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After Dark
Fire and Ice: Magnesium Burning in Dry Ice (Clip)
Date: December 3, 2009

Most things won't burn on Mars—after all, the main ingredient in the Martian atmosphere, carbon dioxide, is used in fire extinguishers on earth. So how would one create fire without oxygen? Use metal!This slow motion footage shows magnesium burning within a block of dry ice. To begin the demonstration, Eric Muller adds magnesium powder into a hollow carved in two blocks of dry ice. He inserts a lit fuse made of magnesium ribbon. Placing the blocks together seals the magnesium from air. The magnesium burns inside the dry ice, producing a beautiful glow. When the fire is out, what remains is white magnesium oxide and black carbon.
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00:05:00
Science in the City - Whales Washed Ashore on Northern California Beaches (Clip)
8/12/2015   
In the last few months a dozen whales have washed upon the shores of Northern California. The ...

Featured

00:20:00
After Dark - Photography: Cameras and the Geometry of Vision (Clip)
5/12/2015   
As cameras became more sophisticated, so too did our understanding of projective geometry. In this ...
 
00:25:00
Resonance - Alonzo King LINES Ballet and Bernie Krause: Performance (Clip)
3/26/2015   
This newly added Resonance event highlights an emerging collaboration between one of ballet’s m ...
 
00:06:00
Science in the City - Guide Dogs (Clip)
3/11/2015   
Navigating bustling city streets can be a challenge for anyone at times. Can you imagine crossi ...
 
00:30:00
Rosetta Mission - Philae has Landed! (Webcast)
11/14/2014   
Join us for a live webcast with senior scientist Paul Doherty to discuss breaking news about ...
 
00:02:37
Arts at the Exploratorium - Bob Miller - Light Walk (1982) (Clip)
10/21/2014   
Light Walk captures former Exploratorium artist and "natural philosopher" Bob Miller (1935 ...

Recent

00:24:00
Iron Science Teacher - Summer 2015: Air (Webcast)
7/20/2015   
Cheer on the competitors in this zany science cook-off, where teachers compete ...
 
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Science in the City - Big and Tall Bikes (Clip)
7/8/2015   
Height confers advantages in many sports—to a point. But what if you’re too tall to even safe ...
 
00:53:00
Iron Science Teacher - Summer 2015: Plastic Bottles (Webcast)
7/7/2015   
Cheer on the competitors in this zany science cook-off, where teachers compete before ...
 
00:20:00
Live Deep-Sea Exploration with the E/V Nautilus - Live from the Galapagos: July 2nd, 2015 (Webcast)
7/2/2015   
Join us on the web or in person for a live chat with scientists and educators on board t ...
 
00:34:25
Miscellaneous - The Science of Sharing with Shachar Kariv (Clip)
6/30/2015   

On June 6, 2015, the Exploratorium hosted the Science of Sharing Forum, a public event fea ...