Attack of the Sun

Free Documentaries Online

Free Documentaries Online


Find us on:
  

Who's Online

We have 249 guests and 8 members online


Attack of the Sun
Close Ad
Lights off
Rate:
0 ratings
Views: 308

From: silichip
Videos: 2007
Added: 08-09-2012 18:25:44
Watch this and other space videos at http://SpaceRip.comWatch in 1080p as massive solar eruptions take aim at our high-tech society. 93 million miles away... an angry sun vents its rage. Dark regions, called sunspots, appeared unexpectedly on its surface... a sign of rising tension within. It had been three and a half years since the sun last erupted in fury...at the peak of an 11-year cycle of solar flare-ups.Back then, we got ready for it... by shutting down satellites that were vulnerable to high levels of radiation. But no one expected this. In what should have been a low point in solar activity, the sun erupted in a series of massive explosions, called coronal mass ejections, or CMEs.Electrified gas clouds weighing billions of tons raced outward. Solar telescopes recorded the action... The largest emission of solar x-rays ever seen. The hottest flares, at tens of millions of degrees. And the fastest... reaching speeds clocked at six million miles per hour. The sun became a giant plasma weapon... more potent than any in science fiction... and pointed right at our home planet. On Earth... the Halloween storms produced some of the most spectacular auroras ever seen at the north and south poles. They also brought jolts of electricity that caused power outages in Sweden, and disrupted airline navigation.In space, these storms damaged 28 communications satellites, and destroyed two. And they didn't stop there. As the energetic surge swept past Mars, it was so strong it burned out the radiation monitor aboard the spacecraft, Mars Global Surveyor. Ironically, this instrument was designed to study radiation that human explorers might encounter on future missions beyond Earth. Months later, the rush of solar energy washed over the two Voyager spacecraft, on their way to the far reaches of the solar system. CMEs like these have been known to blast their way out the far edges of the solar system, where the solar wind meets the flow of gas around the galaxy itself. This stormy season on the sun lasted about five weeks. It was by no means the worst. A solar eruption in 1859 was so powerful it set fire to telegraph offices... several people got nasty electric shocks, simply because they were working with metal objects... and for the next few nights, auroras were reportedly bright enough to read by.A similar storm today could easily cause more than two trillion dollars in damage to our high-tech infrastructure, twenty times greater than hurricane Katrina. But believe it or not, the threat is about to get even worse. We are beginning to change the way we acquire and use energy... by expanding our power grid to accommodate wind farms...solar arrays... new nuclear plants ... and other renewable energy sources.This grid will get larger... and smarter.... With microprocessors in most every device...communicating and negotiating with one another... running everything from air conditioners to power plants. A sudden surge of solar activity could strike the grid directly...inflicting a substantial amount of damage on the emerging smart power economy.To understand what a powerful force the sun can be. Take a look at Venus. At almost exactly the same size and mass as Earth, it's truly our sister planet. The thinking is that long ago, fierce solar winds stripped off lighter water molecules from its upper atmosphere. What was left was a witches' brew of acidic gases and carbon dioxide that thickened at lower altitudes, rising to some 90 times the density of Earth's atmosphere. At a concentration of 95% in Venus' atmosphere, CO2 gas trapped increasing amounts of sunlight and drove surface temperatures close to 1000 degrees Fahrenheit. How did Earth avoid such a harsh fate? One of the main reasons is that our planet has what Venus lacks... a natural defense against solar attacks.
Url:
Embed:

Related Videos
0:44:51
Owner: silichip
Views: 4162
Date: 18-09-2010
0:56:56
Owner: silichip
Views: 623
Date: 29-05-2011
0:07:12
Owner:
Views: 1802
Date: 26-08-2010
0:08:14
Owner:
Views: 1677
Date: 26-08-2010
0:07:56
Owner:
Views: 1872
Date: 26-08-2010
0:09:51
Owner:
Views: 1825
Date: 26-08-2010
0:09:31
Owner:
Views: 2130
Date: 26-08-2010
0:50:49
Owner: silichip
Views: 701
Date: 04-12-2010
Owner: silichip
Views: 1221
Date: 31-12-2010
Owner: silichip
Views: 1227
Date: 01-01-2011
Owner: silichip
Views: 889
Date: 01-01-2011
0:54:40
Owner: silichip
Views: 986
Date: 22-07-2011
1:00:03
Owner: silichip
Views: 920
Date: 04-05-2011
0:46:03
Owner: silichip
Views: 1997
Date: 27-11-2011
0:44:00
Owner: silichip
Views: 1657
Date: 25-12-2011
0:59:00
Owner: silichip
Views: 1863
Date: 01-04-2012
0:44:59
Owner: silichip
Views: 461
Date: 08-09-2012
1:45:19
Owner: silichip
Views: 568
Date: 08-09-2012
0:24:31
Owner: silichip
Views: 327
Date: 08-09-2012
0:24:32
Owner: silichip
Views: 400
Date: 08-09-2012

Category
0:48:59
Owner: silichip
Views: 1212
Date: 20-06-2013
0:59:26
Owner: silichip
Views: 1040
Date: 20-06-2013
Owner: silichip
Views: 707
Date: 15-06-2013
Owner: silichip
Views: 1021
Date: 14-06-2013
0:44:00
Owner: silichip
Views: 15522
Date: 29-05-2013
0:49:20
Owner: silichip
Views: 1013
Date: 20-05-2013
Owner: silichip
Views: 1049
Date: 11-05-2013
1:29:59
Owner: silichip
Views: 1404
Date: 11-05-2013
0:59:36
Owner: silichip
Views: 976
Date: 11-05-2013
0:59:11
Owner: silichip
Views: 555
Date: 11-05-2013
0:59:13
Owner: silichip
Views: 688
Date: 11-05-2013
0:59:09
Owner: silichip
Views: 573
Date: 11-05-2013
0:58:07
Owner: silichip
Views: 652
Date: 11-05-2013
0:58:34
Owner: silichip
Views: 668
Date: 01-05-2013
0:58:48
Owner: silichip
Views: 486
Date: 01-05-2013
0:58:28
Owner: silichip
Views: 340
Date: 01-05-2013
0:59:04
Owner: silichip
Views: 363
Date: 01-05-2013
0:58:05
Owner: silichip
Views: 557
Date: 01-05-2013
0:57:39
Owner: silichip
Views: 478
Date: 01-05-2013
0:44:04
Owner: silichip
Views: 1109
Date: 14-04-2013
0:44:03
Owner: silichip
Views: 806
Date: 14-04-2013
0:44:03
Owner: silichip
Views: 581
Date: 14-04-2013
0:44:03
Owner: silichip
Views: 550
Date: 14-04-2013
0:44:00
Owner: silichip
Views: 685
Date: 14-04-2013
0:44:00
Owner: silichip
Views: 416
Date: 14-04-2013
0:44:03
Owner: silichip
Views: 648
Date: 14-04-2013
Owner: silichip
Views: 763
Date: 13-04-2013
Owner: silichip
Views: 683
Date: 12-04-2013
Owner: silichip
Views: 485
Date: 12-04-2013
Owner: silichip
Views: 365
Date: 12-04-2013
 
Joomla Template Tutorial by JoomlaShack
Watch Free Movies