Secret Language: Cryptography & Secret Codes | Exploratorium
Learn about the history and methods of cryptography and secret codes, from ancient ciphers to modern encryption. Explore how to encipher and decipher messages using substitution and …
Experience the Exploratorium at Pier 15
Experience the Exploratorium. Let your curiosity roam free through hundreds of exhibits in our six spacious indoor and outdoor galleries at Pier 15, San Francisco.
A Brief History of Pi (π) - Exploratorium
Learn how pi (π) was calculated by ancient civilizations and mathematicians, from the Babylonians and Egyptians to Archimedes and Zu Chongzhi. Discover how the Greek letter π …
Your Weight on Other Worlds | Exploratorium
Calculate your weight on different planets and stars using your mass and gravity. Learn the difference between mass and weight, and how they depend on distance and size.
Anatomy of an Egg - Exploratorium
Chalazae are opaque ropes of egg white that hold the yolk in the center of the egg. They are visible as thin threads that attach the yolk to the membrane lining the eggshell. Learn more …
Cow's Eye Dissection - Exploratorium
Learn how the sclera, the outer covering of the eyeball, is tough and strong in cows and humans. See photos and videos of a cow's eye dissection and how the sclera protects the eye.
Science of Bread: Bread Science 101 - Exploratorium
Learn how baking powder or soda, yeast, flour, and water interact to make bread rise and taste good. Explore the chemistry, biology, and history of different types of bread and leaveners.
Origins: CERN: Ideas: The Big Bang - Exploratorium
Learn how astrophysicists believe the universe began with a massive explosion, creating matter and space itself. Explore the evidence, history, and future of the Big Bang theory with CERN …
How to View a Solar Eclipse | Exploratorium
Learn why you should never look at the Sun with the naked eye or unfiltered optical devices, and how to use solar viewing glasses, pinhole projectors, and other techniques to watch the …
Build a Solar System Model | Exploratorium
Make a scale model of the Solar System based on the diameter of the Sun and learn about the distances and sizes of the planets and stars. Download spreadsheets, explore the Nine …