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Re: a summary of Einstein's gift to mankind...

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Albert Einstein also said: "It would, therefore, be quite ridiculous if I were to issue a statement 
declaring my refusal to participate in armament work. Since the military authorities are well aware of my position, 
it would never occur to them to invite me to participate in such work."




The Starmaker wrote:
> 
> in May 1943. The next month Einstein came up with his first suggestion,
> a way to make a torpedo detonate just as it passed beneath a ship’s
> keel. In Einstein’s scheme a pair of electromagnetic coils at the front
> and rear of the torpedo would be connected in series with an
> electromagnet between them. The two coils would have opposite magnetic
> polarity, so when the torpedo was far from the target ship, the induced
> current between them would be zero for reasons of symmetry. As the
> torpedo approached the ship, the hull’s magnetic field would start to be
> felt. Since the field would be stronger at the front of the torpedo than
> at the rear, it would induce a current. Then when the torpedo passed
> beneath the keel, the fields from either side of the hull would cancel
> each other out, and the current would briefly dip to zero, setting off
> the detonator.
> 
> In August Einstein turned his attention to torpedoes detonated by
> contact rather than magnetic impulses. He explained why the explosive
> charge in such torpedoes should be placed at the front instead of the
> rear and suggested a protruding hollow tip, possibly armed with a
> projectile, to increase the likelihood of puncturing the hull instead of
> just shaking it. But contact detonation raised a new problem: The force
> of a violent collision with the hull could crush the head of the torpedo
> before detonation was completed.
> 
> In October Einstein suggested a possible way around this difficulty: Put
> the explosive in the rear of the torpedo and rotate it after impact to
> bring the business end closer. At first he thought the increased water
> speed right next to a ship’s moving hull would do the trick. Two months
> later, though, he decided that even if his idea could be made to work,
> the turning forces would destroy the torpedo. Once again he proposed
> adding a small empty space at the front. It would crumple before the
> rest of the head, buying a few extra thousandths of a second to give the
> explosive time to detonate properly. (Navy engineers eventually solved
> the problem by redesigning the contact detonator’s firing pin.)
> 
> --
>  On January 23, 1950, Einstein wrote in a letter.. I have never taken
> part in work of a military-technical nature...
> 
> --
> The Starmaker -- To question the unquestionable, ask the unaskable,
>  to think the unthinkable, mention the unmentionable, say the unsayable,
> and challenge
>  the unchallengeable.

-- 
The Starmaker -- To question the unquestionable, ask the unaskable,
 to think the unthinkable, mention the unmentionable, say the unsayable, and challenge
 the unchallengeable.

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a summary of Einstein's gift to mankind... The Starmaker <starmaker@ix.netcom.com> - 2022-09-26 11:26 -0700
  Re: a summary of Einstein's gift to mankind... The Starmaker <starmaker@ix.netcom.com> - 2022-09-26 11:46 -0700
    Re: a summary of Einstein's gift to mankind... The Starmaker <starmaker@ix.netcom.com> - 2022-09-26 22:47 -0700
  Re: a summary of Einstein's gift to mankind... The Starmaker <starmaker@ix.netcom.com> - 2022-09-26 11:51 -0700
    Re: a summary of Einstein's gift to mankind... Richard Hertz <hertz778@gmail.com> - 2022-09-26 13:17 -0700
  Re: a summary of Einstein's gift to mankind... nospam@de-ster.demon.nl (J. J. Lodder) - 2022-09-27 12:53 +0200
    Re: a summary of Einstein's gift to mankind... Siri Cruise <chine.bleu@yahoo.com> - 2022-09-27 10:47 -0700
  Re: a summary of Einstein's gift to mankind... The Starmaker <starmaker@ix.netcom.com> - 2022-09-29 00:20 -0700
    Re: a summary of Einstein's gift to mankind... The Starmaker <starmaker@ix.netcom.com> - 2022-09-29 12:06 -0700

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