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 Symbol Originating from the Latin infinitas which means âunboundednessâ, infinity is the concept of endlessness or limitlessness most widely tackled in the fields of mathematics and physics. The very first person known to have written about the concept of infinity was Archimedes, more than 2300 years ago.