Science Gizmo: RATTLEBACKS

Science Gizmo: RATTLEBACKS

•  Price is for one pack of 10 Rattlebacks.
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(Note *Brand may vary from image displayed).

►  Science Gizmos are fun way to demonstrate properties of mechanical applications used and taught in Physics and Chemistry laboratories.
►  Enjoy the exciting discovery of how this easy-to-use apparatus works and understand the science behind why it works the way it does !

(Wikipedia excerpt: ..."...A gizmo is a gadget, especially one whose real name is unknown or forgotten.... A gadget is a mechanical device or any ingenious article.[2] Gadgets are sometimes referred to as gizmos. ...The etymology of the word is disputed. The word first appears as reference to an 18th-century tool in glassmaking that was developed as a spring pontil.[3] As stated in the glass dictionary published by the Corning Museum of Glass, a gadget is a metal rod with a spring clip that grips the foot of a vessel and so avoids the use of a pontil".

Gadgets were first used in the late 18th century.[4] According to the Oxford English Dictionary, there is anecdotal evidence for the use of "gadget" as a placeholder name for a technical item whose precise name one can't remember since the 1850s; with Robert Brown's 1886 book Spunyarn and Spindrift, A sailor boy's log of a voyage out and home in a China tea-clipper containing the earliest known usage in print.[5]...")

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