Upgrade

Milling machine loaded onto a pallet jack for moving.
Heavier than it looks.

There it goes, our old 1968 Bridgeport. Cast iron and steel, in need of a little refurbishment, and off to a new home across campus. The replacement’s on its way.

That we got the old one out the door is a small miracle by itself. Installing the new milling machine? There’s a budget to pay someone else to do that.

So that’s the original floor color!

All it’s missing is the chalk outline and little tents with numbers.

Iceland Spar

Yeah, it’s calcite, but iceland spar just sounds better.

With the right crystal structure, as with calcite (a form of good, old calcium carbonate), you get some neat effects. With a refractive index that varies depending on the polarization of the light passing through, a chunk of iceland spar is birefringent and causes a visual doubling effect of the objects seen beyond. How cool is that?