This cache has been archived.

cervisvenator: Hi

While I feel that Geocaching.com should hold the location for the cache owner and block other cachers from placing a cache in the area around this cache for a reasonable amount of time, we can’t do so forever.

Nothing seems to happen with this cache listing, so it is now archived, so that someone else can place a cache in the area, and geocachers can once again enjoy visiting this location. Also, if it hasn’t been done already, please pick up any remaining cache bits as soon as possible.

If the owner wants it reopened, send me an e-mail and I’ll be happy to unarchive the cache listing if it still satisfies the requirement/guidelines.

(This reviewer note is in English so non-Norwegian cache owners, geocachers and cache reviewers can understand what it says.)

Thanks for your understanding,
Cervis Venator
Geocaching.com Volunteer Cache Reviewer

GC23DYM ▼

A cache by Sadoprest Message this owner

Hidden : 4/23/2010

Difficulty:

Terrain:

Size: Size: small (small)

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Geocache Description:

This is a cache in the IYC2011-series that is preparing for the
International Year of Chemistry in 2011. They will hopefully
increase chemistry knowledge as well as provide for good cache
experiences.

Each cache in the IYC2011-series contains a clue (on the log
sheet) to find the final IYC2011-cache to be released on
1/1/2011.

Cobalt

Cobalt is the chemical element with atomic number 27, represented by the symbol Co.
Cobalt-based colors and pigments have been used since ancient times for jewelry and paints, and miners have long used the name kobold ore for some minerals.
Cobalt occurs in various metallic-lustered ores, for example cobaltite (CoAsS), but is mainly produced as a by-product of copper and nickel mining. The copper belt in the Democratic Republic of the Congo and Zambia yields most of the cobalt mined worldwide.

Cobalt is used in the preparation of magnetic, wear-resistant, and high-strength alloys. Smalte (cobalt silicate glass) and cobalt blue (cobalt(II) aluminate, CoAl₂O₄) gives a distinctive deep blue color to glass, ceramics, inks, paints, and varnishes. Cobalt-60 is a commercially important radioisotope, used as a tracer and in the production of gamma rays for industrial use.

Cobalt is an essential trace element for all animal organisms as the active center of coenzymes called cobalamins. These include vitamin B-12 which is essential for mammals. Cobalt is also an active nutrient for bacteria, algae, and fungi.

The four dihalides of cobalt are known: cobalt(II) fluoride (CoF₂), cobalt(II) chloride (CoCl₂), cobalt(II) bromide (CoBr₂), cobalt(II) iodide (CoI₂). These dihalides exist as anhydrous and hydrates. Most famously, the anhydrous dichloride is blue, whereas the hydrate is red.

Cobalt-60 (Co-60 or ⁶⁰Co) is useful as a gamma ray source because it can be produced in predictable quantity and high activity by simply exposing natural cobalt to neutrons in a reactor for a period. Its uses include sterilization of medical supplies and medical waste, radiation treatment of foods for sterilization (cold pasteurization), industrial radiography (e.g., weld integrity radiographs), density measurements (e.g., concrete density measurements), and tank fill height switches.

Read more about cobalt here or here.

The coordinates

N 60° 23.AB
E 005° 19.CD
A: # of protons in cobalt.
B: Dose, in mSv, of one hour of exposure to a ⁶⁰Co-source of 8,4GBq at 1m distance.
C: Colbalt belongs to this group in the Periodic Table.
D: Cyanocobalamine.

Cache contents

- Logsheet
- Pencil
- FTF-certificate
- Some other items

Additional Hints (Decrypt)

Oruvaq, tebhaq yriry.

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)

This cache has been archived.

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Geocache Description:

Cobalt

The coordinates

Cache contents

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IYC2011 - Cobalt Mystery Cache

This cache has been archived.

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Geocache Description:

Cobalt

The coordinates

Cache contents

Attributes

Inventory

Bookmark Lists