Comments on: Spinning Fan Optical Illusion

By: Ms.Observant

Ms.Observant — Fri, 09 Oct 2009 00:34:19 +0000

omg. that second one is crap. it doesnt look like its movin at all ppl, GET REAL!

By: Anonymous

Anonymous — Sat, 23 May 2009 03:52:38 +0000

Before you call this fake, learn how a helicopter works!
They do not change rotorspeed at all!
When the pilot pulls the collective lever to gain more lift, the only thing that happens is he increases the angle of attack on the rotorblades. The rotorspeed however is constant!
This video can perfectly well be real!

By: Anonymous

Anonymous — Mon, 18 May 2009 21:55:00 +0000

Oh fer cryin out loud. Some of you got it, most did not. The camera is shooting at the same rate at which the blades are spinning. They DON’T go faster at all – they change their pitch and angle of attack – the spin rate is constant, thus the illusion that they are not moving.

By: Anonymous

Anonymous — Tue, 07 Apr 2009 11:07:00 +0000

I think the helicopter’s just a toy hanging in front of the camera while there was a real helicopter passing to create the sound. Or the sound was editted, which is also an option. Still quite a good one.

By: Anonymous

Anonymous — Mon, 23 Mar 2009 03:42:00 +0000

i think it may be real, if you look closly at the blades you can see they do in fact move, not very much but it gves the impression that it is just to fast for the camera to pick up

By: Anonymous

Anonymous — Tue, 10 Mar 2009 15:35:00 +0000

Maybe you are the guy who could answer this. Why, in shots of jet engine exhausts, specifically the SR-71’s, does it look like multiple ignitions in the exhaust trail, rather than one long continuous flame. It is quite unique and I have wondered if it is an optical illusion or something else. I don’t know any aeronautical engineers to ask.

By: Anonymous

Anonymous — Sun, 01 Feb 2009 00:01:00 +0000

haha its kinda obvious that it’s a toy plane with a string attached to it. the sky is just a painting or a photograph, and the sound was probably taken from a different video

By: STARSHIP

STARSHIP — Mon, 15 Dec 2008 04:54:00 +0000

The helicopter is true, the camera can’t pick up the fast blades, i get the same thing after flying for a few hours, you can see the blades spinning and they look like that.

By: Autotronics94

Autotronics94 — Fri, 21 Nov 2008 19:38:00 +0000

Dude, it’s so obvious, the blades are oriented to spin at the exact speed, in FPS (Frames Per Second) that the camera records

By: Anonymous

Anonymous — Thu, 13 Nov 2008 00:03:00 +0000

I couldn’t tell whether it’s fake or not, but i agree on that during these manouvers the rpm rate would have to change due to the quite significant change of the g force. it’s like banking an aircraft makes the rpm drop due to increased g-forces. a pilot can compensate for that it would sure take at least some time to adjust. an autopilot would do the same, probably faster, but definitely wouldn’t keep the rpm perfectly constant like this video implies.