cant see airplane propeller spinning, but u can thru camera?

[JTsyo]

aliasing

this

Prop: 100100100100
Camera with 1/3 the rate of the spin rate sees: 1111
For you, since the 0 outweigh the 1s just see a blur.

 

[BoberFett]

If that turbo prop was on a treadmill and you were next to it taking a picture.. would you still be able to see the blades?

Only 99.999% of the time.

 

[Nyati13]

If that turbo prop was on a treadmill and you were next to it taking a picture.. would you still be able to see the blades?

Unless you lean in too close, and then you'll never see anything again....

 

[JTsyo]

Unless you lean in too close, and then you'll never see anything again....

not necessarily. Don't forget the model that walked into one.

 

[Josh123]

When I go to Subway I eat chips and stare at the air conditioning unit on top of the building next door and watch the fan spin.

 

[Rubycon]

Make water go in reverse too!

http://www.youtube.com/watch?v=mODqQvlrgIQ

:biggrin:

 

[Phoenix86]

Same reason why car wheels on TV sometimes appear to be spinning backwards.

Why would you put spinners on a propeller?

 

[foghorn67]

Surface tension.

 

[BrokenVisage]

The treadmill takes off.

 

[AlienCraft]

The treadmill takes off.

Whew, thought I was going to have to do it.

 

[CZroe]

Anyone who doesn't know the answer to this get's a facepalm from me. You should've been asking questions about the car tires that spin backwards on TV and figured this out when you were a kid.

 

[blankslate]

but with my $99 canon point n shoot i can see the blades spin.

why?

Because the optics of 99 dollar cameras are superior to your eyes...

Therefore the logical course of action is to spoon out your eyes and then ask the doctors to implant camera optics into your eye sockets.