Why a Laser Beam Umbrella Wouldn’t Work

As part of their ongoing “What If?” series, Randall Munroe of xkcd and Henry Reich of MinutePhysics explain why an umbrella made out of laser beams could not work despite how cool it would be to vaporize rain as it fell from the sky.

Stopping rain from falling on something with an umbrella is boring. What if you tried to stop rain with a laser that targeted and vaporized each incoming droplet before it could come within ten feet of the ground?

Laser Beam Umbrella
Lori Dorn
Lori Dorn

Lori is a Laughing Squid Contributing Editor based in New York City who has been writing blog posts for over a decade. She also enjoys making jewelry, playing guitar, taking photos and mixing craft cocktails.