Eclipse Viewing Tools: Build A Sun Funnel

One of the challenges of solar eclipses is that the Sun always look small. A great tool for group settings is enlarging the Sun with a Sun Funnel. The Sun Funnel uses a small telescope to project a larger image of the Sun on a screen. It is a safe technique because the light from the Sun is entirely enclosed within the funnel. This video is a full walk-thru of making a Sun Funnel.

Parts:
Small hose clamp (needs to open up to 1.5")
Large hose clamp (needs to open up to 5")
Oil change funnel with circular opening with a 5" diameter (or less)
8"x8" piece of projection screen or double-thickness of vinyl shower curtain
(projection screen pieces for sale on my website:
www.totalitytown.net/catalog

Tools:
Hacksaw
Tape measure
Flat head screw driver or 5/16" hex driver for tightening hose clamp
Sandpaper

Build a Sun Funnel PDF by American Astronomical Society and NASA (you can also find this document on each of their websites):
https://drive.google.com/file/d/1p5ty...