Browsing 20 - 30 results of 646 clips


Everything Matters: Tales from the Periodic Table:  Magnesium: Ron Hipschman (Clip)
Running Time:
00:23:05
At the center of each chlorophyll molecule sits one magnesium ion, a linchpin for photosynthesis. Our cells require magnesium for hundreds of enzymes and metabolic processes. Spawned from supernovae and scattered through interstellar dust, this life-giving alkaline earth metal readily reacts and is abundant in seawater and a host of minerals from dolomite to olivine.

Project: Everything Matters: Tales from the Periodic Table | Browse All

Date: March 22, 2016
Format: Event
Category: Everyday Science
Subject(s): chemistry

Keywords: everything matters, ron hipschman, magnesium


Solar Eclipse:  2016 Sonification Excerpt (Clip)
Running Time:
00:12:06
For the solar eclipse of 2016, the Exploratorium was on the island of Woleai, in Micronesia, with multiple telescopes trained on the sun. These telescopes were connected to a laptop holding custom-made software that looks at the movement of the moon and the brightness of the sun. Composer Wayne Grim used this software to create a live composition based on the data. The musical composition uses rotational and orbital periods of the Earth, moon, and sun as formal elements. Here is an excerpt from the 3 hour piece.

Project: Solar Eclipse: Stories from the Path of Totality | Browse All

Date: March 17, 2016
Format: Expedition
Category: Everyday Science
Subject(s): General Science

Keywords: sonification


Solar Eclipse:  2016 Live from Micronesia Totality Highlights (Clip)
Running Time:
00:05:06
See the highlights of totality from the total solar eclipse of March 8/9 2016! The Exploratorium and NASA went to Woleai, a tiny atoll in the Federated States of Micronesia, where we broadcast the eclipse live. Totality began at 11:38 a.m. on March 9 in Woleai, Micronesia, which was 5:38 p.m. on March 8 in San Francisco.

Project: Solar Eclipse: Stories from the Path of Totality | Browse All

Date: March 14, 2016
Format: Expedition
Category: Everyday Science
Subject(s): Astronomy

Keywords: eclipse 2016, total solar eclipse 2016, nasa, nsf, micronesa, totality, corona, sun, moon, earth, diamond ring, baily's beads


Solar Eclipse:  Einsteins Light-Bending Concept (Clip)
Running Time:
00:01:45
This hands-on science video explains Einsteins light-bending concept using nothing more than a wine glass and an LED light representing a star.

Project: Solar Eclipse: Stories from the Path of Totality | Browse All

Date: March 1, 2016
Format: Demonstration / Activity
Category: Science in Action
Subject(s): Astronomy/Space Science

Keywords: total solar eclipse, space, sun, einstein, stars, sun, moon, eclipse


Solar Eclipse:  Earth-Sun-Moon Scale Model (Clip)
Running Time:
00:01:24
In this video, Exploratorium Senior Scientist Paul Doherty explains why you rarely see a true scale model of the Earth, sun, and moon. Understanding the true scale of the solar system helps us appreciate the rarity of total solar eclipses: its unusual when objects at such distances line up perfectly.

Project: Solar Eclipse: Stories from the Path of Totality | Browse All

Date: February 25, 2016
Format: Expedition
Category: Everyday Science
Subject(s): General Science

Keywords:


Solar Eclipse:  Qu es un eclipse solar? (Clip)
Running Time:
00:03:58
nete a la astrnoma del Exploratorium Isabel Hawkins quien junto a la educadora del Exploratorium Liliana Blanco explican los movimientos de los astros durante un eclipse total de sol. A travs de demostraciones, ellas muestran cmo la luna, el sol y la Tierra se alinean para crear la coincidencia csmica que llamamos un eclipse total de sol.

Project: Solar Eclipse: Stories from the Path of Totality | Browse All

Date: February 25, 2016
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): Physics, General Science, Astronomy/Space Science

Keywords:


Everything Matters: Tales from the Periodic Table:  Sodium: John Largier (Clip)
Running Time:
00:20:24
Learn how the mix of saltwater and freshwater in the San Francisco Bay affects its diverse ecosystems with John Largier, professor of coastal oceanography at the University of California, Davis.

Project: Everything Matters: Tales from the Periodic Table | Browse All

Date: February 25, 2016
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): chemistry

Keywords: everything matters, sodium, john largier, salt, saltwater


Everything Matters: Tales from the Periodic Table:  Sodium: Ron Hipschman (Clip)
Running Time:
00:38:13
Essential, explosive sodium is a soft, silvery alkali metal that roils in water, releasing clouds of hydrogen gas that fan its yellow flames. It reacts with most elements, and is naturally found only in compounds, such as sodium chloride, or common salt. Ancient Egyptians knew sodium from natron, a mix of salts prized for cleaning, personal hygiene, and preservation, particularly in mummification. Humphry Davy first isolated the element from caustic soda in 1807, naming it sodium; Jakob Berzelius preferred natrium, hence its symbol (Na). As a metal, liquid sodium cools nuclear reactors, and sodium-vapor lamps bathe streets at night in yellow, monochromatic light.

Project: Everything Matters: Tales from the Periodic Table | Browse All

Date: February 25, 2016
Format: Demonstration / Activity
Category: Everyday Science
Subject(s): chemistry

Keywords: ron hipschman, sodium, salt, everything matters


Solar Eclipse:  Why Don't We Have an Eclipse Every Month? (Clip)
Running Time:
00:01:54
In this video, Exploratorium Senior Scientist Paul Doherty explains why we don't have a total solar eclipse every month. A total solar eclipse happens when the moon crosses between the sun and Earth and casts its shadow onto our planet. But the orbit of the moon is tilted relative to the orbit of the Earth around the sun, so the moon often passes below or above Earth. At those times, it does not cross the line between the sun and the Earth, and therefore does not create a solar eclipse. There are just two times a year in the Earth's orbit when there is a possibility of a total solar eclipse.

Project: Solar Eclipse: Stories from the Path of Totality | Browse All

Date: February 24, 2016
Format: Expedition
Category: Everyday Science
Subject(s): General Science

Keywords:


Solar Eclipse:  What is a Solar Eclipse? (Clip)
Running Time:
00:03:45
Join Exploratorium astronomer Isabel Hawkins, and Exploratorium educator Liliana Blanco as they explain the celestial mechanics of a total solar eclipse. Through demonstrations, they show how the moon, sun, and Earth align to create the cosmic coincidence that we see as a total solar eclipse.

Project: Solar Eclipse: Stories from the Path of Totality | Browse All

Date: February 23, 2016
Format: Expedition
Category: Everyday Science
Subject(s): Physics, General Science, Astronomy/Space Science

Keywords:


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