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Originally posted by tsurfer2000h
Actually we didn't nuke Jupiter and it was never proven to have actually have happened.
Originally posted by mcfc2012
Believe what you want, just don't let it upset your life on Earth
Originally posted by FeralMonkeyMagic
Ill say it again, just relax brother.
A SMALL weak spot in the Earth's magnetic field is causing big problems for sensitive instruments on scientific spacecraft, forcing changes in how astronomers observe the heavens. The weak spot, whose center is off the coast of Brazil, is called the South Atlantic Anomaly, or S.A.A., and it has created a Bermuda triangle of space science. Under its influence, spacecraft can go barmy, losing data, having computer upsets and seeing ghostly images where none exist.
As the geomagnetic field continues to weaken, the inner Van Allen belt gets closer to the Earth, with a commensurate enlargement of the SAA at given altitudes.[citation needed] Some scientists, including Dr. Pieter Kotze, head of the geomagnetism group at the Hermanus Magnetic Observatory in the southern Cape, believe that the anomaly is a side effect of geomagnetic reversal
Predictions estimate that by 2240 the SAA may cover approximately half of the southern hemisphere
Effects
The South Atlantic Anomaly is of great significance to astronomical satellites and other spacecraft that orbit the Earth at several hundred kilometers altitude; these orbits take satellites through the anomaly periodically, exposing them to several minutes of strong radiation, caused by the trapped protons in the inner Van Allen belt, each time. The International Space Station, orbiting with an inclination of 51.6°, requires extra shielding to deal with this problem. The Hubble Space Telescope does not take observations while passing through the SAA.[7] Astronauts are also affected by this region which is said to be the cause of peculiar 'shooting stars' seen in the visual field of astronauts.[8] Passing through the South Atlantic Anomaly is thought[9] to be the reason for the early failures of the Globalstar network's satellites.
NASA has reported that modern laptops have crashed when the space shuttle flights passed though the anomaly
Geomagnetic polarity since the middle Jurassic. Dark areas denote periods where the polarity matches today's polarity, light areas denote periods where that polarity is reversed.
Considering that ships, planes and Boy Scouts steer by it, Earth's magnetic field is less reliable than you'd think. Rocks in an ancient lava flow in Oregon suggest that for a brief erratic span about 16 million years ago magnetic north shifted as much as 6 degrees per day. After little more than a week, a compass needle would have pointed toward Mexico City.
(PhysOrg.com) -- The Earth's magnetic poles flip around every 200,000 years or so, with north becoming south and vice versa. Normally, the process takes 4-5,000 years and it ought to be impossible for the flip to be much faster, if models of the Earth's core are correct, but now for the second time evidence has been found of a flip that appears to have taken only a few years.
Research on the rocks by a team led by geologist Scott Bogue of the Occidental College in Los Angeles revealed the lava flow had an unusual magnetic pattern that suggested the magnetic field had been shifting over 10,000 times faster than normal, at six degrees a day.
Now, physicists in Italy have found that the frequency of these polarity reversals is not random as previously thought but occurs in clusters, revealing some kind of "memory" of previous events
Although a full geomagnetic polarity reversal can take thousands of years to complete, it does have implications. As well as affecting the migration trajectories of birds and other animals, the disruption to the Earth's magnetic field could expose the Earth to hazardous cosmic rays.
Originally posted by mike184ever
maybe somebody with all their knowledge and wisdom explain to me why Homestead AFB runway is still marked 05/23 and for the last 32 yrs
Originally posted by zorgon
Considering that ships, planes and Boy Scouts steer by it, Earth's magnetic field is less reliable than you'd think. Rocks in an ancient lava flow in Oregon suggest that for a brief erratic span about 16 million years ago magnetic north shifted as much as 6 degrees per day. After little more than a week, a compass needle would have pointed toward Mexico City.
htt
Originally posted by Sailor Sam
reply to post by Human_Alien
Human Alien - but you are posting paranoia all the same.
When logical explanations are offered you get upset.
Does a rational explanation not fit your paranoia?
Now, says Brown, the thing is about to happen again. The ice in the Antarctic is getting thicker and heavier. The earth is wobbling. Soon the great slosh will come. Most of mankind will be drowned and the rest will enjoy new climates.
Originally posted by TomJoad
reply to post by Human_Alien
wouldn't pole shift make it difficult to navigate land with a map and a lensatic compass?edit on 8-1-2011 by TomJoad because: punctuation
Originally posted by zorgon
Hmmm seems like thee were a LOT of pole reversals afterall
Geomagnetic polarity since the middle Jurassic. Dark areas denote periods where the polarity matches today's polarity, light areas denote periods where that polarity is reversed.
en.wikipedia.org...
Originally posted by TomJoad
reply to post by Human_Alien
wouldn't pole shift make it difficult to navigate land with a map and a lensatic compass?edit on 8-1-2011 by TomJoad because: punctuation