Drag me to cover each significant digit!
Sig J. Fig
Sig J. Fig
Drag me to cover each digit that isn't significant -- optional!
Zed Z. Zero
Zed Z. Zero
Number of sig figs tagged:
Press this button to see all the rules for significant figures.

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Original spark:Rebecca Rapf
Characters:Anne Gunn
Implementation:Matt Garriott
Graphics and animation:Wolfgang Schwartz