoke with Tsunami waves crashing on the foot hills of the smokies. The first indication we had of the hit on Jupiter was a 10,000 mile wide hole in the atmosphere, discovered by a back yard astronomer. Really? You mean Armageddon wasn't based on fact? Damn. I like Bruce Willis movies, silly as they are. Bruce gives you your moneys worth. |
whats up with planet Jupiter?
On Jul 25, 11:21*am, Wayne.B wrote:
On Sat, 25 Jul 2009 11:07:30 -0400, Wizard of Woodstock wrote: I was testing my super secret helium ion powered mass driver. *I didn't have it sighted in properly. Jeeze - so I have a few bugs to work out - give me a break. Don't point it at anyone unless you intend to shoot! *You could vaporize the entire state of Maryland with one little slip. * :-) I always wondered if the earths moon protected earth from otherwise getting its share of impacts. Consider, the center of mass of the earth-moon system is actually 1000 miles closer to the surface due to the moon thus effectively reducing the earths radius by 1000 miles (a drop in x sectional area of about 25%). Some people mistake the ratio of the solid angle subtended by the moon as seen from earth to the solid angle of the sky (2*pi) as being the reduction leading to a very small diff, however, this is incorrect. The effective drop in area of earth seen by an incoming asteroid is the ratio of earths x sectional area using the effective radius with the moon to the area without the moon. This drop of 25% might be just what civilization needs to allow enough time to get going before we can stop such impacts. Thus, an earth without a large moon might not allow a civilization to develop. The reverse situation is not true. That is, a large primary body (uninhabited) with a small earth sized body with animals on it would be in a poor position to develop civilization. Consider the moons of Jupiter. Jupiter draws the crap in and then a lot of it hits the poor moons, they are pocked with craters in spite of constant rearangement of their crusts (look at Europa). I once tried to write a program to simulate this but I ran out of time. Then I tried to get my kids to do it for a science fair project, no interest. Older daughter is about to graduate from college with degree in bio so maybe I can convince her......unfortunately, she has no knowledge of programming or interest in orbital mechanics (its just vectors). |
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