NIGHT VISION MONEY
You
can be a dork at times and hand out the wrong currency notes, especially in a
dim lit cab. Don’t expect anyone to rectify your mistakes…your loss is another
man’s gain! Tough luck and be careful till the agencies get the heads up on
inventions like the Luminous Paper Money. Notes that emit a soft glow, just
enough to ensure you hand out the correct note; nothing more nothing less

In biological night vision, molecules of rhodopsin in
the rods
of the eye
undergo a change in shape as they absorb light. Rhodopsin is the chemical that
allows night-vision, and is extremely sensitive to light. Exposed to a spectrum
of light, the pigment immediately bleaches, and it takes about 30 minutes to
regenerate fully, but most of the adaptation occurs within the first five or ten
minutes in the dark. Rhodopsin in the human rods is less sensitive to the
longer red wavelengths of light, so traditionally many people use
red light to help preserve night vision as it only slowly depletes the eye's
rhodopsin stores in the rods and instead is viewed by the cones.
However the US submarine
force ceased using red lighting for night adaptation after studies found little
significant advantage of using low level red over low level white lighting.[3]
[4] Many
animals have a tissue layer called the tapetum lucidum in the back of the eye that reflects light
back through the retina, increasing the amount of light available for it to
capture. This is found in many nocturnal animals and some deep sea
animals, and is the cause of eyeshine. Humans lack a tapetum lucidum.
Nocturnal mammals have rods with unique properties that make enhanced night
vision possible. The nuclear pattern of their rods changes shortly after birth
to become inverted. In contrast to contemporary rods, inverted rods have heterochromatin
in the center of their nuclei and euchromatin
and other transcription factors along the border. In addition, the outer nuclear layer (ONL) in nocturnal mammals
is thick due to the millions of rods present to process the lower light
intensities of a few photons. Rather than being scattered, the light is passed to
each nucleus individually.[5] In
fact, an animal's ability to see in low light levels may be similar to what
humans see when using first- or perhaps second-generation image
intensifie

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