A. Plutonium. The world's first nuclear explosion was achieved with plutonium, a man-made element produced in nuclear reactors. Plutonium is created when an atom of uranium-238 absorbs a neutron and becomes plutonium-239.
Infinity Tattoo Meaning. Infinity tattoos are steadily on the rise with many people opting to get these in one form or another. The infinity symbol, often used in mathematics, represents a never-ending loop and is depicted as a number 8 on its side. In the tattoo world this can be seen as a symbol of never-ending or limitless possibility. Some cultures also believe it to represent rebirth or reincarnation.
The (infinity sign) is highly popular math symbol. This could be attributed to the fact that âinfinityâ symbolizes that which has no ending, one that lasts forever. John Wallis came up with the concept of infinite things in 1655. The symbol was a deviation of an ancient symbol depicting a dragon chasing and wanting to eat its very own tail.