[Prev][Next][Index][Thread]
Re: (meteorobs) Fwd: Meteorite said to start backyard fire
At 18:42 12/06/2000 EST, you wrote:
>... the meteorite is traveling faster than it would at free
>fall....quite a bit faster actually. Several thousand miles per hour.
.....
>....Most likely any
>residual warmth felt immediately after it hits the ground is not due to any
>fiery entry into the air, but from simple friction thru the air as it falls.
Remember that the skin of supersonic aircraft gets extremely hot. If I
remember correctly, the old X2 rocket-plane needed insulating material
similar to the space shuttle's. The SR-71 Blackbird is too hot to touch
after it lands. They have to let the space shuttle cool off something like
15 minutes to an hour before they can touch it.
SteveH
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html
References: