Quote:
Originally Posted by the terabyte
eye glasses are not adequate protection. i was cutting metal with my glasses on and a piece the size of a grain of sand managed to make its way into my eye.
|
Reminds me of a former university classmate who was knapping a piece of obsidian (AKA volcanic glass) into a projectile point. He was just finishing it off and needed to knock one last piece off the edge when that tiny bit of detritus bounced off his knee and straight up into his eye.
Being only 1.0-1.5 microns thick and about 4.0 sq. mm in area, it lay flat against his eye, similar to a contact lens. He calmly walked to the bathroom, washed his hands, then removed the flake the same way that you'd removed a contact. He later went to his optometrist who could not detect any damage to the eye.
After that, he always wore protective eyewear when he made stone tools.
He and I spent a lot of time in the school's knapping pit, making tools. The worst thing that ever happened to me was when I was pressure-flaking a microblade off of an obsidian core and it shot like a bullet through a piece of leather, through my jeans, and straight down into my thigh. The microblade was about 2 cm long and razor-sharp, as you might expect glass to be. Luckily, a couple of millimeters of the base was exposed, so I was able to pull it out with pliers. Hurt like a son of a gun.
So, anyway, as mentioned in my earlier post, I tend to wear protective gear whenever I'm working with tools or chemicals. I've learned the hard way.
D.