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2012-03-26, 06:44   #1244
Christenson

Dec 2010
Monticello

5×359 Posts

Quote:
 Originally Posted by bcp19 Known factors: 500' vertical shaft, Steel lid 4" thick weighing some 900kg. For calculation purposes, using FEMA's Unit Weights of Common Building Materials, Steel is listed at 496 pounds per cubic foot. This gives you roughly 4 cubic feet of steel in the lid, ~12 square feet of surface for the lid gives you a diameter of a little under 4 feet. The area of the shaft then would be roughly 6000 cubic feet.
And an atom bomb at the bottom, transferring huge amounts of radiation into the plate, probably significantly weakening it and heating it. However, remember that a meteorite generally doesn't come straight in...and this plate was headed straight out, so it doesn't have to survive for long, maybe 2 seconds (using ~14mi as the depth of the atmosphere and only really being worried if I have the right number of zeros, since the rest of the data is equally sparse)

What is needed is what the radars saw -- that plate would leave a very radar-visible ion trail and a plume if it was still solid, and do so well above the atmosphere if it "survived".

2012-03-26, 09:30   #1245
xilman
Bamboozled!

"𒉺𒌌𒇷𒆷𒀭"
May 2003
Down not across

101000100111102 Posts

Quote:
 Originally Posted by Christenson However, remember that a meteorite generally doesn't come straight in...and this plate was headed straight out, so it doesn't have to survive for long, maybe 2 seconds (using ~14mi as the depth of the atmosphere and only really being worried if I have the right number of zeros, since the rest of the data is equally sparse)
It started out going straight up. A flat plate would start tumbling instantly, as I noted earlier.

14 miles (25km say) is gross underestimate of the thickness of the atmosphere. Metors generally start serious ablation up at around 100km where the air is much thinner than the plate would experience when it first takes off at about 70km/s. Meteors rarely travel much faster than half that speed and undergo much less resistance, and hence thermal shock than the plate would endure.

Last fiddled with by xilman on 2012-03-26 at 09:36

 2012-03-30, 03:28 #1246 Xyzzy     "Mike" Aug 2002 3×43×61 Posts
2012-03-30, 05:58   #1247
LaurV
Romulan Interpreter

Jun 2011
Thailand

214038 Posts

Quote:
 Originally Posted by Xyzzy ...
beautiful! Can it be used for factoring? I think it should not be so difficult...

 2012-03-31, 19:12 #1248 only_human     "Gang aft agley" Sep 2002 2×1,877 Posts
2012-03-31, 22:01   #1249
Dubslow
Basketry That Evening!

"Bunslow the Bold"
Jun 2011
40<A<43 -89<O<-88

3·29·83 Posts

I thought I got this from here, but I can't find it anywhere... so here it is (again?).

http://www.wired.com/threatlevel/201...tacenter/all/1

Quote:
 According to another top official also involved with the program, the NSA made an enormous breakthrough several years ago in its ability to cryptanalyze, or break, unfathomably complex encryption systems employed by not only governments around the world but also many average computer users in the US.
0_o

 2012-04-02, 18:20 #1250 bcp19     Oct 2011 7·97 Posts Found this comment on an ebay listing: You are bidding on a GIGABYTE GA-P35-DS3L LGA 775 Intel P43 ATX Intel Motherboard Comes in original box and was my wifes. I recently upgraded her so I am selling this. Makes it sound like he upgraded his wife lol.
2012-04-02, 20:23   #1251
99.94

Dec 2004
The Land of Lost Content

1000100012 Posts

Quote:
 Originally Posted by bcp19 Found this comment on an ebay listing: You are bidding on a GIGABYTE GA-P35-DS3L LGA 775 Intel P43 ATX Intel Motherboard Comes in original box and was my wifes. I recently upgraded her so I am selling this. Makes it sound like he upgraded his wife lol.
He may well have meant exactly that.

2012-04-02, 21:26   #1252
Batalov

"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

3×3,061 Posts

Quote:
 Originally Posted by 99.94 He may well have meant exactly that.
It is still a better deal than
"You are bidding on the laptop that I shot repeatedly while making a youtube video to make a lesson for my daughter and the likes of her of the twitterati generation."

2012-04-03, 09:19   #1253
jasong

"Jason Goatcher"
Mar 2005

5·701 Posts

Quote:
 Originally Posted by Batalov It is still a better deal than "You are bidding on the laptop that I shot repeatedly while making a youtube video to make a lesson for my daughter and the likes of her of the twitterati generation."
Actually, if you had a way to prove it, that laptop could be worth more shot up than in good condition. That video got A LOT of views. I can imagine it getting put in a tech museum in New York City. Or maybe some tech company would want it as a souvenir.

 2012-04-10, 08:43 #1254 retina Undefined     "The unspeakable one" Jun 2006 My evil lair 3·13·151 Posts For budding web programmers ...

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