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Imagine if you set one slinky off down those stairs, waited 2 seconds and then sent another one off. Same thing but with water, so it's just waves driven from the top of the stairs. The stairs look pretty uniform, so the waves are just travelling at the same speed and happen to line up.

Something that i'd like to do is go to the top of the stairs and oscillate the water myself timed so you could make patterns that moved or "flashed".

Climate oscillation.

vibrations are random, this is oscillation
*oscillation

Just an educated guess but I suspect it's a tiny correction for wind drift which has been exaggerated by the camera angle.

The effects I think your referring to are called the "Coriolis" effect and "Gyro drift" and while they would have a similar effect this is seems like far too short of a range for them to come into play even at the relatively low velocity of that shell. That said its possible that with such a big round like that sabot "gyro drift" and maybe some sort of torque effect from leaving the barrel might be at work...

Gyro drift is due to the fact that the spinning bullet/shell starts to be pulled out of line by gravity causing the originally stable oscillation to slowly get knocked out of whack dragging the nose of the round out of line causing the round to pull slightly towards the direction it's spinning (though with a stable modern round this is very very subtle and only really comes into play at at least 1-2mile plus ranges).

The Coriolis effect is due to the fact that the earth itself is spinning. Over very long ranges the earth itself moves relative to the path of the round and so for 1-2mile plus shots one may need to compensate depending on the velocity and ballistic properties of the round. (this is why snipers tend to operate as a team because the maths and reference material necessary to account for all this plus standard bullet drop, variable wind conditions, atmospherics etc. etc. as well as maintaining situational awareness is a big ask for one person.)

Like I said though it seems unlikely they would have such a pronounced effect at such a relatively short range, the camera angle is definitely exaggerating what ever is going on there.


EDIT: I just watched it again, pretty sure it's just the camera angle (camera is slightly off to the left) I think the shell looks like it's actually travelling dead straight.

They should be able to drop it if they get oscillation problems, I posted another video where that happened to another Chinook (that time a stripped bare one being lugged by another of the same).

*related=http://videosift.com/video/CH-53e-lost-control-over-CH-47-Chinook

That's not a tank slapper that's a high-side!

A tank slapper is when the bars repeatedly flick violently from side to side due to a resonant oscillation
http://www.youtube.com/watch?v=LZ1srcQMa_0
(for reference: off the brakes, don't fight the bars and accelerate gently out of it before changing your underwear)

This video however was a high-side: You accelerate too hard exiting a corner causing the rear to break traction and slide. When you come off the power this makes the rear wheel grip again suddenly causing the bike to violently flick back into line and throwing you up and out of the seat (and usually off the bike all together). http://www.youtube.com/watch?v=5J4fdc_G2cA

Who says motorcycles are dangerous eh?

vocal chords are an oscillation that creates a frequency, as is a guitar string or a sax reed. hence the waveforms are similar. then just fuck with it with delays, pitch shifting, compression, phasing, and all manners of eq.

still rotates very slowly at night. most likely vibrations in the ground maybe oscillates? put a cloth under it. problem solved!

It's kind of a clever one, but his hand is providing the input energy. If it really worked, he'd bolt the magnet to the baseplate and walk away. It depends on subtle oscillations in the force on the ball (i.e. tiny oscillations in the distance of the magnet). It may not seem like much, but the energy to provide that is substantial relative to the energy necessary to rotate well machined bearings.

It's a subtle wind current acting upon the single leaf shaped like the natural airfoil that it is. Maybe an oscillation effect set-up on that springy stalk. Be great fun to catch this tripping shrooms in the woods...If you walk in the forest enough you'll see it-

Ya, there is a group using this visualization to show that "gravity is a lie" so your spidey sense is right on the money. When you get down to it, the motion around the center of the galaxy is inconsequential, the orbit of the planets around the sun would be the same. And the gay spiral bs at the end, well, that is not taking into account the motion of the galaxy through deep space, making the the pattern of our motion through space just look like an oscillating mess, not a spiral. Not to mention we might get ejected when Andromeda smashes into us. In the end, all the mass in our solar system was created with angular momentum around the galactic core, and internally, the system was embedded with angular momentum around the sun.

Well, it looks like the crane starts to flex or oscillate right before the operator tries to swing the heavy end over to keep it from tipping. Couple that with the elevated center of mass and...well, you saw it. Not sure what caused it to start warping horizontally like that. Maybe a tension line snapped? Or the pulley got stuck and suddenly let go? Dunno. Regardless, that's not gonna buff out.

I imagine it's a result of various forces and circumstances (I don't think it's a coincidence that the droplets were soapy water which would increase it's surface tension/bubble strength).

Also keep in mind that a droplets surface would be a mesh of the outermost water molecules held together by their polar attraction. As the sphere bounces and moves its surface would have mini waves and ripples along it that would push against and then move away from the molecules on the water surface below it as the kinetic and polar forces acted.

If you imagine that every sphere of water had portions of its surface moving away from the water surface below and then oscillating back towards the surface while the molecules on the spheres surface that had been touching the water surface below would begin to oscillate back into the sphere.

This would create many points of contact oscillating against and away from the water surface below and thus there might not be enough contact/pressure between the 2 surfaces for it to coalesce at any given time. Imagine bugs whose feet are tiny enough for them to "stand" on water due to surface tension and the principle would be the same. It'd be like an infinite number of these bugs legs jumping up and down on the water at a microscopic level.

Also I'm not familiar enough with how water molecules align themselves while at the surface of something so perhaps the alignment of their atoms helps as well?

Thats all a guess though I'm sure you could google the real answer.

My favorite of the list is Greatbatch, and his story really gets to the value of inspiration and curiousity as an inventor. He was just making a device to record heart beats, and put in an incorrect resistor for his circuit, resulting in a oscillating blip in his recordings. Instead of going 'fuck! I made the goddamn thing wrong! So I threw it on the grooooound!' No he said, 'Woah, thats neat, I have sort-of a built-in time guage that is very regular in my recordings, and can see how irregular the heart beat is ... wait a minute...', and then proceeded to work on the completely crazy idea of an implantable, miniature device to electrically stimulating the heart to keep it beating evenly as people just walked around.

I'd argue that its basically impossible to accidentally invent something. You have to be bright enough to recognize something interesting, and curious enough to follow it off in the direction it leads.