Mass & Center of Gravity Physics

It's hard finding the right balance in life. Work, kids, sports, classes... it's difficult! Let these demos help. The Balancing Bird Demo balances on anything -- your finger, pencil point... Demonstrate the fundamental laws of physics with The SpillNot, a very functional item that also graphically illustrates the effects of centripetal force, it will easily and surprisingly keep the contents in the container!
  • list off, grid on  list on or off
  • Balancing Bird Puzzle

    Balancing Bird Puzzle

    A wonderful do-it-yourself physics puzzle for students of all ages.
    $3.95
  • The SpillNot

    The SpillNot

    Review star icon Review star icon Review star icon Review star icon Review star icon (4 reviews)
    A fabulous solution to the ubiquitous problem of spills.
    $12.95
  • Small Balancing Bird Demo

    Small Balancing Bird Demo

    Review star icon Review star icon Review star icon Review star icon Review star icon (17 reviews)
    These small, colorful birds balance on anything.
    $1.50–$14.95
  • Balancing Bird Demo

    Balancing Bird Demo

    Review star icon Review star icon Review star icon Review star icon Review star icon (18 reviews)
    Balances on anything - your finger, a pencil, or the edge of your desk.
    $2.95–$28.95