Monthly Archives: April 2006

The Balance of Risk

Tae Kwon Do photoLet’s suppose your child wants to take a martial arts class. Being a conscientious parent, you check out the local dojos and find two good places. Both are suitable and well equipped. Both practice fighting with contact – but there’s one major difference. One dojo insists on a full range of protective padding – hands, feet, chest protectors, shin guards – the whole works. The other takes a much lighter approach – hands and feet, and sometimes not even those.

To the conscientious parent, the first place is going to look much safer, right? But when you look at the injury rates of the two dojos, you notice something odd: They’re about the same. The kids covered in foam padding are getting just as many bruises, scrapes, and sprains as the kids wearing almost none. What could be going on here?

What’s happening is a process known as risk compensation. It’s a tendency in humans to increase risky behavior proportionately as safeguards are introduced, and it’s very common. So common, in fact, as to render predictions of how well any given piece of safety equipment will work almost useless.

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Musical Torment

When the human ear encounters music, a number of brain systems are engaged by the incoming sound. The music signal is first directed to the thalamus, which relays the information to the primary auditory cortex. Once activated, this part of the brain is thought to identify the fundamental elements of the music, such as pitch and loudness. The secondary auditory cortex then processes the harmony, melody and rhythmic patterns, and the tertiary auditory cortex seems to integrate everything into the overall experience of music. Such is the process to the best of modern science’s understanding, but the complex mental digestion of music is not yet fully understood.

Equally difficult to explain is a strange phenomenon known as “musical hallucinations” which is a condition very similar to having a song stuck in one’s head; but the music is considerably more true-to-life, it is heard almost non-stop, and it is practically impossible to ignore.

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America’s Discarded Superconducting Supercollider

The N15 shaft of the Superconducting Supercollider tunnelDeep beneath the plains of central Texas lies a catacomb of tunnels once meant to house the most expensive physics experiment ever devised. That experiment, the Superconducting Supercollider, would have revolutionized our understanding of the physical world by giving us our first glimpse of the “God Particle.” And, proposed during the Cold War, it would have been a monument to the technological and scientific prowess of the Western world.

But in 1993 after investing over $2 billion dollars into the project, President Clinton and Congress cancelled it entirely. Highly sophisticated machinery and laboratories were simply sold to the highest bidder, and thousands of acres of empty land were parceled off and sold as well. All that now remains are 200,000 square feet of still-vacant factories and labs, and over 30 km of carved-rock tunnels slowly filling with water.

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The Hutchison Effect

Ice Cream being levitated by the Hutchison EffectIce Cream being levitated by the Hutchison EffectAn inventor in Canada named John Hutchison is credited with one of science’s most unusual and controversial discoveries. It is described as a “highly-anomalous electromagnetic effect which causes the jellification of metals, spontaneous levitation of common substances, and other effects.” It is known as the Hutchison Effect, or the H-Effect for short.

What the H-Effect is purported to do is nothing short of extraordinary. It is said to cause objects to defy gravity, cause metal to spontaneously fracture, cause dissimilar materials to fuse (such as metal and wood), and other strange phenomena. Hutchison has captured the effect on video many times, and claims to have demonstrated it for scientists from U.S. Army intelligence. But the claims are mired in doubt because the effect is not reproducible, even by the discoverer himself.

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Warm-Blooded Plants

Skunk CabbageIf you live in the Northeastern US, and you walk in the woods on spring mornings, you’re likely to see a skunk cabbage. Indeed, you might see a skunk cabbage growing while the snow is still on the ground. What you may not notice, unless you look closely, is that the snow around the skunk cabbage has melted. It’s not a spectacular sight, but around all of the skunk cabbages you see, there will be a small hole in the snow.

What’s happening here? Is the sun warming the darker plants and melting the snow? No. Actually, the phenomenon you’re seeing is called thermogenesis, and it’s a normal ability of the plant. Or to put it another way, the eastern skunk cabbage is warm-blooded. Its ability to generate heat enables it to grow and flower while the snow is still on the ground – even though the plant is not frost-resistant. The frost will never touch it.

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