Great Equations t shirt by Guy Pendlebury

1) Newtons second law of motion (force applied to an object is it's mass x acceleration). The basis of most practical engineering mechanics. 2) Archimedes calculation of Pi - Pi has been around for a very long time, even before Archimedes, but it was he who narrowed it down to an acceptable value. Pi is used in so many things, from shoe size distribution to Heisenberg's Uncertainty Principle... important! 3) Everybody knows about Einstein's most famous equation that states "Energy is equal to an objects mass x the speed of light" although the famous equation deals with mass at rest, the equation in our design is the less known but much more important (yet difficult to calculate) mass in motion. 4) Maxwell's beautiful equation that united electricity and magnetism among other things. Not bad! 5) Dirac's Equation. Paul Dirac can be thanked for many equations, but this is the relativistic quantum mechanical wave equation which provides a description of elementary spin particles such as electrons. This is the equation that demanded the existence of antiparticles and actually predated their experimental discovery, making the discovery of the positron, the antiparticle of the electron which is one of the greatest triumphs of modern theoretical physics. 6) Fermats "Little" Theorem - Fermats "Last" theorem gets a lot of attention, but this little theorem is the one that does all the work. Basically it states that if you take any number and raise it to the power of p -1, where p is prime, the result will be one more than a multiple of p, which with a small tweak and much bigger numbers, enables anyone to encode data. This is one of the backbones of the internet. Thank you!