Some books say it is, and some books say it isn't.Is that true?
I'm agreeing with David Ewing Duncan, who gives this explanation is his book "The Calendar". It sounds extremely plausible to me.
Some books say it is, and some books say it isn't.Is that true?
Don't forget the Dakota or Chipmunk.Why does the Battle of Britain Flight include a Lancaster? (and the Hurricanes and most the Spitfires are the wrong mark)
Additive and subtractive, innit?Also: if the primary colours on TV screens, computer monitors and human retinas are red, blue and green, which are they red blue and yellow in paint? That is, if you mix red and green paint, why don't you get yellow?
The additive color system involves light emitted directly from a source, before an object reflects the light. The additive reproduction process mixes various amounts of red, green and blue light to produce other colors. Combining one of these additive primary colors with another produces the additive secondary colors cyan, magenta, yellow. Combining all three primary colors produces white.
Television and computer monitors create color using the primary colors of light. Each pixel on a monitor screen starts out as black. When the red, green and blue phosphors of a pixel are illuminated simultaneously, that pixel becomes white. This phenomenon is called additive color.
Photographs, magazines and other objects of nature such as an apple; create color by subtracting or absorbing certain wavelengths of color while reflecting other wavelengths back to the viewer. This phenomenon is called subtractive color. [...]
The subtractive color system involves colorants and reflected light. Subtractive color starts with an object (often a substrate such as paper or canvas) that reflects light and uses colorants (such as pigments or dyes) to subtract portions of the white light illuminating an object to produce other colors. If an object reflects all the white light back to the viewer, it appears white. If an object absorbs (subtracts) all the light illuminating it, no light is reflected back to the viewer and it appears black. It is the subtractive process that allows everyday objects around us to show color.
Color paintings, color photography and all color printing processes use the subtractive process to reproduce color. In these cases, the reflective substrate is canvas (paintings) or paper (photographs, prints), which is usually white.
Given that cats always land on their feet, it's possible to make a perpetual motion machine by strapping a piece of buttered toast to a cat's back and dropping the cat from height.If toast always lands butter-side down - why not butter it after you drop it ?
By being good at football.How footballers get away with ridiculous hairstyles.
Given that cats always land on their feet, it's possible to make a perpetual motion machine by strapping a piece of buttered toast to a cat's back and dropping the cat from height.
By being good at football.
This isn't a hard question, even for me, and I don't care about football.
Surely strapping the paws to the buttered side would yield that result....