The Barf-Beam, aka the puke saber, uses super bright pulses of rapidly changing wavelengths of light to make people disoriented and nauseous. And you thought the government made you sick now. A prototype of the device has been created by Intelligent Optical Systems. The vomit inducing flash light is currently headed to Penn State's Institute for Nonlethal Defense Technology for more complete testing.

In a world where I have studiously ignored non-space related machinery, why would I talk about the puke-saber? Well the inventors of this offensive crowd control device have quotes in the news article from FOX:

"There's one wavelength that gets everybody," says IOS President Bob Lieberman. "Vlad [IOS top scientist Vladimir Rubtsov] calls it 'the evil color.'"

This leads me to theorize, through my powers of inductive questioning that there is only one wavelength of light that makes the flash light victims hurl. I theorize that the rapidly changing wavelengths of light exist only to thwart attempts to counter the offensive 'evil color'. Of course it does seem logical that very bright pulses of rapidly changing light could be disorienting. However, I don't think that the rapid pulses would be too much different from strobe lights or television, which while possibly disorienting hardly induce vomiting with regularity.

Go forth yon nerds and find that wavelength.