1. Applications of 1/2 life Radioactive Dating C-14
C-14 begins to decay to N-14 when an organism dies
Used to date organic materials aged up to 60,000 years.

2. In 1991 the Iceman was discovered
In 1991 the Iceman was discovered. Less than 50% of the C-14 atoms had decayed.
T = 5730 y
the age of the Iceman was determined to be approximately 5300 years old.

3. The mummified carcass of the 39,000-year-old woolly mammoth, which included the brain with folds and blood vessels visible, was found in August 2010 on the Laptev Sea coast near Yukagir, Russia. The mammoth, named Yuka, was 6 to 9 years old when it died, the researchers found.

4. Bog Bodies

5. The End