Bimetal Snap Disc - Changes shape when heated or cooled
4.5 (1,234)
Sold 100+ last 30 days
20% off first order
$6.00
Color
Black
Quantity
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Description
Video of the sample from physicsfun
This disc is made from a laminate of two different metal alloys with different coefficients of thermal expansion. The disc changes instantly from a concave to a convex shape when it is heated above its ...