markhacks (25)in #science • 9 years agoAmazing Matchstick Trickmarkhacks (25)in #science • 9 years agoAmazing Skittles Rainbowmarkhacks (25)in #science • 9 years agoAmazing Refraction Of Light In Watermarkhacks (25)in #oddly • 9 years agoAmazing Sand PendulumHi, today I would like to introduce you sand pendulum drawing lissajous patterns. Enjoy this video! Mark Hacksmarkhacks (25)in #oddly • 9 years agoStuff In ReverseHi guys, I would like to introduce my first video that I published last year. I just shot some things backwards. I…
