Editing Plasticine (section)

===Historic===
<!--- Do not change the spelling of 'fuze' to 'fuse'.  There is extensive discussion of this on the talk page. --->
During World War II, Plasticine was used by [[bomb disposal|bomb disposal officer]] [[John Pilkington Hudson|Major John P. Hudson]] [[Royal Engineers|R.E.]] as part of the defuzing<ref>{{harvp|Jappy|2001|page=rear cover}} "these bombs were to be defuzed 'regardless of the loss of life to bomb disposal personnel'."</ref> process for the new [[SC250 bomb#Fuzes|German "Type Y" battery-powered bomb fuze]]. The "Type Y" [[fuze]] has an anti-disturbance device that had to be disabled before the fuze could be removed.<ref>{{cite book|date=1953|page=182-185 |title=TM 9-1985-2 German explosive ordinance|publisher=[[United States Government Printing Office]]|url= https://archive.org/details/TM919852GermanExplosiveOrdnance1953/mode/2up}}</ref><ref>{{Cite web |url=https://www.bbc.co.uk/history/ww2peopleswar/stories/43/a3924443.shtml |title=The Earl and the Secretary |author=Dunstable Town Centre |date=20 April 2005 |work=BBC |id=A3924443 |quote=The "/Y" fuse behaved exactly like the normal one when tested, but it had an additional circuit that was isolated after activation. This circuit contained mercury tilt switches which would detonate the bomb if the fuse were turned, even slowly. This was a [[booby trap]] designed to kill bomb disposal personnel |access-date=13 September 2015}}</ref>{{unreliable source?|reason=This must be considered unreliable as much of what it claims is at variance with established texts. e.g. it claims that the 'liquid air' froze the mercury rather than liquid oxygen freezing the battery|date=March 2016}} Plasticine was used to build a dam around the head of the fuze to hold some [[liquid oxygen]]. The liquid oxygen cooled the battery down to a temperature at which it would no longer function; with the battery out of commission, the fuze could be removed safely.<ref>{{Cite book |last=Hogben |first=Arthur |year=1987 |title=Designed to Kill |publisher=Patrick Stephens Limited |location=London |isbn=0-85059-865-6 |pages=131–133 |quote=It was believed that by using liquid oxygen poured over the fuze head the necessary very low temperature within the fuze could be achieved.}}</ref><ref>{{Cite book |last=Jappy |first=M. J. |year=2001 |title=Danger UXB |publisher=Macmillan Publishers |location=London |isbn=0-752-21576-0 |pages=150–153 |quote=That was wonderful when we got a bomb with the fuze lying at the top but if the fuze was at the side, it wasn't quite so easy. [...] I think it must have been me who thought of the idea of making a little neck of clay around the side to hold the liquid. I think I used plasticine actually. }}</ref>