Notes and Reflections on Books and Media
by Hannah Leitheiser
Inventions of the Great War
A. Russell (Alexander Russell) Bond
"When U-boat commanders took observations on a ship painted with a "dazzle" camouflage, they saw a shimmering image which it was hard for them to measure on the fine graduations of their periscopes." - Inventions of the Great War
If U-boats stayed up for long, they'd be spotted, so they had to quickly get a enemy ship's bearing, heading, speed, and range. This was an attempt to confuse their efforts.