Tag: Science

A Great Disturbance…

“…as if millions of voices suddenly cried out in terror and were suddenly silenced.” Scientists at NASA catch a glimpse of cosmic devastation on a galactic scale, as a “death star galaxy,” fueled by a black hole, destroys its neighbor with a beam of radiation. “The telescope images show the bully galaxy shooting a stream of deadly radiation particles into the lower section of the other galaxy, which is about one-tenth its size…Tens of millions of stars, including those with orbiting planets, are likely in the path of the deadly jet…If Earth were in the way — and it’s not — the high-energy particles and radiation of the jet would in a matter of months strip away the planet’s protective ozone layer and compress the protective magnetosphere.” And what does that mean? “‘You would basically render extinct all surface forms of life,’ Tyson said. ‘But it may be that subterranean life is…immune to this kind of violence in the universe.‘” You heard the man…start digging.

The Andromeda Strains.

“Human beings evolved in gravity, and it makes perfect sense that some systems — especially the immune and skeletal systems — might not do well without it.” A new NASA study finds microbes and viruses may be particularly lethal on long space flights. “Even though astronauts are not now getting sick on their missions, we see very clearly statistically significant and reproducible change in immune functioning after two weeks in space.“

Hail Roadrunner.

“‘Nature is the final arbiter of truth,” said Seager, the Lawrence Livermore computer scientist, but ‘rather than doing experiments, a lot of times now we’re actually simulating those experiments and getting the data that way. We can now do as much scientific discovery with computational science as we could do before with observational science or theoretical science.‘” Developers tease the premiere of the first “petascale” computer, due out next year. It will be “capable of 1,000 trillion calculations per second [and] akin to that of more than 100,000 desktop computers combined.” Well I, for one, welcome our new petascale overlords.

We are Lincoln MEN 2B?

By way of Dangerous Meta, a cardiologist argues in a new, soon-to-be-published e-book that Abraham Lincoln might be the earliest known case of a rare genetic disorder. “Sotos believes Lincoln had a genetic syndrome called MEN 2B. He thinks the diagnosis not only accounts for Lincoln’s great height, which has been the subject of most medical speculation over the years, but also for many of the president’s other reported ailments and behaviors.“

Undone by The Great Eye.

Have we inadvertently killed Schrodinger’s cat? No, it’s much, much worse. Cosmologists at Case Western Reserve and Vanderbilt speculate that mankind may have hastened the end of the universe by observing dark energy in 1998. “[Q]uantum theory says that whenever we observe or measure something, we could stop it decaying due what is what is called the ‘quantum Zeno effect,’ which suggests that if an ‘observer’ makes repeated, quick observations of a microscopic object undergoing change, the object can stop changing – just as a watched kettle never boils…Prof Krauss says that the measurement of the light from supernovae in 1998, which provided evidence of dark energy, may have reset the decay of the void to zero — back to a point when the likelihood of its surviving was falling rapidly. ‘In short, we may have snatched away the possibility of long-term survival for our universe and made it more likely it will decay,’ says Prof Krauss.” D’oh! But wouldn’t this presume that at no other place or time in our unfathomably gigantic universe did any other civilization make the same observations? Given the odds of intelligent life out there, that seems unlikely. (And, if you think this all sounds goofy and ridiculous, just wait until we get to the multiverse…)

The Atlantic Sesquicentennial.

“In The Atlantic’s very first issue, in 1857, the magazine’s founders — an illustrious group that included Ralph Waldo Emerson, Oliver Wendell Holmes, Henry Wadsworth Longfellow, and James Russell Lowell — declared that they would dedicate their new publication to monitoring the development, and advancing the cause, of what they called ‘the American idea.’ And for the last century and a half, the magazine has been preoccupied with the fundamental subjects of the American experience: war and peace, science and religion, the conundrum of race, the role of women, the plight of the cities, the struggle to preserve the environment, the strengths and failings of our politics, and especially, America’s proper place in the world.” To commemorate the magazine’s 150th anniversary, The Atlantic Monthly publishes The American Idea, an anthology of articles which includes republished writings by TR, W.E.B. DuBois, Albert Einstein, John Muir, Helen Keller, and Vannevar Bush. (Alas, only ten of the included articles are online.)

The Dancer Upstairs.

Ok, this one’s a bit creepy. By way of Webgoddess, watch the rotating dancer to ascertain whether you’re left-brained or right-brained. I’m pretty right-brained, it seems (which makes sense, since I’m both left-handed and left-footed). But, if I changed tasks while the dancer was on — say went to click another window or focused on the list at left, she’d sometimes switch direction. Weird…well, I just hope my right-brain knows what my left-brain is doing.

The Forgotten Kinsey.

“Kinsey’s pioneering work is still one-of-a-kind because in all the time since, only a handful of sex researchers have even tried to match his breadth, depth, and scale. For all our obsession with sex, we’re skittish about studying it. There’s one major exception: a large survey, conducted in the 1990s, that far outdid Kinsey in terms of statistical reliability. It’s the most authoritative sexual self-portrait the country has. But you’ve probably never heard of its author, because unlike Kinsey, he has worked hard to keep it that way. Alfred Kinsey may have gotten the biopic, but according to Slate‘s Amanda Schaffer, it’s the University of Chicago’s Edward Laumann we should now be turning to for reliable data on carnal matters. “Kinsey’s data aren’t the last word on matters sexual, but they’re sometimes still the first.“

Life in the So-Called Space Age.

“If the current proposals to restart human exploration fail politically, indeed, the human space flight endeavor conducted under government auspices might well lose its momentum. I obviously hope that doesn’t happen. But it’s far from a slam dunk that we’re going back to the Moon and on to Mars.” Two companion pieces to today’s reflection on 50 years of Sputnik which I missed earlier: The Grey Lady hypothesizes about the next fifty years of space travel (suggesting its future as a public enterprise might be dubious) and takes a moment to consider the pop culture ramifications of the space age. “‘At the level of government, I think we’re still struggling as to why we’re sending people to space,’ Dr. Logsdon said. ‘It’s a decent question, and I think it’s an unanswered question.’” (My answer to this question, for what it’s worth, is here.)