Monthly Archives: November 2007
Space Radio: More Static, Less Talk
Arecibo Observatory, a 305-meter-wide radio telescope (courtesy of the NAIC – Arecibo Observatory, a facility of the NSF)Owing to radio’s aptitude in transporting information, our planet is endlessly peppered by man-made low-frequency radiation. Phone conversations, computer data, text messages, radar echoes, sitcoms, and morning DJ chatter are all electromagnetically belched in every direction at the speed of light– including straight up into outer space.
Purveyors of science fiction are fond of exploring the ramifications of this radio leakage, suggesting that someday an advanced alien race might materialize to befriend, enslave, or destroy humanity after a little electromagnetic eavesdropping from afar. Indeed, if there happen to be any radio-savvy civilizations within 114 light years of Earth– an area which encompasses roughly fifteen thousand stars– humanity’s earliest meaningful transmissions will have already reached them.
Similar speculation appears in science non-fiction, such as the Search for Extra-Terrestrial Intelligence (SETI) project, which strains its giant radio ears for extraterrestrial signals. When consulting the wisdom of probability, one finds that the universe ought to be teeming with technology-toting aliens; but aside from a couple of interesting-but-inconclusive detections, no discernibly intelligent patterns have ever been observed by Earth’s space-listening instruments. One might surmise that the conspicuous silence is “evidence of absence,” but such a conclusion might be a bit premature under the circumstances. Read the rest of this Article ▶
The Sound of the Aurora
Herein lie the first Damn Interesting words of our most recent writer, Richard Solensky.
Aurora over Bear Lake, AlaskaIf you happen to be reasonably close to one of the Earth’s magnetic poles, the next time there’s a particularly intense aurora, go outside. Get as far as you can from sources of noise – traffic, barking dogs, TVs – and listen. Listen carefully.
If conditions are right, you may hear some unusual noises. Earwitnesses have said the sound is like radio static, a small animal rustling through dry grass and leaves, or the crinkling of a cellophane wrapper. Inuit folklore says it’s the sound of the spirits of the dead, either playing a game or trying to communicate with the living.
It’s the sound of the aurora itself. And the cause is currently unknown. Understanding the phenomenon is made more difficult by the fact that though there are many anecdotal reports, the sound has yet to be recorded. Read the rest of this Article ▶
The Gimli Glider
“Holy shit.”
Inside the cockpit of the cruising airliner, Captain Bob Pearson was understandably alarmed at the out-of-the-ordinary beeps that were chiming from his flight computer. On the control panel, an amber low fuel pressure warning lamp lit up to punctuate the audio alarm.
First Officer Maurice Quintal, copilot of Air Canada Flight 143, checked the indicator light to determine the cause of the computer’s complaints. “Something’s wrong with the fuel pump,” he reported.
The mustachioed Captain Pearson pulled out the trusty Boeing handbook, his fingers dashing through the pages to find the specifics of the warning. To his relief, the troubleshooting chart indicated that the situation was not as perilous as it might seem: the fuel pump in the left wing tank was signaling a problem, a minor issue considering that gravity would continue to feed the engines even if the pump failed.
“You know,” he commented to Copilot Quintal, “I would not take this air…” He trailed off as the computer blurted out another four beeps, and the indicator panel lit up like a Christmas tree decorated with bad news. “Oh fuck,” Pearson lamented, “we’ve got to go to Winnipeg.” Read the rest of this Article ▶
Guppy Love
It has long been observed– though not scientifically– that women seem to show a vague preference for men who are already spoken for. This observation is known as the wedding ring effect, and there are numerous competing theories as to why it may be. Some suggest that the wedding ring is a cue that a man is “safe,” a passing opportunity for empty flirting; while others theorize that the female psyche sees the ring as an indication that another woman has deemed him worthy. There is also the possibility that the increase in feminine attention is purely imagined, a way for a married man to reassure himself that he’s still got “it” (or for that matter, that he ever had “it” to begin with).
It is weighty philosophical matters like these which have plagued civilization since its inception, but like so many of the great riddles, the answer may be found in a fish–in this case in a little matter called guppy syndrome. Read the rest of this Article ▶
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