Opera singers carry notes that seem to last forever. How do they do it?
How many pennies will your bridge hold?
Learn how Hubble Telescope scientists put together those lovely pictures.
The fruit flies in this exhibit show just a few of the mutations that occur in natural fruit fly populations.
See for yourself how the tilt of the earth's axis results in what we experience as the seasons.
Richter and beyond
Can making up stories improve your memory? Try it!
This series of activities explores those handiest of appendages, your hands.
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
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