Credits

Thanks to all the awesome folks who released these wonderful resources for free!

• MathIsFun.com (Rod Pierce) 

• NASA Pi in the Sky Challenges

• 3Blue1Brown (Grant Sanderson)

• Veritasium (Derek Muller)

• Professor Dave Explains (Dave Farina)

• Flipping Physics (Jonathan Thomas-Palmer)

• The Physics Classroom (Tom Henderson)

• PhET Labs

• oPhysics (Tom Walsh)

• The Physics Hypertextbook (Glenn Elert)

• HyperPhysics (Rod Nave)

• University of Wisconsin - Green Bay Physics Help (Heidi Fencl)

• Khan Academy (Sal Khan)