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widens the usable measuring range and stands up to cleaning far better than plain stainless steel
ATOM Structure Model – Build-Your-Own Atomic Model Kit
EM1623-01 Maltese Cross / Straight Electron SE
scientific research
A Copper Sheet is handy material for science and lab work
Floating Density Ball coils widens the usable measuring rangeFloating Density Ball: A hollow metal sphere that floats in cool water and sinks in warm water making the abstract concept of thermal density change immediately visible and memorable. The ball's density is precisely calibrated to sit at the boundary: cold water is dense enough to support it; warm water, less so. A simple, powerful demonstration requiring minimal setup. How to run the demonstration: Fill one 1000 ml beaker with cold water (ice water or
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