Click here to enroll in Coursera's "Cryptography I" course (no pre-req's required): STEMerch Store: Support the Channel: PayPal(one time donation): Watch Part 2: Instagram: Twitter: Join Facebook Group: ►My Setup: Space Pictures: Magnetic Floating Globe: Camera: Mic: Tripod: Equilibrium Tube: ►Check out the MajorPrep Amazon Store: