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Running Time:
0:43:07
Making antihydrogen is no easy matter. Researchers at CERN show the Exploratorium's Melissa Alexander and Tom Humphrey where positrons live and how they keep them as cold as deep space.

Project: Origins: CERN | Browse All

Date: November 12, 2000
Format: Interview
Category: Science in Action
Subject(s): Physics
Running Time:
0:29:09
What is antimatter and why are scientists studying it? How is the world's largest particle accelerator constructed? The Exploratorium's Rob Semper talks about how science is done at CERN and answers questions about antimatter from the Exploratorium's Webcast audience.

Project: Origins: CERN | Browse All

Date: November 11, 2000
Format: Interview
Category: Science in Action
Subject(s): Physics
Running Time:
0:29:52
A behind-the-scenes look at how the world's only antimatter factory works, complete with live footage from CERN and a virtual reality tour of the antimatter decelerator. In this Webcast, Rob Semper and Ron Hipschman talk with Melissa Alexander and Thomas Humphrey, who join them virtually from Switzerland.

Project: Origins: CERN | Browse All

Date: November 11, 2000
Format: Expedition
Category: Science in Action
Subject(s): Physics
Running Time:
0:48:53
Watch as Exploratorium staff and local teachers compete for the title of Iron Science Teacher. Today's secret ingredient-dry ice!

Project: Iron Science Teacher | Browse All

Date: October 28, 2000
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Chemistry, Physics
Running Time:
1:05:40
Watch as the best teachers on the planet battle it out for the title of Iron Science Teacher. In this zany competition teachers will have ten minutes to create a science activity. This week’s “secret” ingredient: tennis balls!

Project: Iron Science Teacher | Browse All

Date: August 3, 2000
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Physics
Running Time:
1:03:28
Host Greg Caroll and riders from Stereo, Think, and Real Skateboards perform as Exploratorium staff physicist Paul Doherty explains the physics behind this extreme sport.

Project: Sports: Skateboard Science | Browse All

Date: June 12, 1999
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Physics
Running Time:
0:23:03
In these archived webcasts from inside the American Association for the Advancement of Science (AAAS) exhibition hall, watch as Exploratorium senior scientist Tom Humphrey challenges some of the top scientists in the world to explain the phenomena behind selected exhibits from the museum floor. In this webcast, the Benham's Disk exhibit explained by guests from the Mathematical Sciences Research Institute in Berkeley and University High School in San Francisco

Project: AAAS Annual Meeting Dispatches, San Francisco | Browse All

Date: February 16, 1997
Format: Demonstration / Activity
Category: Science in Action
Subject(s): Physics