Eureka! Traditional Cache

This cache has been archived.

The Bee Keeper: As the owner has not responded to my previous log requesting that they check this cache I am archiving it.

Regards

The Bee Keeper
Volunteer UK Reviewer - geocaching.com
UK Geocaching Information & Resources site http://www.follow-the-arrow.co.uk/resources/
Geocaching.com Knowledge Books http://support.groundspeak.com//index.php

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Hidden : 6/29/2010
Difficulty:
1 out of 5
Terrain:
1 out of 5

Size: Size: micro (micro)

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Geocache Description:

This is a magnetic microcache.

The park is open daily 7.30am-10pm.

The area can be busy when the weather is sunny, particularly around lunchtime, so watch out for muggles!

If you leave the park from the nearby exit and look to your right, you will see the pedestrian crossing where the idea of a nuclear chain reaction was first conceived,

35 year old theoretical physicist Leó Szilárd was a Hungarian Jew who’d recently fled his home in Berlin to escape the rise of Nazism Walking to work on 12 September 1933, Szilárd was pondering an article he’d read in The Times the day before where fellow physicist Ernest Rutherford had argued that nuclear energy could never be harnessed for practical purposes. As Szilárd set foot on the crossing on the corner of Southampton Row and Russell Square, inspiration suddenly struck.

Heavy, unstable elements such as uranium are radioactive because their nuclei can spontaneously break into two parts, releasing a couple of neutrons and energy in the form of heat. This process is called nuclear fission.

A nucleus can become unstable if it absorbs a neutron and what Szilárd realised was that the neutrons produced by one nuclear fission reaction could trigger fission in other surrounding nuclei. If one fission reaction releases two neutrons, these can go on to spark two more reactions which release four neutrons, which go on to trigger four more reactions… carry on repeating and voila! It’s a nuclear chain reaction.

This cascading series of fission reactions releases an incredible amount of energy – mass is converted into energy as predicted by Einstein’s famous E=mc2 equation. Inside nuclear power stations the chain reaction is controlled and the energy released is used to produce electricity. However, in nuclear weapons the chain reaction isn’t controlled resulting in explosions with devastating consequences.

Additional Hints (Decrypt)

Haqre gur orapu.

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)


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