daemn42 | Slow-mo Slinky and Ball Drop - Hero3 Black 240fps. @daemn42 | Uploaded November 2012 | Updated October 2024, 20 hours ago.
The slinky drop is often shown by itself, but thought it'd be interesting to show it in comparison to a ball dropped from the height of the top of the slinky. Notice that the top of the slinky accelerates downward much faster than gravity as the slinky pulls itself together. The bottom remains motionless as it is still supported by the tension of the slinky until the top catches up with the bottom. If I had lined the ball up with the center of mass of the slinky (about 2/3rds of the way down) they'd both hit the ground at the same time. Veritasium's channel has the best scientific explanation for how this all works. Notice the rotational information reaches the bottom well before the tension is released.
Video recorded at 848x480@240fps with GoPro Hero3 Black. 30fps playback is slowed 1/8x
Bonus end of the video is simply me plunking the slinky once. The audio was recorded at a different time using my Zoom H2 audio recorder, and is played back at 1x speed. If you touch the end of a slinky to your ear, this is what it sounds like. Sci-fi shows and movies have used bits of slinky sounds over the years.
The slinky drop is often shown by itself, but thought it'd be interesting to show it in comparison to a ball dropped from the height of the top of the slinky. Notice that the top of the slinky accelerates downward much faster than gravity as the slinky pulls itself together. The bottom remains motionless as it is still supported by the tension of the slinky until the top catches up with the bottom. If I had lined the ball up with the center of mass of the slinky (about 2/3rds of the way down) they'd both hit the ground at the same time. Veritasium's channel has the best scientific explanation for how this all works. Notice the rotational information reaches the bottom well before the tension is released.
Video recorded at 848x480@240fps with GoPro Hero3 Black. 30fps playback is slowed 1/8x
Bonus end of the video is simply me plunking the slinky once. The audio was recorded at a different time using my Zoom H2 audio recorder, and is played back at 1x speed. If you touch the end of a slinky to your ear, this is what it sounds like. Sci-fi shows and movies have used bits of slinky sounds over the years.
