I certainly know that the British SAS use blue light for any close quarters illumination, both for the alertness it brings and because the short wave-length light doesn't travel distance perceivably well to the naked eye, ensuring the enemy is 'kept in the dark'.
Frankly I'll stick with caffeine. I have to say that I would have loved to participate in this challenge but caffeine is definitely my 'crack'. Even the simple though of going without it for an hour is too much.
Frankly I'll stick with caffeine. I have to say that I would have loved to participate in this challenge but caffeine is definitely my 'crack'. Even the simple though of going without it for an hour is too much.
