Lasers are intensely focused beams of light that serve a variety of industrial functions. Some laser beams are even hot enough to melt metal or carve artwork. Other lasers, however, are fine tuned with a gentle touch so they can scour and clean surfaces without damaging them. This leads to precision cleaning that’s fascinating to watch and listen to.
Stop robocalls once and for all
Robocalls are not only annoying, but they scam Americans out of millions every year. Learn Kim's tricks for stopping them for good in this handy guide.