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Velocity, mass and energy . . . and a human thumb.
11 years ago
Velocity, mass and energy . . . and a human thumb.
4” x 1” ¼” thick polycarbonate sheet weights about 18.52 grams depending on one or two factors which will change it by hundredths of a gram.
An object caught and flung from our spinning table saw blade clocks in at just around 97mph, assuming all energy is instilled into the object. Odds are it’s closer to 80mph or so.
Described polycarbonate fragment launches from the blade and impacts my left THUMB (Thumbnail and first joint) and does a glance at the pinky.
I’m sure someone watching me knows the right bit of math to figure out what the sum of energy imparted to my thumb was.
It’s been a week and darn it my thumb is still rather painful, at least the colour is more normal now. The Pollicis Longus tendon is sore as is the flesh over the Distal Phalange and Proximal Phalange. Thank heavens it wasn’t my right hand.
4” x 1” ¼” thick polycarbonate sheet weights about 18.52 grams depending on one or two factors which will change it by hundredths of a gram.
An object caught and flung from our spinning table saw blade clocks in at just around 97mph, assuming all energy is instilled into the object. Odds are it’s closer to 80mph or so.
Described polycarbonate fragment launches from the blade and impacts my left THUMB (Thumbnail and first joint) and does a glance at the pinky.
I’m sure someone watching me knows the right bit of math to figure out what the sum of energy imparted to my thumb was.
It’s been a week and darn it my thumb is still rather painful, at least the colour is more normal now. The Pollicis Longus tendon is sore as is the flesh over the Distal Phalange and Proximal Phalange. Thank heavens it wasn’t my right hand.
Glad you still have your thumb, mate!