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Laser Ceilometer
The method of uranium-lead dating.
Carbon 14 - it's the element used as a standard in radio-carbon dating.
In radiometric dating, the amount of a certain radioactive isotope in an object is compared with a reference amount. This ratio can then be used to calculate how long this isotope has been decaying in the object since its formation. For example, if you find that the amount of radioactive isotope left is one half of the reference amount, then the amount of time since the formation of the object would be equal to that radioactive isotope's half-life.
Communication medium is often decided by what is available. If all communication methods are available, determining factors would include price, quality, and relationship to the media method presentation required.
Rolling a six sided number cube and using the number on the top side.
On an object with unknown age but more than halflife of C
You cannot mine polonium as the longest lived isotope, polonium-209 has a halflife of only 100 years and most isotopes of polonium have halflives measured in seconds to minutes.Traces of polonium can be found in any uranium ore as it is a daughter of uranium decay.Usable amounts of polonium are manufactured using nuclear reactors.
If the isotope existed, it would have 16 neutrons.
If the isotope existed, it would have 16 neutrons.
Still me... by the way, this is an 8th grade science experiment so simplicity would be nice. Thank you for your assistance in advance.
President Lincoln decided that as a baseline for Southerners to return to the US after the war, the 1860 census of voters would be the determining factor in determining his 10 % policy. This would create the method of voters equal to ten percent of the vote cast in 1860., should an oath of allegiance and form of government the US would recognize and support it.