Bubbles are round when they float free through air. But what happens when you pack bubbles together?
Want to see where the biggest quakes have been this week? Follow a few of the links below to see what's shaking in your neighborhood and around the world.
Rube Goldberg-inspired cause and effect contraptions using everyday materials and found objects.
Learn how to tie the six knots most useful on a voyaging canoe.
Can you trust your own memory? Find out with this activity.
Why is the bicycle the most efficient way to travel? Explore bicycle science and culture.
What's in that cup of coffee anyway? Find out about the history and chemistry of coffee.
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444Contact Info
Sign up for our newsletter