Oxygen - chemistry with a pop series Traditional Cache

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Darick: Time to let this one go!

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Hidden : 9/1/2011
Difficulty:
1 out of 5
Terrain:
1.5 out of 5

Size: Size: micro (micro)

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Geocache Description:

Quick park and grab near 108th & Giles. I have visited here a couple of times and haven't encountered any muggles yet... but be aware of muggles driving by before making the grab. Bring your own pen/pencil.

This is part of a series of caches all using the same container. The experiment continues... first, the container was proven to be waterproof as long as you replace the lid tightly (please do). Second, they seem to be holding up in the elements, at least for the short term. Next experiment is internal log construction... trying a more secure method of attaching the log to the lid to ensure quick and simple log extraction and to reduce maintenance issues. Let me know if you have any comments/annoyances with these containers.

************************* OXYGEN *************************

Atomic Number: 8

Symbol: O

Atomic Weight: 15.9994

Discovered By: Joseph Priestly, Carl Wilhelm Scheele, 1774 (England/Sweden)

Word Origin: Greek: oxys: sharp or acid and Greek: genes: born, former... 'acid former'

Properties: Oxygen gas is colorless, odorless, and tasteless. The liquid and solid forms are a pale blue color and are strongly paramagnetic. Oxygen supports combustion, combines with most elements, and is a component of hundreds of thousands of organic compounds. Ozone (O3), a highly active compound with a name derived from the Greek word for 'I smell', is formed by the action of an electrical discharge or ultraviolet light on oxygen.

Uses: Oxygen was the atomic weight standard of comparison for the other elements until 1961 when the International Union of Pure and Applied Chemistry adopted carbon 12 as the new basis. It is the third most abundant element found in the sun and the earth, and it plays a part in the carbon-nitrogen cycle. Excited oxygen yields the bright red and yellow-green colors of the Aurora. Oxygen enrichment of steel blast furnaces accounts for the greatest use of the gas. Large quantities are used in making synthesis gas for ammonia, methanol, and ethylene oxide. It is also used as a bleach, for oxidizing oils, for oxy-acetylene welding, and for determining carbon content of steel and organic compounds. Plants and animals require oxygen for respiration. Hospitals frequently prescribe oxygen for patients. Approximately two thirds of the human body and nine tenths of the mass of water is oxygen.

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