Done with mirrors I bet!!?? Good grief man, how did they do that?
The blades are spinning so fast that the camera can't keep up and is catching it in the same frame every time. It's matching perfectly.
Turbine engines...
Some sort of controlledd autorotation? I've heard of engines being shut off and not being able to get started....resulting in a gliding movement.
If the engine was off...is there a seperate engine for the tail blade or is the gliding wind spinning tail blade.
Cohiba
If the engine was off...is there a seperate engine for the tail blade or is the gliding wind spinning tail blade.
Cohiba
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Military has gone gangsta and bought some sweet spinnaz:
Similar to the photography equivalent:
Frame rate matching blade rotation, not sure what this phenomenon is called without looking it up, but there's a name for it. Similar to when you were a kid watching the ceiling fan appear to roll backwards and forwards again without actually changing direction.
Similar to the photography equivalent:
Frame rate matching blade rotation, not sure what this phenomenon is called without looking it up, but there's a name for it. Similar to when you were a kid watching the ceiling fan appear to roll backwards and forwards again without actually changing direction.
i did a science experiment on that in high school. was able to show that what i called the "frame rate perception" of humans are different from person to person using a variable speed fan. crank it up till the user sees stationary blades & measure the rpm. certain medications were shown to greatly decrease or greatly increase the perception rate.. but the most interesting thing of all is that with practice a user could mentally make the stationary blade effect move one direction, stop & move it back the other direction voluntarily. with training its possible to work that like a muscle and literally increase your "frame rate perception" even though human eye/brain isnt really "frames". i theorized that by "exercising" that "muscle", for lack of a better term, had a much farther reaching effect than just vision.
try it next time you find yourself staring at a cieling fan running at just the right RPM. on average it took about 30 minutes to get to where people in the study could control it. its like learning to move a limb for the first time. if you manage to pull it off, watch it while you drink a lot of your preferred alcoholic beverage.
pretty far out stuff imo.
try it next time you find yourself staring at a cieling fan running at just the right RPM. on average it took about 30 minutes to get to where people in the study could control it. its like learning to move a limb for the first time. if you manage to pull it off, watch it while you drink a lot of your preferred alcoholic beverage.
pretty far out stuff imo.
The shutter speed has been sync'd (on purpose, or through freakish accident) to match the RPM of the main rotor (~240 RPM)
If the shutter opens/closes 1/240s -or once cycle every .00417 seconds - (fast shutter eliminates motion blur) then it would appear the main blades do not move.
Notice how the tail rotor is moving - that's because it has a dynamic RPM - the RPM is always adjusting based on the pitch/yaw of the copter and where the pilot wants to steer it.
Incidentally, you'd never see this at night. Really. With such a fast shutter as 1/240s, light would have a difficult time exposing the image sensor. Only because this is taken outside on a stark sunlit day is there enough light available to see the subject.
If the shutter opens/closes 1/240s -or once cycle every .00417 seconds - (fast shutter eliminates motion blur) then it would appear the main blades do not move.
Notice how the tail rotor is moving - that's because it has a dynamic RPM - the RPM is always adjusting based on the pitch/yaw of the copter and where the pilot wants to steer it.
Incidentally, you'd never see this at night. Really. With such a fast shutter as 1/240s, light would have a difficult time exposing the image sensor. Only because this is taken outside on a stark sunlit day is there enough light available to see the subject.
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