I'M MAD AT AMERICAN PIPES

I have a 1/2" diameter hole. I want to put a pipe inside the hole. What size PVC pipe fits into a 1/2" hole? Did you guess 1/2" pipe? WRONG. “1/2 inch pipe” isn’t half an inch big on the outside. It’s closer to 7/8". You might think “ah so the 1/2” refers to the inner diameter". Wrong. The inner diameter of 1/2" PVC pipe is legally required to be 0.

Aiming

My Hadley has two upgrades that help it aim. Finderscope The first upgrade is an 6x50 finderscope that says “orion” on it. I found it in my local astronomy club’s shelf of spare parts, bought it for $10, and designed a 3D printed adapter for it to fit onto my Hadley. It features integrated crosshairs and helps me aim at planets at a glance! Sliced Pifinder The second upgrade is the Sliced PiFinder.