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Running Time:
00:09:30
TI program participant Mark Hespenheide presents an elegant illustration of free fall using string and paper clips.

Project: Teacher Institute Science Teaching Tips | Browse All

Date: October 21, 2009
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Physics
Running Time:
00:00:38
This electrifying After Dark event featured Austin Richards, Ph.D.—aka, Dr. MegaVolt®—jousting with 14-foot electrical arcs from his high-voltage Tesla coil on the evening of Thursday, November 5, 2009. This wonderful performance contributed to the celebration of the Exploratorium’s 40th Anniversary.

Project: After Dark | Browse All

Date: October 14, 2009
Format: Event
Category: Science in Action
Subject(s): Art, Physics, General Science
Running Time:
00:33:08
Is water ice present or absent in a crater near the moon's south pole? NASA’s Lunar CRater Observing and Sensing Satellite (LCROSS) mission is seeking a definitive answer. Join Exploratorium staff for a special Webcast featuring live coverage of LCROSS crashing into the moon! Our team will be broadcasting live from the 36" Refractor Telescope at Lick Observatory on Mt. Hamilton, where we’ll watch the impact and investigate how this intentional crash could reveal the existence of water ice.

Project: Miscellaneous | Browse All

Date: October 9, 2009
Format: Lecture
Category: Science in Action
Subject(s): Astronomy/Space Science, Physics
Running Time:
00:00:59
Exhibit developer Erik Thogersen backs away from the Giant Mirror. Watch his image change as he passes through the focal point, then continues on past the center of curvature.

Project: Reflections | Browse All

Date: September 9, 2009
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science, Physics
Running Time:
00:04:53
At the Giant Mirror, Senior Staff Scientist Paul Doherty demonstrates a simple way of locating a real image—an image that floats in space in front of the mirror.

Project: Reflections | Browse All

Date: September 9, 2009
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science, Physics
Running Time:
00:04:49
Senior Staff Scientist Thomas Humphrey invents a simple experiment to see if the Giant Mirror is spherical or parabolic, and then to see if it's perfectly spherical. By placing a Styrofoam ball at the center of curvature, he's able to prove that the mirror is out of pure sphericity by about one-quarter of one degree.

Project: Reflections | Browse All

Date: September 7, 2009
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science, Physics
Running Time:
00:04:37
Staff Neuroscientist Richard Brown demonstrates that the Giant Mirror reflects infrared radiation as well as visible light.

Project: Reflections | Browse All

Date: September 5, 2009
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): General Science, Physics
Running Time:
00:21:06
Dr. Laura Peticolas is a physicist at UC Berkeley's Space Physics Research group. She studies the Aurora to learn more about the Earth and the workings of our Solar System. She's currently working with NASA's Mars data to understand why the Martian aurora looks the way it does. In this podcast she discusses her research, her inspiration and how and why scientists sonify data.

Project: Exploratorium Audio Salon | Browse All

Date: September 3, 2009
Format: Interview
Category: Popular Science
Subject(s): physics, astronomy
Running Time:
00:05:59
Exploratorium staff physicist Thomas Humphrey reveals why size does matter, at least in physics.

Project: Teacher Institute Science Teaching Tips | Browse All

Date: August 26, 2009
Format: Interview
Category: Everyday Science
Subject(s): Physics
Running Time:
00:21:08
Astrophysicist Paul Coleman and expert ocean navigator Kalepa Baybayan visited the Exploratorium as advisors to our Polynesian Navigation project—a large-scale Web resource (launching April 2010) that will feature the astounding navigation practices of the Pacific Islanders, who were expertly navigating the Pacific thousands of years before the arrival of Europeans. Paul Coleman works at the University of Hawaii Institute for Astronomy, where he concentrates on the large-scale structure of the universe. Kalepa Baybayan is an expert navigator who mentors Hawaiian youth in native navigation practices. Both men are native Hawaiians. We spoke with them about traditional navigation practices, the balance between science and spirituality from a native perspective, and the benefits of being grounded in one’s culture.

Project: Exploratorium Audio Salon | Browse All

Date: July 15, 2009
Format: Interview
Category: Science in Action
Subject(s): Physics, Astronomy/Space Science