02-12-2017, 02:21 PM
Scary, isn't it? But don't worry, the mega-powerful 20-W lasers at the Kecks will destroy any alien invasion force before they can even land. Imagine that, a laser that uses less power than a typical household light bulb being such a lethal weapon.
Eric - minor correction - the lasers excite sodium atoms in the upper atmosphere (not dust) to produce an "artificial guide star". I doubt any laser light even leaves the upper atmosphere as the light gets absorbed in the sodium layer.
But if lasers are such a scary technology, then we need to shut down all the places and people that use them, including hospitals, eye surgeons, CD, DVD and Blueray manufacturers, most industries, law enforcement, and shops.
Eric - minor correction - the lasers excite sodium atoms in the upper atmosphere (not dust) to produce an "artificial guide star". I doubt any laser light even leaves the upper atmosphere as the light gets absorbed in the sodium layer.
But if lasers are such a scary technology, then we need to shut down all the places and people that use them, including hospitals, eye surgeons, CD, DVD and Blueray manufacturers, most industries, law enforcement, and shops.