2002.07.27
Nature:
BaBar balances
matter-antimatter books. Experimental measurement fits theory of
fundamental particle physics.
"The asymmetry between matter and antimatter is the difference between
a universe filled with stars, planets and galaxies, and one in which
there is nothing but a glow of radiation. When matter and antimatter meet,
they annihilate one another in a burst of gamma rays. Had the Big Bang
produced them in equal amounts, it would have set the cosmic stage for an
orgy of self-destruction."
Scientific American:
The
Little Spacecraft that Could ... and Did. Decades after their original
objectives were completed, Pioneer, Voyager and IMP-8 keep on trucking.
"Where exactly is the edge of the sun's influence? One of the greatest
surprises raised by the original Pioneer mission was ... the persistence
of the solar wind, the stream of charged particles that radiates from the
sun.... [W]ith Pioneer at a distance of 7.5 billion miles, it has yet to
escape the long arm of the sun's reach."
Nature:
Early bird ate seeds.
Gut contents of new-found fossil reveal ancient tastes.
"The heyday of the dinosaurs was a golden age for bird evolution.
Archaeopteryx, first reported in 1861, lived 150 million years ago in
what is now southern Germany..... Clothed in feathers and with fully
developed wings, Archaeopteryx had many primitive, reptilian features,
including teeth and claws on its wing fingers."
2002.07.23
Houston Chronicle:
Four charged
in theft of moon rocks. Material from Houston worth $1 million.
"Two men and a woman were arrested in Orlando, Fla., over the weekend as
America quietly marked the 33rd anniversary of the first Apollo moon
landing. Another woman was arrested in Houston on Monday. Three of the
four suspects in the bizarre case were working at Johnson this summer as
college interns or co-ops as they pursued careers in space science and
engineering."
WSJ (subscription):
Tattoo
Taboo: In South Carolina You Still Can't Get One, Legally.
"... in the 1960s, after a dirty tattoo parlor in New York's Coney Island was
blamed for a hepatitis outbreak, most states banned the practice. Two
decades later those prohibitions began to be lifted, and today they
remain in only two states -- [in South Carolina] and in Oklahoma."
2002.07.19
Houston Chronicle:
Woodlands
Mall ready for a big step outdoors.
"A pedestrian-oriented, open-air shopping center of upscale retailers
and trendy restaurants will be built next door to the air-conditioned
retail fortress.... The new-style Main Street centers have smaller
stores, usually two-story ones, with varied exteriors.... The shopping
center will be connected to the new Woodlands Waterway, a mile-long
canal that will be similar to the San Antonio Riverwalk."
Houston Chronicle:
9/11
event ruptures faiths in Woodlands. Disunity for all.
"... residents of The Woodlands must choose between competing 9/11
events: an evangelical commemoration at the Cynthia Woods Mitchell
Pavilion or an all-faiths event at Bear Branch Sports Park."
2002.07.18
I just heard a cut on the radio from the new
Eminem CD.
[Yeah, I know, it's been out for two months. So I'm out of touch.]
Whoa! You know, that rap music -- it might be catching on!
It goes without saying, of course, that the lyrics are completely
unsuitable for children and older adults. Or in general, civilized
people.
Maybe I'll just stick with Will Smith and Lauryn
Hill. Sort of like living in the 1950's and listening to that nice Rick Nelson
boy playing rock and roll.
2002.07.13
Washington Post:
Snakeheads'
Luck Put Pond in the Soup. In Sparing His Fish, Crofton Man Imperiled Others.
"The mystery of how ravenous Chinese walking fish wound up in a Maryland
pond has been solved, according to state investigators...."
Nature:
Snake rips crabs apart.
"Zoologists have found a snake that tears its victims into bite-sized
pieces. The other 2,700 or so known snake species are thought to swallow
their prey whole."
2002.07.11
Washington Post:
Earliest
Human Ancestor? Skull Dates to When Apes, Humans Split.
"Everything scientists know about human evolution is based on a
relatively small number of fossilized bones that have been unearthed
over many decades of searching.... These earliest humans -- represented
by a smattering of skulls, bones and bone fragments -- dotted the African
landscape until distinctly human species arose about 2 million years ago.
Modern humans are only about 100,000 years old."
> That last bit about "modern humans = 100,000 B.C.E." -- that isn't a
terribly hard and fast number, although it isn't exactly arbitrary either.
2002.07.08
WSJ (subscription):
Hotmail
Has Quite a Job to Save Its E-Mail Empire From Spam.
"Hotmail started out free of charge. One reason Microsoft is now trying
to persuade users to pay for it is that the drastic increase in spam
has made free e-mail very, very expensive to offer.
"Bengt-Erik Norum, a Hotmail operations manager, says spam, by nature,
arrives all at once -- in torrents -- rather than in a steady stream,
like regular e-mail. To handle these peaks, he said, you need to greatly
overbuild your computer system."
Scientific American:
First
Humans to Leave Africa Weren't Necessarily a Brainy Bunch.
"... as is so often the case in paleoanthropology, the emerging picture
appears to be far more complex than previously thought."
2002.07.07
One more for Independence Day --
Arthur Schlesinger Jr., New York Times:
When
Patriotism Wasn't Religious.
"The [Supreme Court] handed down its decision against compulsory pledges
of allegiance and flag salutes on Flag Day in 1943, when young Americans
were fighting and dying for that flag around the planet. The American
people then, far from denouncing the court, applauded the decision as a
pretty good statement of what we were fighting for. Are we backsliding
today?"
2002.07.05
BBC:
Scientists
estimate 30 billion Earths.
"Virtually all the stars out to about 100 light-years distant have been
surveyed. Of these 1,000 or so stars, about 10% have been found to
possess planetary systems.
"So, with about 300 billion stars in our galaxy, there could be about 30
billion planetary systems in the Milky Way alone; and a great many of
these systems are very likely to include Earth-like worlds, say
researchers."
> I guess they mean "Earth-like" in the broadest sense -- terrestrial.
However, the vast majority of the extra-solar gas giants that have been
identified (so far) are in disturbed orbits that make it unlikely that
their sibling terrestrials have survived.
Nature:
Big city, bright lightning.
Hot, dirty conurbations are thunderstorm magnets.
"A new study of Houston, Texas, the fourth largest city in the United
States, finds that it attracts 40% more bolts-from-the-blue than the
surrounding countryside."
Associated Press:
Fossil
identified as earliest land walker.
"A fossil found in 1971 has been newly identified as the earliest known
animal built to walk on land, a salamanderlike creature that marked a
previously unknown stage in the evolution of fish into the ancestors of
all vertebrates alive today. The toothy animal, Pederpes finneyae, lived
between 348 million and 344 million years ago in what is now Scotland."
Mathematical
Lego Sculptures.
> My six-year-old is way into Lego these days. But I don't think he'll
know what to make of this site.
> In fact, when I showed it to him, he summarized it pretty nicely:
"It's an adult who's still into Legos!"
2002.07.02
Houston Chronicle:
U.S. bungled
arrest request. Federal agencies were not aware of May 21 warrant
from Mexico.
"Rogelio Montemayor, the former Mexican state oil director caught at the
center of a major political scandal back home, tried to surrender to U.S.
authorities in Houston Monday after spending months as a fugitive. But
federal officials at all levels -- the FBI, the Marshals Service and the
U.S. Attorney for the Southern District of Texas -- said they were unaware
of any arrest warrant against him."
> Good see everything back to normal at our law enforcement agencies.
(Sarcasm.)