3B Scientific Ball with Ring User Manual
Page 4
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Elwe Didactic GmbH
▪ Steinfelsstr. 6 ▪ 08248 Klingenthal ▪ Germany ▪
www.elwedidactic.com
3B Scientific GmbH
▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany ▪
www.3bscientific.com
Subject to technical amendments
© Copyright 2008 3B Scientific GmbH
4.2 Heating with boiling water
Additional apparatus needed:
1 Glass beaker
Boiling water
•
First verify that the ball passes through the hole
in the bracket at room temperature.
•
Immerse the ball in boiling water for about 30
seconds.
•
Test whether the ball passes through the hole.
•
Cool the ball in cold water and test again
whether the ball goes through the ring.
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