|Before we try to better understand the trickier abstract stuff, we can look at the really "obvious" stuff: the things our perceptions reveal to us, the things we are looking at right in front of us. "There's more than meets the eye," it is said. How true that is! But in ways that can surprise, and those surprises can suggest ways to peer deeper into the subtle abstractions of science.|
Many of Earth's creatures have perceptions humans lack.
and can use them to do things we can't
Bees see polarization of light and can..??
Sharks perceive weak electric fields and can...??
Some bacteria and some birds perceive weak magnetic fields and can...??
Insects see some of the ultraviolet and can...??
Insect vision is without focused images as has human vision. They can...??
Bats and cetaceans perceive images with sound waves and can...??
have color richer
than human color
(to which humans are colorblind) and can...??
How do we know?
There's still an insurmountable problem: We can't actually experience these perceptions. We must "see" indirectly, usually with a good dose of mathematical analysis. This is "seeing" at the edges of (easy) human comprehension. (Though some of it is well within the limits of easy comprehension for those "lower" animals.)
On the other hand, sometimes what
is more what we would like to see
than what is actually there.
So we are rich in:
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