What If: Laser Umbrella

30 Nov 2014 • what-if.xkcd.com

It might seem easier to forget about targeting completely and just fire lasers in random directions. It solves ALL your problems, eventually. If you aim a laser beam in a random direction, how far will it go before it hits a drop? This is a pretty easy question to answer; it’s the same as asking how far you can see in the rain, and the answer is at least several hundred meters. Unless you’re trying to protect your whole neighborhood, firing powerful lasers in random directions probably won’t help.

And, honestly, if you are trying to protect your whole neighborhood … firing powerful lasers in random directions definitely won’t help.

LOL. Loving the first article I’m reading on this blog a friend turned me onto over the holidays.