3 ms·
Researchers find finger snap has highest acceleration the human body produces
- JoeAltmaier 5y agoSimilarly, cracking knuckles was a mystery until Dr. Adrien Flatt (hand surgeon, U of Iowa) took scans of a knuckle being 'cracked'. It was bubbles in the joint fluid being squeezed out of the compressed joint back into solution. Hey! I wonder if that action produces similar accelerations?
- serverlessmom 5y agonow I get to feel like a pistol shrimp every time I snap.
- HeyLaughingBoy 5y agoHa. That was the first thing I thought of when I read this.
- charlysl 5y agoIg Nobel Prize right here
- sys_64738 5y agoI thought it was a sneeze.
- orra 5y agoPerhaps, but that's not in scope of this study: > a snap of the finger produces the highest rotational acceleration observed in humans, even faster than the arm of a professional baseball pitcher.
- missedthecue 5y agoHow fast does the end of your tongue/lips flicker when you blow a raspberry?
- dTal 5y agoAssuming 2mm deflection and 20 Hz raspberry: 2mm ⋅ (2π⋅ 20 Hz)^2 ≈ 32 m/s^2 Unfortunately this is linear acceleration and thus not directly comparable to the 1.6 × 10^6° / s^2 (or approximately 30,000 radians per second squared) angular acceleration that the researchers recorded.
- LennyHenrysNuts 5y agoMoney well spent.