REMARKABLE FACTS ABOUT COLOURS THAT YOU NEVER SAW COMING
Added on: 4th Nov 2016
HIGHLIGHTERS TEND TO BE YELLOW BECAUSE
THEY DON'T LEAVE A SHADOW ON THE PAGE
WHEN THEY ARE PHOTOCOPIED
THE US ARMY USES COLOUR-BLIND PEOPLE TO
"SEE" CAMOUFLAGE. THIS IS BECAUSE THEY
PERCEIVE CERTAIN COLOURS IN A WAY THAT
PEOPLE WITH NORMAL VISION DON'T
STUDIES HAVE SHOWN THAT REDHEADS CAN
REQUIRE UP TO 20% MORE ANAESTHESIA
DURING SURGERY
DURING THE MIDDLE AGES, DYERS OF FABRIC
WOULD EITHER DYE RED OR BLUE. BOTH GROUPS
HAD THEIR OWN GUILDS AND FORBID THEIR
MEMBERS FROM DYING WITH THE OPPOSITE
COLOUR. SO PURPLE CLOTHING WAS RARE
CHEDDAR CHEESE IS ONLY ORANGE BECAUSE
IT IS DYED. IN REALITY, ITS COLOUR CHANGES
ACCORDING TO THE SEASON AND THE COW'S
DIET. FARMERS STARTED DYING IT TO AVOID
THESE COLOUR FLUCTUATIONS
DURING THE 1980’S, SCIENTISTS SHOWED THAT AN
ENZYME IN GREEN COFFEE BEANS COULD TURN
ANY BLOOD TYPE INTO TYPE O, THE UNIVERSAL DONOR
FIRE HYDRANT COLOURS CAN BE USED TO DETERMINE
THEIR WATER FLOW AND PRESSURE
IN 1962, CRAYOLA'S "FLESH" COLOUR WAS
RENAMED "PEACH"
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