Tag Archives: Magnetic field

Yes, Apollo Flew Through the Van Allen Belts Going to the Moon

Conspiracists who believe the moon landings were faked like to claim the astronauts could not have survived the trip because of exposure to radiation from the Van Allen radiation belt (http://tinyurl.com/p7khram).

Of course, they are wrong. Again.

Related: Moon Landing Conspiracy Theory

The Truth About the Bermuda Triangle

bermudatri
By Emily Upton via todayifoundout.com

bermuda-triangle1_300pxThe Bermuda Triangle is a large area of ocean between Florida, Puerto Rico, and Bermuda. Over the last few centuries, it’s thought that dozens of ships and planes have disappeared under mysterious circumstances in the area, earning it the nickname “The Devil’s Triangle.” People have even gone so far as to speculate that it’s an area of extra-terrestrial activity or that there is some bizarre natural scientific cause for the region to be hazardous; but most likely, it’s simply an area in which people have experienced a lot of bad luck—the idea of it being a “vortex of doom” is no more real than Bigfoot or the Loch Ness Monster (see The Origin of the Bigfoot Legend and The Origin of the Loch Ness Monster).

The Bermuda Triangle’s bad reputation started with Christopher Columbus. According to his log, on October 8, 1492, Columbus looked down at his compass and noticed that it was giving weird readings. He didn’t alert his crew at first, because having a compass that didn’t point to magnetic north may have sent the already on edge crew into a panic. This was probably a good decision considering three days later when Columbus simply spotted a strange light, the crew threatened to return to Spain.

This and other reported compass issues in the region gave rise to the myth that compasses will all be off in the Triangle, which isn’t correct, or at least is an exaggeration of what is actually happening as you’ll see.  Despite this, in 1970 the U.S. Coast Guard, attempting to explain the reasons for disappearances in the Triangle, stated:

First, the “Devil’s Triangle” is one of the two places on earth that a magnetic compass does point towards true north. Normally it points toward magnetic north. The difference between the two is known as compass variation. The amount of variation changes by as much as 20 degrees as one circumnavigates the earth. If this compass variation or error is not compensated for, a navigator could find himself far off course and in deep trouble.

compass_200pxOf course, despite this now being repeated as an explanation for disappearances in the Triangle on numerous documentaries and articles since then, it turns out magnetic variation is something ship captains (and other explorers) have known about and had to deal with pretty much as long as there have been ships and compasses. Dealing with magnetic declination is really just “Navigation by Compass” 101 and nothing to be concerned about, nor anything that would seriously throw off any experienced navigator.

In 2005, the Coast Guard revisited the issue after a TV producer in London inquired about it for a program he was working on.  In this case, they correctly changed their tune about the magnetic field bit stating,

Many explanations have cited unusual magnetic properties within the boundaries of the Triangle. Although the world’s magnetic fields are in constant flux, the “Bermuda Triangle” has remained relatively undisturbed.  It is true that some exceptional magnetic values have been reported within the Triangle, but none to make the Triangle more unusual than any other place on Earth.

The modern Bermuda Triangle legend didn’t get started until 1950 when an article written by Edward Van Winkle Jones was published by the Associated Press. bombers_250pxJones reported several incidences of disappearing ships and planes in the Bermuda Triangle, including five US Navy torpedo bombers that vanished on December 5, 1945, and the commercial airliners “Star Tiger” and “Star Ariel” which disappeared on January 30, 1948 and January 17, 1949 respectively. All told, about 135 individuals were unaccounted for, and they all went missing around the Bermuda Triangle. As Jones said, “they were swallowed without a trace.”

It was a 1955 book, The Case for the UFO, by M. K. Jessup that started pointing fingers at alien life forms. After all, no bodies or wreckage had yet been discovered. By 1964, Vincent H. Gaddis—who coined the term “Bermuda Triangle”—wrote an article saying over 1000 lives had been claimed by the area. He also agreed that it was a “pattern of strange events.” The Bermuda Triangle obsession hit its peak in the early 1970s with the publication of several paperback books about the topic, including the bestseller by Charles Berlitz, The Bermuda Triangle.

MORE – – –

Magnet People: How Do They Work?

By Kyle Hill via The Committee for Skeptical Inquiry – CSI

. .. never mind that there is no evidence for these gaussy guys and gals, what would the world be like if people really did generate a noticeable or even intense magnetic field?


hill-magnet-people

Strip club patrons would get quite a show, more so than usual, if people really were magnetic.

Amid the dollar bills and drunk-at-noon businessmen, a magnetic stripper, if she spun fast enough around the poll, would melt it. At the very least she would shock herself before shocking the crowd. When a conductor like metal meets a changing magnetic field, the magic of reality induces an electric current in it. Flip-flop this current around enough, and the metal heats up to the point of melting.

If people really were magnetic, they would be terrible navigators. Taking to their smart phones and computers, their screens would blur out and become unusable. Going back to the old methods, a compass wouldn’t help much either. It would be more likely to find you than Earth’s magnetic north.

Barrell MagnetLike all interesting human qualities, magnetic people would have a range of field strengths. Perhaps there would even be schools and universities dedicated to harnessing or improving your output. In any case, the strength of the field matters quite a bit. It’s the difference between being a glorified refrigerator magnet and being able to free fall down a metal tube without dying.

Magnetic people with the strength of refrigerator magnets would produce a field 100 times stronger than the Earth’s. But if any fortunate “Magnetos” existed, perhaps with MRI-like output, they would have one million times the field strength of Earth. For the refrigerator-strength people, you wouldn’t have to change much. But a public warning would have to go out whenever those Magnetos were about. Entire houses, entire cities, would have to be shielded; all metal objects not tied down turn into deadly projectiles. In fact, a rogue oxygen tank once proved this danger, killing a patient during an MRI scan after rocketing across the room, drawn by the monstrous amount of teslas. (You can see the incident re-created here.) And at this strength, you better avoid your friend’s stack of old floppy disks and unshielded hard drives, as you could shuffle their bits into blurry oblivion.

But it wouldn’t be all bad. Magnetic craftsmen would find that every part of their body has become a convenient tool and nail holder. Salmon fishermen could experience a huge boom. As salmon navigate their way home according to the Earth’s magnetic fields, a giant magnet in the form of a fisherman could disorient or even attract the fish. Magnetic lifeguards could take to the ocean as shark repellants.

Lovers might find it annoying however, as there is no telling when your poles, so to speak, would line up.

If people really were magnetic, it would eliminate the need for elevators, at least as a way down. A strong enough magnet can . . .

MORE – – –

%d bloggers like this: