You must dial the number 2 before the four-digit extension when utilizing our main number (562-826-8000) to reach an extension. The change has no impact on direct lines. Here is the new format: 562-826-8000, ext. 2xxxx.
Tweet Share Email. Up until midcentury, the fastest thing in the world, apart from light, was sound. Travelling at 343 meters per second (1230 kph or 767 mph), sound was faster than even the most devastating craft of war.
The fastest thing in the whole. universe is the speed of light in a vacuum (like outer space!), clocking in at a great 2.99 x 10 8. m/s. Light. travels in waves , and we call this traveling propagation . Propagation of waves has both a speed and a. direction, called the velocity . The velocity of light changes depends on the material it travels through. Light waves can be changed in a few different ways. Reflection is when the waves bounce off a. surface and change direction, like when they hit a mirror or pool of water.