2012 Event Scientists create a 'magic carpet' using optical fibers to help prevent elderly people from falling by detecting when unusual footsteps are taken 2012 Event Construction of The European Extremely Large Telescope (E-ELT), the world's biggest optical telescope is approved 1969 Event University of Arizona reports 1st optical id of pulsar (in Crab Nebula) 1870 Event Fred Goldsmith demonstrates curve ball isn't an optical illusion 1763 Birthday Claude Chappe, French engineer, optical telegraph
