Just Wondering...

I was traveling down a residential street as a passenger in a car and I noticed something peculiar. Something dark was hovering in my peripheral field, just outside the window. I looked and saw a bird without visible wings that seemed to just hanging there in the air!

k

I read once in a physics book that absolute movement is totally imperceivable. So...if a given set is moving in the same direction, at the same time and at the same speed; you wouldn't see it move or you simply wouldn't see it?

k

The bird was probably traveling in approximately the same direction and approximately the same speed at approximately the same time (what ever that is) which would explain why it appeared to be hovering.

k

Why could I not see the birds wings? I understand persistence of vision, 24 frames per second and all that, but its wings were imperceivable. Obviously, the wings were moving faster than the bird, the car or me. How fast does something have to move in order to be imperceivable (and how long has the government kept this classified)?

k

I doubt that the bird's wings were moving faster than the speed of light. So, why is it that I can see light but I couldn't see the bird's wings? When I consider the factors; speed, direction, time and even size my only conclusion is more questions. Like: are there commercial applications?

k

I'm no math whiz, probably for the same reason that I do not suffer from an imagination deficit. There are sound waves we can't hear and light waves we can't see. I wonder what other things are whizzing around out there just out side our windows, even within our grasp, that we can't see? Ouch!

kkkkkkkkkkkkkkkkkk

P.S. Aren't you glad I wasn't driving?