I grew up in a 90% glass house in a forest.
This happened daily when birds tried to fly through the invisible walls.
It was a jump scare every time when the wall suddenly gonged like they’d been hit with a mallet, drawing your attention to the often fluttering bird dropping.
I loved that house, but hated it every time that happened. 🙁

If there's one design flaw with human beings, I'd say it's that we don't have little fluttering brush arms cleaning our nostrils at all times.

The kid in me dreams 2 seconds after the video ends, the Monarch flutters away, the koala gazing in awe.

The adult in me knows 2 seconds after the video ends, the koala grabs the Monarch, crushes it, then pops it in his mouth and starts chewing.

Wikipedia
"The combat side stroke is a relaxing and very efficient swim stroke that is an updated version of the traditional sidestroke. The CSS is a mix of sidestroke, freestyle and breaststroke. The combat side stroke allows the swimmer to swim more efficiently and reduce the body's profile in the water in order to be less likely to be seen during combat operations if surface swimming is required. The concept of CSS has been that it can be used with or without wearing swim fins (flippers), the only difference being that when wearing swim fins the swimmer's legs will always be kicking in the regular flutter kick motion without the scissor kick. This stroke is one of the strokes that can be used for prospective SEAL candidates in the SEAL physical screening test (PST), which includes a 500-yard swim in 12 minutes 30 seconds to determine if the candidate is suitable to go to the Basic Underwater Demolitions/SEAL school.

Basics

The combat side stroke utilizes the three main fundamentals of swimming:

Balance: There are two things that affect your balance in the water - the head and lungs. Most people when swimming, especially when using breaststroke, will swim with their head up[citation needed] which forces their hips to sink down which is like they are swimming uphill and is a sign of being less comfortable. However, if the body is flat/horizontal or more parallel to the water-line it is far more effective and will allow the swimmer to feel more comfortable in the water.
Length: The taller the person is, the faster the speed through the water. As a result, it is important that the swimmer is fully stretched horizontally in the water, as this will reduce the body's drag through the water and allow a higher speed.
Rotation: In most sports, such as baseball, when the batter swings the baseball bat they will rotate the hips to increase the power of the swing. The same principle is applied to swimming. If the swimmer engages the hips and uses the body's core muscles it will increase power."

You rather nailed it.

OK, I can kind of get on board with this, but who the hell designed this one? How stupid can you get to make it stop if the cat touches the screen? It should require a specific pattern to stop, and otherwise just react to touches, like make the moth turn around and flutter, or make the mouse squeak if the cat touches it. Going back to the static start screen is terrible and defeats the purpose, no?

When I play bass or guitar I seldom use a pick (instead, the thumb and index finger together using index nail as a pick) & I employ a two-finger flutter as well because I too, love the sound of flamenco

Still working on the whole slap-action, miles to go before I sleep. I think you have to have more African in you than I have to sound like Larry Graham

Lol it's one eyelid is fluttering up and down. If it could speak it'd be like 'Ooooh that's the spot. I can never get back there for a good scratch!"

For evidence again

In reply to this comment by Fusionaut:
Did this video make your penis flutter? If it did then it must be sinful and evil.

I used to think that you were just a delusional, fundamentalist, evangelical, and fanatical Christian but I have just realized that you are something else as well. You are a troll.

Matthew 26 says:

36 “Teacher, which is the greatest commandment in the Law?”

37 Jesus replied: “‘Love the Lord your God with all your heart and with all your soul and with all your mind.’[a] 38 This is the first and greatest commandment. 39 And the second is like it: ‘Love your neighbor as yourself.’[b] 40 All the Law and the Prophets hang on these two commandments.”

It is evident to me that you are trying to obey the first law but you should strongly consider following the second one as well. Sooner later you will be banned for the insulting and hurtful things that you say on the sift.

If you are only on the sift to be mean to others then I suggest that you stop using it altogether now before you don't have a choice in the matter. If you are on the sift because you enjoy funny, interesting, strange, beautiful, obscure, amazing videos then continue using it but refrain from your insults.

In reply to this comment by shinyblurry:
@<a rel="nofollow" href="http://videosift.com/member/UsesProzac" title="member since August 2nd, 2007" class="profilelink">UsesProzac Do you have even a modicum of dignity or self respect? You have promoted yourself as a harlot and you draw mens attention with lasciviousness. You are prostituting yourself and it is revolting.

Mine just kinda flutter up and down. Must be the A.D.D.

Ha, don't have the time to watch that now, but watched up to him talking about disturbances and flutters and ripples in the force, and the guy's hand movements for 'ripple' made me laugh, so this looks good... upvote

First thing I thought, "It's what, 640x480?" What a crap resolution.

Also, having that in front of your car window is like having someone fluttering their hands in front of your face while you're driving.

Make for a simpler teleprompter though... video conferencing where you're not seemingly staring at the person's chest/over their head/off into space.

I saw an owl a few month ago. I thought it was a moth fluttering right near my head, and swatted it away. I realized that it was still too cold for moths, and that an owl had just alighted on a tree, about 30 meters away. Huge. Didn't make a sound. Gone again in a blink, leaving the branch deeply swaying. Almost scary.

Now, if I was a rodent, this silent night-vision hunter would be the size of a Cessna .

Why would an AICD care about A-fib or A-flutter? Aren't they designed to break V-fib?

As to external shock, the defibrillator's leads are inserted some distance apart inside the heart, so the electrical path of least resistance shorts across the heart muscle and doesn't travel externally.