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Old 04-15-2014, 06:10 AM
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Default Slow your post-mo videos

Ding's post in the Lone Ranger thread got me thinking about the many slow motion videos I've seen over the last couple years. We've probably all seen the basic slow mo stuff but as frame rates have gotten faster and cameras cheaper there has been a huge explosion of slow mo video and not just all explosions, which mythbusters has a patent on by now.

I've embeded the first but most are in link form because not all are at youtube and too many embed videos at once makes my browser cry, then explode.

Golf ball into a steel plate at 150mph.
It's amazing how many hard objects only appear that way.


Bullets at a million frames per second, shot against different surfaces.

This is my absolutely favorite slow motion video, the splash the lead makes as it hits steel is amazing. You can also see the bullets split along the riffling lines and the pressure wave bounce back and balloon out the concave base as it's smashing into the steel.

Water droplet bounce
A water droplet placed on still water doesn't just absorb in but ejects back out about half of the drop which then bounces due to surface tension before repeating.

Vacuum Cavitation shatters glass bottle bottom.
The slow-mo guys are an entire channel built around screwing with a high speed camera, many of their videos are good.

hand Guns fired Underwater
Back to the slow-mo guys where they expose the cavitation shock waves produced by a semi-automatic and revolver handgun.

AK-47 fired underwater
The second half of the previous video, this time with a riffle instead.

Humming bird hover.
Multiple hummers at a feeder and water bath
The second video isn't as slowed down but shows a lot more activity. Humming birds don't quite flap their wings up and down but fly with a treading water motion, only in air. Their tail feathers are used as a break to quickly stop their forward motion.

A slightly different way to slow time for oscillating objects, the rolling shutter effect,
Vibrational waves visible on guitar strings.

Mythbusters painting with explosives.
While I could just link to practically every mythbusters ever for excellent high speed shots, this one was amazingly beautiful. Slow mo shot at end.


And anything about slow motion isn't complete without a nuclear bomb. Captured 1 millisecond after the explosion the spikes are from the guy-wires being heated to vaporization by the heat pulse during detonation.


What I've learned from all of this is everything is waves.
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Old 01-14-2017, 12:15 PM
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Default Re: Slow your post-mo videos



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Old 01-14-2017, 03:26 PM
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Default Re: Slow your post-mo videos

Slomo at the 2 minute mark of a book exploding under pressure.

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Old 01-14-2017, 03:45 PM
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Default Re: Slow your post-mo videos

Suomi! Crazy Finnish person.
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Old 01-14-2017, 03:53 PM
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Default Re: Slow your post-mo videos

Quote:
Originally Posted by JoeP View Post
I love the gas fart out the entry hole at the end of the clip. Right after a small internal explosion of what I assume are gases...

I would like to see an end on view as well as the gel balloons out massively at the start.
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Old 01-14-2017, 05:37 PM
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Default Re: Slow your post-mo videos

Quote:
Originally Posted by slimshady2357 View Post

I love the gas fart out the entry hole at the end of the clip. Right after a small internal explosion of what I assume are gases...
I was thinking a tiny amount of unburnt gunpowder. Ignited, obviously, by the recompression of the gel.
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Old 01-15-2017, 08:31 AM
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Default Re: Slow your post-mo videos

Quote:
Originally Posted by Ari View Post
Ding's post in the Lone Ranger thread got me thinking about the many slow motion videos I've seen over the last couple years. We've probably all seen the basic slow mo stuff but as frame rates have gotten faster and cameras cheaper there has been a huge explosion of slow mo video and not just all explosions, which mythbusters has a patent on by now.

I've embeded the first but most are in link form because not all are at youtube and too many embed videos at once makes my browser cry, then explode.

Golf Ball Gets Hit By A 150 MPH Steel Plate In Slow Motion - YouTube
Golf ball into a steel plate at 150mph.
It's amazing how many hard objects only appear that way.
I was very disappointed by this. That steel plate wasn't moving at all, much less at 150 mph.

Also, slow motion videos take too long to watch. Couldn't they speed the damn things up a bit? After all, I don't have all night.
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Old 01-15-2017, 10:38 AM
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Default Re: Slow your post-mo videos

I think the golf ball one is fake. There are other YouTube slow motion videos of golf balls being hit at 175mph or so - and they show only a fraction of the compression of that steel plate video.
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Old 01-16-2017, 01:32 AM
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I read some of your foolish scree, then just skimmed the rest.
 
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Default Re: Slow your post-mo videos

You seem to be right.
In which case, I replace it with snake attack,
(It's hypothesized the kangaroo rat uses a tendon to store up elastic energy to release during a strike to escape faster or so the snake undershoots the expected target.)
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  #10  
Old 01-16-2017, 10:32 AM
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Default Re: Slow your post-mo videos

:freakout: I have the same gif on my phone right now!
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