Caltech scientists are developing laser-driven lightsails that could push spacecraft beyond our solar system. Their research ...
On the other hand, you do not need any kind of power source to use a tape measure. Since laser measurement technology is so old, you could find laser distance meters from just about any source.
MKS Instruments, Inc., a global provider of enabling technologies that transform our world, has announced the Newportâ„¢ 819-SL ...