Why is the reflective index of glass greater than the reflective index of water? Why is the choroid coat shiny? Why are concave mirrors used in telescopes? Why do animals' eyes reflect light? Why metals are opaque. Why do clouds usually form high in the air instead of near Earth's surfa...
[translate] aA car has parked in front on a blue reflective cats-eye marker. Why is this wrong? 汽车在前面在一个蓝色反射性猫眼睛标志停放了。 为什么是这个错误?[translate]
“This is an adaptive feature in animals who tend to be hunters at dawn and dusk,” Dr. Miller says. “The eyes of these animals are geared for low-light vision. They include dogs, cats, cattle, deer,horsesandferrets. However, humans and primates do not have the tapetum lucidum — and...
Some animals’s eyes shine in the dark because there is a special reflective layer at the back of their eyeballs (called tapetum lucidum) that increases the amount of light absorbed by the photoreceptors in their eyes. As a kid, I always believed that cats and dogs had some form of ‘or...
Why do animals' eyes reflect light? Why do scientists use microscopes? Why is the cornea transparent? Why do hurricanes have an eye? Why do cats have whiskers? Why do metals reflect light? Why is the reflective index of glass greater than the reflective index of water?
“In one instance,a user had become very attached to the robotic doll,carrying it everywhere. One day,the user was extremely upset and cried because she believed the robotic doll had ‘died’—it no longer opened its eyes or responded to her. The distressing experience spread to other users...
These questions stress the need to make sure that we are cutting mental phenomena into the appropriate kinds. A common strategy here is to turn toward neurology or development, in order to see whether observed phenomena share the same neural underpinnings or develop from the same roots. However,...
In truth, the album openers are sonic red herrings — the Old Taylor wasn’t quite as dead as she’d tell us on that lead single. Most of Reputation caters in reflective synth-pop that isn’t a far cry from 1989: the lilting “Delicate,” the coyly seductive “Dress” and the ...
Day 20: My uniform has become a subject of question. Each pair of eyes that fix their gaze on the ink, I share the story of our Palestinian compatriots. The initial responses are the same: disbelief, followed by productive conversation on our moral responsibility to educate ourselves on the...
Another question concerns sparkle, orspeckle. If you've ever shone a laser on a reflective surface (even a white wall), you've probably seen the speckle. It is the sparkly bits in the overall reflected light. There are a number of factors that contribute to speckle, but for the most pa...