→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the water cooler with TodayIFoundOut! Brand new videos 7 days a week! More from TodayIFoundOut Why We ‘Drop’ the Ball on New Years https://youtu.be/B4oECFPQctg?list=PLR0XuDegDqP156fo5WoNrzByZHiDO-XS_ Who Really Invented Daylight Saving Time https://youtu.be/c6BbPvwXmTg?list=PLR0XuDegDqP3XRa-w_G0dy_aMMXj0Uq-k In this video: An Etch a Sketch is a remarkably simple device. The primary components are just a small sheet of glass; a stylus controlled by two knobs; very fine aluminum powder; and tiny plastic beads. The tiny beads are mixed in with the powder to make sure the powder will continue to flow evenly and not get clumped together, as well as aid in the re-coating process when you shake the Etch a Sketch. Want the text version?: http://www.todayifoundout.com/index.php/2010/12/how-an-etch-a-sketch-works/ Sources: http://en.wikipedia.org/wiki/Etch_A_Sketch http://web.mit.edu/invent/iow/etchy.html http://www.howstuffworks.com/question317.htm http://www.thereporteronline.com/articles/2010/07/10/life/doc4c372c256561d616240194.txt http://targetstudy.com/knowledge/invention/151/etch-a-sketch.html http://en.wikipedia.org/wiki/Talk%3AEtch_A_Sketch