So you thought bees had trouble with colours!

Beekeeping & Apiculture Forum

Help Support Beekeeping & Apiculture Forum:

Queens59 

Queen Bee
BeeKeeping Supporter
Joined
Jun 8, 2010
Messages
2,373
Reaction score
0
Location
Dartmoor edge, uk
Hive Type
national
Number of Hives
5...2 wooden National, 2 poly Nat & 1 poly nuc...bursting at the seams
Retires whimpering into the nearest corner.....
 

Saturn 

New Bee
Joined
Oct 16, 2010
Messages
11
Reaction score
0
Location
Fife, Scotland
Hive Type
none
Huh, interesting. Confirmed in Photoshop (RGB 139, 139, 139 in both squares).
 

victor meldrew 

Queen Bee
***
Joined
Nov 10, 2008
Messages
6,777
Reaction score
295
Location
Wigan
Hive Type
14x12
Number of Hives
6
Can't help thinking it's to do with true colour v pigmentation which of course reflects colour rather than emits colour , rainbow (coloured )pigments mixed absorb all light so appear black whereas all colours mixed make white light ??

John Wilkinson
 

PaleoPerson 

Field Bee
Joined
Jul 18, 2009
Messages
705
Reaction score
0
Location
Essex
Hive Type
14x12
Great way to freak out a teenager.

Printed in black and white and then told her to cut out the two squares and compare them, then put them back and the reverse them.

I am not sure I can continue ignoring the temper tantrums though :)
 

Repwoc 

Drone Bee
***
Joined
Oct 19, 2009
Messages
1,392
Reaction score
206
Location
Newport, South Wales
Hive Type
national
Number of Hives
6
Can't help thinking it's to do with true colour v pigmentation which of course reflects colour rather than emits colour , rainbow (coloured )pigments mixed absorb all light so appear black whereas all colours mixed make white light ??

John Wilkinson
That's Additive vs Subtractive colour.

With subtractive, you start with white light (daylight or fluorescent tube) which broadly comprises all visible wavelengths. Dyes/pigments in a substrate then selectively absorb parts of the visible spectrum and reflect the rest, so if eg blue-green (cyan) is absorbed and red is reflected, the substrate appears red. As stated, if you mix the three primaries all wavelengths will be absorbed making black.

With additive, you start with black (no light) and add coloured light (eg with red, green & blue phosphor dots in a tv screen) in proportion to achieve the desired colour. If the three primaries are mixed in equal proportion, the result is white.

Never heard it referred as true colour or pigmentation though.
 

Latest posts

Top