#1  
Old 10-09-2016, 04:34 PM
Melbourne Melbourne is offline
Guest
 
Join Date: Nov 2009
Posts: 3,370
Hiroshima contamination

"First, both bombs were detonated more than 500 meters above street level so as to wreak maximum destruction (surrounding buildings would have blocked much of the force of ground-level explosions). "

hiroshima-and-nagasaki-

I won't call that wrong --although I think it probably the ground they were thinking about rather than the buildings (the Nagasaki damage was much smaller due to ground uneveness, and the Hiroshima buildings didn't seem to be much of an obstacle) --

But the scientists (if not the military) already knew that a ground burst would be dirty, and would prevent occupation. One of the reasons for using air bursts in the tests was to prevent fallout and persistant contamination
  #2  
Old 10-09-2016, 05:03 PM
ftg ftg is offline
Guest
 
Join Date: Feb 2001
Location: Not the PNW :-(
Posts: 16,031
The Trinity explosion was quite close to the sandy ground and an odd glass was formed: Trinitite.

More here including this quote:

"In 1945, Trinitite was marketed for use in jewelry, but it was later found to cause radiation burns if worn for extended periods of time."

It is still considered a hazard. Most of the on-site material was buried and access is still limited to 2 public events a year with a strict no-collecting policy.

There was some testing of nukes underground (besides just weapons testing) for possible use in mining and engineering. But the long term, left over radiation in those cases ruled this out as practical.

Bikini Atoll shows that multiple tests of ground/ocean bursts leaves lasting problems.

Hiroshima and Nagasaki were sort of special given the knowledge and techniques of the day.
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 05:05 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

Send questions for Cecil Adams to: cecil@chicagoreader.com

Send comments about this website to: webmaster@straightdope.com

Terms of Use / Privacy Policy

Advertise on the Straight Dope!
(Your direct line to thousands of the smartest, hippest people on the planet, plus a few total dipsticks.)

Publishers - interested in subscribing to the Straight Dope?
Write to: sdsubscriptions@chicagoreader.com.

Copyright 2017 Sun-Times Media, LLC.

 
Copyright © 2017