EXPLO.TV - Webcasts, Video Clips, and Podcasts from the Exploratorium

Science in the City: Rebuilding Doyle Drive (Clip)

Running Time:
00:03:50

At the southern end of the Golden Gate Bridge, a construction project to rebuild the elevated freeway ramp formerly known as Doyle Drive is underway. Senior bridge engineer John Walters tours us through some of the new seismic technologies being installed, including a seismic joint designed to handle several feet of longitudinal movement and a spherical bearing that allows for three-dimensional movement. Walters also points out a temporary structure built over the historic Presidio Pet Cemetery to protect the grave sites while providing a platform for the construction overhead.

Project: Science in the City | Browse All

Date: November 23, 2011
Format: Expedition
Category: Everyday Science
Subject(s): engineering, city planning

Keywords: john walters, doyle drive, bridge, seismic, seismology, presidio parkway, presidio parkway project

QuickTime: 1100K

Geometry Playground: Passionately Curious (Clip)

Running Time:
00:04:22

For John Edmark, geometry is a foundation for creating beauty. Here he explains his interest in unexpected natural phenemona, and how visitors to his kaleidoscopic piece, The Geometron, can turn simple shapes into surprisingly intricate patterns of reflection.

Project: Geometry Playground | Browse All

Date: September 3, 2010
Format: Interview
Category: Everyday Science
Subject(s): Art

Keywords: geometry, geometron, reflection, kaleidoscope, art, john edmark

Links:

Geometry Playground

Speaking of Music Rewind: John Cage (Podcast)

Running Time:
01:28:01

John Cage was one of the most influential composers in modern American music. He raised fundamental questions about the nature of music, and invigorated, provoked, and perplexed audiences throughout his long career. In this lecture from 1987, excerpts of his work are played and discussed. Afterwards, Cage takes questions and shares his thoughts on subjects ranging from the origins of his impulse to make music-"Many composers hear music before they write it, but I write music in order to hear it"-to using chance to create without ego or intention. He asks why we should listen to music instead of just listening to the sounds around us, and answers: "There's no reason."

Project: Speaking of Music Rewind | Browse All

Date: May 20, 2010
Format: Interview
Category: Popular Culture
Subject(s): Art

Keywords: john cage, music, speaking of music,

Alternative content

download MP3 (120.08 MB)

Speaking of Music Rewind: Series Preview (Clip)

Running Time:
00:01:20

Meet some of the notable artists featured in the Speaking of Music Rewind preview: Brian Eno, Sarah Hopkins, Trimpin, Pamela Z, John Cage, Philip Glass, and Laurie Anderson.

Project: Speaking of Music Rewind | Browse All

Date: August 19, 2009
Format: Event
Category: Popular Culture
Subject(s): Art

Keywords: speaking of music, brian eno, laurie anderson, john cage, 40th anniversary, music

Ancient Writings Revealed: The Evidence Project Presents: Ancient Writings Revealed! (Webcast)

Running Time:
00:58:32

Watch ancient text revealed and read for the first time in a thousand years! Archimedes was one of the world's greatest scientific and mathematical minds. His thoughts were inscribed on goatskin parchment, but the letters and diagrams were scraped off and written over by Greek monks in the Middle Ages. Now, using an intense x-ray beam generated at Stanford University's linear accelerator, some of the original Greek text will be revealed for the first time in the modern world.

Project: Evidence: Ancient Writings Revealed | Browse All

Date: August 4, 2006
Format: Expedition
Category: Everyday Science
Subject(s): History, Technology

Keywords: archimedes, palimpsest, slac, evidence, monks, greek writings, texts, imaging, x-ray, synchatron radiation, walters art museum, neil calder, will noel, roger eastman, abagail quant, uwe bergmann

Real: 225K 600K

Windows Media: 225K 600K

Origins: Hubble: Preparing for Space (Webcast)

Running Time:
00:35:48

In an exclusive taped interview, Hubble payload commander and astronaut John Grunsfeld discusses how astronauts who'll be servicing a telescope in space train in a giant pool at the Johnson Space Center. We'll also show an interview with space engineer Amy Ross, filmed in the space suit laboratory at Johnson.

Project: Origins: Hubble | Browse All

Date: March 3, 2002
Format: Interview
Category: Science in Action
Subject(s): Astronomy/Space Science

Keywords: columbia shuttle launch, rockets, rocket booster, designation sts-109 hubble space telescope service mission, goddard space center, kennedy space center, john m. grunsfeld, nasa neutral buoyancy lab, spacewalks, spacesuits, infrared light, nicmos, , space gloves

Real: 256K

West Coast Live: West Coast Live: October 10, 1998 (Webcast)

Running Time:
1:58:50

This episode of Sedge Thomson's West Coast Live radio show explores the places where science and entertainment intersect. In this broadcast: Singer-songwriter John Gorka; Bert Grant, founder of Grant's Brewery; a view from the studio of artist Meredith Tromble; author of "Fisherman's Son" Michael Koepf.

Project: Sedge Thomson's West Coast Live | Browse All

Date: October 10, 1998
Format: Interview
Category: Popular Culture
Subject(s): Arts, General Science

Keywords: john gorka, folk music, memory exhibition description, art and science, radio

Real: 34K


		Streaming Technology provided by: Digital Rapids	Webcasts made possible through the generosity of the Gordon and Betty Moore Foundation, The Jim Clark Endowment for Internet Education, the McBean Family Foundation,.and the Corporation for Educational Networks Initiatives in California (CENIC).