Photography Reflector Material

In preparation of Progress M-11M/43P (#411) docking on 6/23 (~12:37pm EDT), FE-1 Samokutyayev & FE-4 Volkov worked through the standard 3-hr refresher training for the TORU teleoperator system, which provides a manual backup mode to the Progress' KURS automated rendezvous radar system. A tagup with a TORU instructor at TsUP/Moscow via S-band audio supported the training. [The drill included procedure review, rendezvous, docking data and rendezvous math modeling data review, fly-around, final approach, docking and off-nominal situations (e.g., video or comm loss).

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The eyes shine because of a special irridescent layer called the tapetum lucidum, behind the retina and around the optic nerve, that acts like a mirror. Light passing into the animal’s eyeball bounces offf the tapetum lucidum, giving the animal the ability to reflect (within its own eye) what little light is incoming, thus allowing it see in near darkness.

The eyes shine at night because that’s when the pupils are dilated wide enough for the tapetum lucidum to be visible.

And humans’ eyes don’t shine because they don’t have a tapetum lucidum. We’re not night-hunters, despire the evidence of lots of guys hanging around bars way after dark.=^ }

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