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NOVA - Magnetic Storm

from: WGBH Boston

: NOVA - Magnetic Storm
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Audience Rating: NR (Not Rated)
Binding: DVD
EAN: 9781593751074
Format: Closed-captioned, Color, DVD-Video, Letterboxed, NTSC
ISBN: 1593751079
Label: WGBH Boston
Manufacturer: WGBH Boston
Number Of Items: 1
Publisher: WGBH Boston
Region Code: 1
Release Date: February 17, 2004
Running Time: 60 minutes
Sales Rank: 31760
Studio: WGBH Boston
Theatrical Release Date: 2003



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Editorial Review:

Description:
What is weakening Earth’s invisible shield? Magnets have the power to attract and repel—sometimes on a massive scale. The Earth’s molten core—a violent mix of searing heat, crushing pressure, and a billion trillion tons of liquid iron—creates an invisible shield that surrounds the globe, guarding against a constant barrage of deadly radiation from space. But over the last few decades, the Earth’s magnetic field has weakened dramatically, intriguing scientists across the globe.

The power generated 2000 miles beneath our feet protects us every day, but the loss of Earth’s magnetic field is a brewing storm that affects us all. While experts research and debate, persistent questions remain. Is a rare geomagnetic reversal the cause of earth’s inner turmoil? And if the magnetic field were to vanish altogether, would Earth become as lifeless as Mars?

Travel from Hawaii’s molten lava flows to the mountains of Oregon and into the far reaches of outer space for a charged look at Earth’s magnetic history and potentially deadly future.

Special DVD features include: materials and activities for educators; a link to the NOVA Web site; scene selections; closed captions; and described video for the visually impaired.

On one DVD5 disc. Region coding: All regions. Audio: Dolby stereo. Screen format: Letterboxed.



Customer Reviews
Average Rating: out of 5 stars

Rating: 5 out of 5 stars - Great scientific documentary
I enjoyed watching this DVD and learn a lot from it.
Thanks to NOVA. A great contribution to ... Read More


Rating: 5 out of 5 stars - Grabbed My Attention!
The electromagnetic field of earth explains why earth's atmosphere has remained stable while Mars has ... Read More


Rating: 5 out of 5 stars - Truly a magnetic show
A marvelous collection of current research on the Earth's magnetic field. The only video I have that ... Read More


Rating: 5 out of 5 stars - Awesome
I had seen part of the Magenetic Storm months ago on KQED. It is an amazing story about magnetic polarity ... Read More


Rating: 4 out of 5 stars - Interesting and good enough for me
I found this DVD by incident. Since there are not so many DVD's about this topic, I just bought it out of curiosity ... Read More

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Copyright ©2003, Mark Carey.