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Archive for March, 2006

The Gravity-Powered Aircraft

The Fuelless Gravity Plane ConceptThe Fuelless Gravity Plane ConceptOur world is certainly not left wanting for free sources of energy. The sun vomits an absurd amount of energy upon the Earth’s surface constantly– up to a thousand watts per square meter during the daytime; the planet’s mantle writhes with heat energy, up to 4,000 degrees Celcius; and a tremendous supply of energy saturates the entire planet in the form of gravity. The difficulty has always been in finding ways to capture such energy usefully. Solar panels have had some success snatching up sunlight for conversion to electricity, geothermal installations use the earth’s heat to create power, and hydroelectric plants tap the potential energy of gravity. Currently a Nevada-based aviation company is exploring another creative way to utilize gravity as a power source– combining some very old ideas with some very new ones– to produce an aircraft concept which might one day tote people and cargo great distances without the need for fuel. The project is called the GravityPlane.

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The Final Total Eclipse

A Total Solar Eclipse, image taken by John WalkerIf there truly is some extraterrestrial Hitchhiker’s Guide to the Galaxy it would undoubtedly list a total solar eclipse as one of the sights to see while taking a break from probing Earth’s natives. Total solar eclipses, called totality for short, are pretty rare here on Earth; a casual observer might see only one or two during their lifetime.

Since the Earth is the only planet we have ever known, we can’t really appreciate how truly lucky we are. The odds of the size of a planet’s moon exactly matching the apparent size of its sun are pretty low. If the moon is too large, it blocks the majestic solar corona visible during totality. If it is too small, then all solar eclipses would be annular, allowing a ring of the sun’s light to pass . The “Goldilocks” combination of Moon and Sun sizes on Earth makes totality possible, and unique in our solar system.

But alas, this beautiful phenomenon is ephemeral, at least in the geologic sense. The lunar disc shrinks slightly every year as the Moon recedes from the Earth; the chance of a total solar eclipse decreases correspondingly. Somewhere near 1 billion years from now, the last total solar eclipse will grace whatever residents of Earth there may be.

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The Smoldering Ruins of Centralia

CentraliaThere is a small town in Pennsylvania called Ashland where Route 61’s northbound traffic is temporarily branched onto a short detour. Exactly what the detour is circumventing is not immediately clear to travelers, however few passers-by pay it any mind… a detour is nothing unusual. But anyone who ignores the detour and ventures along the original route 61 highway will soon encounter an abrupt and unexplained road closure. Beyond it lies a town filled with overgrown streets, smoldering earth, and ominous warning signs. It is the remains of the borough of Centralia.

Centralia, Pennsylvania was never a particularly large community, but it was once a lively and industrial place. At its peak the coal mining town was home to 2,761 souls, but today the population of its cemeteries far outnumbers that of its living residents. The series of events which led to the community’s demise– slowly diminishing its numbers to less than a dozen– began about forty-four years ago.

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The Troubled History of Beards

Rasputin and his beardThanks to my parents’ genes, I simply do not grow facial hair. I never have, unless you count microscopic stubble in the same ranks as a full beard. It certainly makes me a little jealous, especially when there are groups around promoting goodwill and happiness through the growth of a beard. So imagine my surprise when I found out that facial hair has had a much more troubled history than I first imagined.

Coming in many shapes, sizes and colors, the beard is a prominent feature on most men who do not shave (and the occasional woman – though let’s not go there). Today, pogonotrophy is normally accepted in society; but in the past, growing a beard could cause quite a few problems. Sprouting your manly facial hair could get you taxed, be a sign of rebellion against the church – or could even get you killed.

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The Man Who Changed Comic Books Forever

There was a time when comic books were just that – comic – with the likes of Mutt and Jeff and Mickey Mouse. But by the mid-1930’s new comics with characters like Dick Tracy and Flash Gordon which were filled with adventure and a little violence started to appear. With the arrival of Superman in 1939 the funny papers just weren’t funny anymore. And to some they were getting steamy and way too rough.

A charge was leveled against comic books that would be repeated decades later against television, movies, music and video games. An editorial by renowned Chicago Daily News literary editor Sterling North said the following about comics on May 8, 1940:

“Badly drawn, badly written and badly printed – a strain on the young eyes and young nervous systems – the effect of these pulp-paper nightmares is that of a violent stimulant. Their crude blacks and reds spoil a child’s natural sense of color; their hypodermic injection of sex and murder make the child impatient with better, though quieter, stories. Unless we want a coming generation even more ferocious than the present one, parents and teachers throughout America must band together to break the comic magazine.”


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Unskilled and Unaware of It

MiltonWhen asked, most individuals will describe themselves as better-than-average in areas such as leadership, social skills, written expression, or just about any flavor of savvy where the individual has an interest. This tendency of the average person to believe he or she is better-than-average is known as the “above-average effect,” and it flies in the face of logic… by definition, descriptive statistics says that it is impossible absurdly improbable for a majority of people to be above average. It follows, therefore, that a large number of the self-described “above average” individuals are in fact below average in those areas, and they are simply unaware of their incompetence.

It seems that the reason for this phenomenon is obvious: The more incompetent someone is in a particular area, the less qualified that person is to assess anyone’s skill in that space, including their own. When one fails to recognize that he or she has performed poorly, the individual is left assuming that they have performed well. As a result, the incompetent will tend to grossly overestimate their skills and abilities. A few years ago, two men from the Department of Psychology at Cornell University made an effort to determine just how profoundly one misoverestimates one’s own skills in relation to one’s actual abilities. They made four predictions, and executed four studies.

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The Good and Bad of Acute Stress Response

Way, way back in the yesterday of yon, man sought to eke out his pitiful existence among the prehistoric rocks of the world. Whilst rummaging among the rubble for a bit of scrumptious sustenance, it was quite possible that, in turning the corner of a large boulder, he would meet something unexpected and potentially dangerous, like a saber-tooth tiger, a woolly mammoth, or his mother-in-law. All, or any, of these could have produced a life saving mechanism in the human body known as “acute stress response” or the Fight or Flight response.

The acute stress response is the body’s way of instantly preparing to react to a perceived or real threat. Whether it’s to attack the source of fear, or to run from it, the body leaps into this mode. Walter Cannon, a life-long friend of Ivan Pavlov (of Pavlov’s dog fame), was one of the first to study this reaction. He proposed it was hard-wired into us. The key difference was if the surprise stimuli caused a reaction of fear or anger. Fear would result in flight, while anger would result in fight.

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England’s Armed Iceberg of War

HabbakukDuring World War II the Allies actively recruited the inception and development of new and unique weapons. They knew that innovation and creativity would be the juggernauts of the war. Ideas from making bats carry incendiary devices to the A-bomb were pursued, but perhaps none were as hugely ambitious as the aircraft carrier Habbakuk.

When Britain was taking a pounding from German U-boats they were desperate to build a ship that would not fall victim to Nazi torpedoes. The Habbakuk was destined to be a 2,000 feet long, 300 feet wide, and 2 million ton aircraft carrier with a hull 40 feet thick—made of ice that could take a few Nazi torpedoes. It was formidable enough to be dubbed a floating island.

Ice is relativity easy to come up with, thus should make for easy repairs when needed. Ice should be pretty durable, being the stuff that sank the Titanic, and like that famous predecessor, Habbakuk was purposed to be virtually unsinkable. The ship might have been, but the plans were not.

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