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PT117 Tennessine Traditional Cache

Hidden : 5/18/2014
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size:   small (small)

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Geocache Description:

20/11/2017 Update: I will be maintaining The Periodic Table series until the end of 2017. After that either they'll slowly fade away, one by one. Or, if someone else wants to take over all or part of the series I'll happily pass over to them. I can even supply the tubes that are currently being used. BlaKids.

Welcome to the periodic table of the elements power trail. There are 117 caches to represent each element on the periodic table as of 18 May 2014.




The cache containers are small tubes similar to that shown in the picture below


These containers have only a logbook inside them and no pen/pencil. Please make sure to BRING YOUR OWN PEN.

An article published in Physical Review Letters on 5 April 2010 (submitted 15 March 2010, "Synthesis of a new chemical element with atomic number Z=117", claims the identification of six atoms of the isotopes 293Uus (five atoms) and 294Uus (one atom) in fusion reactions between 48Ca and 249Bk.. Source: Webelements.

6 May 2014 "Element 117 or ununseptium has taken a step closer towards being given a place on the periodic table after an international team of researchers confirmed its production and made a more detailed analysis of its decay profile than when the element was first reported. It joins the slowly but steadily expanding list of so-called superheavy elements (SHEs), which do not occur in nature but can only be made in specially designed reactors. The element was created at the GSI accelerator laboratory in Germany where an upgraded detector demonstrated its ability to pinpoint isotopes with long half-lives, a key challenge in the search for long-lived SHEs that occupy an ‘island of stability’ – something that has been postulated but not seen so far.

The research effort involved more than 70 scientists and engineers from 11 countries. A target of purified berkelium-249, produced at the Oak Ridge National Laboratory in the US, was bombarded with a high energy beam of a neutron-rich isotope of calcium at the GSI lab, resulting in the occasional fusion of the two nuclei. ‘You produce literally only a few atoms over several weeks and these have a half-life of about 50 milliseconds,’ says team leader Christoph Düllmann of Johannes Gutenburg University of Mainz in Germany." Source: ChemistryWorld

In November 2016 the 117th element was named 'Tennessine'.

This power trail starts at Mount Henry Bridge and continues south down the freeway cyclepath. This power trail is designed for bicycles or walkers and will be extremely hard, if not impossible for drivers. There is however a car park and a playground near the start.

Please stay safe and enjoy the power trail.

Additional Hints (No hints available.)