Pi is an irrational number (meaning the digits never end or have a repeating pattern) that is the ratio of the circumference of a circle to its diameter...this ratio is a constant for any circle, regardless of size.
The universal recycling symbol (U+2672 â² universal recycling symbol or U+267B â» black universal recycling symbol in Unicode) is an internationally recognized symbol used to designate recyclable materials.It is composed of three mutually chasing arrows that form a Moebius mÃ¶bius (strip an unending-single sided looped). surfacehe recycling symbol is in the public domain, and is not a trademark. The Container Corporation of America originally applied for a trademark on the design, but the application was challenged, and the corporation decided to abandon the claim. As such, anyone may use or modify the recycling symbol, royalty-free.
One of the most widely recognized prison tattoos, the teardropâs meaning varies geographically. In some places, the tattoo can mean a lengthy prison sentence, while in others it signifies that the wearer has committed murder. If the teardrop is just an outline, it can symbolize an attempted murder. It can also mean that one of the inmateâs friends was murdered and that they are seeking revenge.