If you spin a propellor...

Performance doesn't matter, how cool would it be to have a speed of light fan!!

Cant see it but you'd hear it!

Could even have a little light on it
 
Erm the whole thing would spin the same speed!! the edges of a circle do not spin faster than the centre if that was the case cd's wouldn't work

Edges do spin faster than the centre. CD drives are designed to account for the difference.
 
Edges do spin faster than the centre. CD drives are designed to account for the difference.

okget a cd draw a line through it in the centre and then spin it using a reference point both lines would cross the same point at the same time if they didn't the lines would move
 
We see at 60fps, so if it appears in one of those it could be seen.
God good, not this tripe again.

It's all down to what you're viewing and the conditions (physical/mental) you're viewing it in. "frames" don't come in to it.
 
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ok, done that. The outside moved faster.
I drew a line from the centre to the edge then rotated the cd 90 degrees to the left.
The outside moved about 7cm and the inside moved about 1cm. They both did this in the exact same time, therefor the outside is faster.
 
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Angular velocity :p
 
Can it?

I thought that was the standard refresh rate. Can you enlighten me?

Doesn't matter at what speed it's moving at as long as it's in the humans eye refresh frame. We see at 60fps, so if it appears in one of those it could be seen.

No the human eye does not have a "refresh rate".

It is continuous and not all the cones/rods are in perfect sync.


60fps is merely the FPS at which most people don't notice too much flicker.
 
Erm the whole thing would spin the same speed!! the edges of a circle do not spin faster than the centre if that was the case cd's wouldn't work

epicfailkg.jpg
 
ok, done that. The outside moved faster.
I drew a line from the centre to the edge then rotated the cd 90 degrees to the left.
The outside moved about 7cm and the inside moved about 1cm. They both did this in the exact same time, therefor the outside is faster.

it's not faster when based on a set reference point (the inner point of the circle) plus you also increasing the inertia which plays a factor into the speed of a moving object at any one given time
 
it's not faster when based on a set reference point (the inner point of the circle) plus you also increasing the inertia which plays a factor into the speed of a moving object at any one given time
No it doesnt.
wikipedia said:
Inertia is the resistance of any physical object to a change in its state of motion.
Inertia has nothing to do with speed. It does affect acceleration tho.
 
I know it doesn't work EXACTLY like frames, but it seems like the 60Hz is a threshold between seeing something and it being a blur/not being seen.
Physical objects dont have a frequency tho? They are continuously in existence?
(in before: "doing some sort of phase shift in and out of existence" :p)
 
I know it doesn't work EXACTLY like frames, but it seems like the 60Hz is a threshold between seeing something and it being a blur/not being seen.

No you'll see something perfectly fine at 10 fps you'll just notice the gaps more, at 50 odd it's very flickery but at 60 it's more tolerable it's really not applicable outside of screens though. (even then mostly crts)
 
Right, wiki doesn't seem to know a lot more about it either. Pretty interesting that we apparently see continuously.

Does the brain continuously process the information as well?
 
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