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 for good with Kim’s new eBook
Robocalls interrupt us constantly and scam Americans out of millions of dollars every year. Learn Kim's best tricks for stopping annoying robocalls in this handy guide.