Socle

Socle (pronounced sok-uhl or soh-kuhl)

(1) In architecture, a low, plain part forming a base for a column, pedestal, or the like; a plinth or pedestal.

(2) In architecture, A plain face or plinth at the foot of a wall.

(3) In furniture design, as applied to tables, a large, full-width support used as an alternative to table legs.

(4) In cooking, the use of bread, rice, potato or similar as a (sometimes only decorative) base onto which other ingredients are laid.

(5) In algebraic ring theory (a branch of abstract algebra that studies rings, which are algebraic structures that generalize the properties of integers) the sum of the minimal normal sub-modules of a given R-module of a given ring R.

(6) In group theory, the sub-group generated by the minimal normal subgroups of a given group.

1695–1705: From the French socle, from the Italian zoccolo (wooden shoe; base of a pedestal) from the Latin socculus (small shoe (literally "small sock" (soccus)).  Socle is a noun; the noun plural is socles.

The Valkyrie plot: 20 July 1944

The Valkyrie Plot was an attempt, one of many but one also of a handful actually brought to fruition, to kill Adolf Hitler (1889-1945; German head of government 1933-1945 & head of state 1934-1945).  The conspirators were mostly Prussian aristocrats, senior army officers (a bit of overlap there) and a smattering of liberal politicians, all of whom ultimately demonstrated their ineptitude at staging a coup d'état but, on 20 July 1944, they did succeed in detonating an explosive device they had smuggled into the Wolfsschanze (the Wolf’s Lair, one of the Führer's heavily guarded military headquarters on the Eastern Front).  Previous opportunities to use a bomb for this purpose had been aborted because the conspirators had wanted as many leading Nazis as possible also killed and those circumstances never arose but after the Allies successfully established a beachhead in Normandy (the 6 June 1944 D-Day landings), it was decided to delay no longer.  The bomb used at the Wolf's Lair was actually of British origin, obtained by the Abwehr (literally "resistance" or "defence" but in a military context used by Germans to mean "counterintelligence"), the military-intelligence service for the Reichswehr & Wehrmacht between 1920-1945 (ironically it was for most of the war one of the centres of anti-Nazi activities) and chosen because its fuse operated with complete silence device.  Ultimately the blast four, seriously injuring another thirteen but Hitler survived for three reasons (although he would claim it was "providence").

(1) Hot, sultry weather.  The plan was for the assassination to be carried out by planting explosives in an underground bunker built with reinforced concrete which had just one steel door and no windows.  Designed to be bomb-proof in that it was built expressly to protect occupants from the energy of outside explosions, in an inside explosion, the occupants would be hit by several blast waves as a consequence of the resonant conditions of high-energy fluid dynamics; ideal conditions to stage an explosion with lethal intent.  However, with unpleasantly high temperature and humidity on the day, the meeting was moved to an above-ground building with several windows which offered ventilation to provide relief.  Thus, when the device exploded, both energy from the blast wave and shrapnel, instead of being contained and ricocheting around the room, dissipated partially outside.

(2) The furniture: The table under which the bomb was planted was supported by two stout, heavy socles rather than legs.  This wouldn’t have been critical except that minutes before detonation, the briefcase containing the device was moved from one side of the socle to the other so that the heavy timber stood between Hitler and the bomb, the structure now at the perfect angle to absorb much of the blast before it reached him.  Had the briefcase been left in its original position, the socle which ultimately absorbed or re-directed much of the energy would instead have increased the lethality of the energy directed towards Hitler. 

(3) Bad luck: Because of circumstances on the day, the plotters were able to arm only one of the two bombs they had intended to use.  Had both been detonated, in either room, the blast would have been much greater although opinion remains divided over whether even this would have been enough to guarantee Hitler’s death.  As it was, he escaped with non-life threatening injuries (curiously for some time after the blast, the shaking of his limbs (symptoms which may have indicated Parkinson's Disease) vanished) and was well enough to conduct social activities the same afternoon (after changing his trousers which had been shredded by the blast), meeting with the by now much diminished Duce (Benito Mussolini,1883-1945; Duce (leader) & prime-minister of Italy 1922-1943).  After that, they would never meet again.  

Aftermath: The Führer shows the Duce the effects of the blast, telling him he'd been saved "by providence".  Mussolini agreed with Hitler but of course, he always said he did, even when suffering his not infrequent doubts.

The popular television show Mythbusters, run by past masters at blowing-up stuff, did test whether the blast, if using both devices instead of one, would have killed Hitler in either the above-ground conference room or the sealed, underground bunker.  Their tests were conducted using full-scale emulations of both the conference room in which the attack took place and the the underground bunker from which the meeting had been moved.  In both, the intended explosive power was deployed rather than that generated by the single device used on the day.  Explosives experts who examined the data tended to agree that while not definitive, it was plausible Hitler could have survived even a more powerful blast in the conference room but that everything was still dependent on the placement of the briefcase.  However, because the second test didn't exactly replicate the sealed, underground bunker (the test structure was only partially buried) with its walls of think, reinforced concrete, the experts were less convinced by the Mythbusters' conclusion that too would have been survivable.  They further noted the significance of the socle in deflecting the blast, this something which happened only by chance on the day and all agreed that had the bomb been placed close to Hitler, as intended, the blast in either room probably would have killed or severely injured him.

Tables with soles (for prosecution and defence counsel), Lindsay Lohan in court, Los Angeles, January 2013.