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00:03:51
Virtual worlds have physics. In this exhibit a visitor knocks over a small domino which knocks over a larger domino and so on down an exponentially growing line of dominoes which all the while obey the laws of physics.

00:00:44
This is a time-lapse movie of a chain reaction activity presented at the Exploratorium booth during Maker Faire 2009. Participants were asked to build a portion of a collective chain reaction contraption, which was set off twice during the day. Photos were taken every 30 seconds and then joined in a 24 fps movie.

00:00:36
This is a time-lapse movie of a chain reaction activity presented at the Exploratorium booth during Maker Faire 2009. Participants were asked to build a portion of a collective chain reaction contraption, which was set off twice during the day. Photos were taken every 30 seconds and then joined in a 24 fps movie.

00:13:23
The Exploratorium's Playful Invention and Exploration (PIE) department is inviting the public to create components of a multi-step chain reaction at Bay Area Maker Faire, 2009. Watch live as each maker's machine sets off the next, culminating in a grand finale!

00:16:50
For the second time, the Exploratorium's Playful Invention and Exploration (PIE) department is inviting the public to create components of a multi-step chain reaction at Bay Area Maker Faire, 2009. Watch live as each maker's machine sets off the next, culminating in a grand finale!

01:53:32
The Exploratorium celebrates the 20th anniversary of Pi Day with a pie-throwing contest, Pi Day exhibits in Second Life, and more activities honoring everyone's favorite mathematical constant.

00:53:00
A discussion about the artistic, scientific, and moral interpretations of J. Robert Oppenheimer and his legacy as the father of the atomic bomb. Composer John Adams and librettist Peter Sellars of the Doctor Atomic opera are joined by Richard Rhodes, author of the Pulitzer Prize-winning book, The Making of the Atomic Bomb. Kip Cranna, musical administrator at the San Francisco Opera, moderates.

00:60:00
A discussion about the artistic, scientific, and moral interpretations of J. Robert Oppenheimer and his legacy as the father of the atomic bomb. Composer John Adams and librettist Peter Sellars of the Doctor Atomic opera are joined by Richard Rhodes, author of the Pulitzer Prize-winning book, The Making of the Atomic Bomb. Kip Cranna, musical administrator at the San Francisco Opera, moderates.

0:55:19
What does it mean to find the Higgs Boson at CERN? Hear how this elusive particle could change our understanding of physics.

1:09:59
Follow CERN's Mission Impossible team as they race against the clock to collect all they need to bring antihydrogen back to CERN's webcast headquarters.