Showing posts with label Nature. Show all posts
Showing posts with label Nature. Show all posts

Wednesday, August 24, 2011

Hurricane Irene

At Miami Herald, "Bahamas taking a battering from Cat 3 Hurricane Irene," and USA Today, "Powerful Hurricane Irene menaces Bahamas." Also at New York Times, "Hurricane Irene Gains Strength as It Batters the Bahamas."

Parrots in Irvine

I didn't have my camera. But I was out with the whole family last night and we stopped at 7-11 for refreshments. My wife and oldest boy went in and I waited with my youngest in the Jeep. Next thing I know I see this woman walk out of the 24-Hour Fitness across the parking lot and she comes over near us with her mouth just gaping. She looked like she was talking to herself and I didn't see a phone or a headset. I said to my son, "What is that lady doing?" We had the music on loud so I couldn't hear anything outside. But then I looked over at the wild olive trees and I saw them. Wild parrots were munching away. I've never seen them before. Indeed, I didn't even know we had them. So checking online, the O.C. Register has this, from 2006, "Parrots prosper in Orange County":
Parrots might be gravely endangered in their native rain forests, but not in Orange County, where they've taken up residence in large flocks, attracting both love and hate from people who share their space.



There's a mystery attached to the birds' presence. No one is exactly sure how they got here. One popular theory is that their ancestors escaped from commercial bird importers, surviving because they were wild birds that knew how to forage for food. Another is simply that they migrated north from rain forests in Central and South America.



Large flocks exist in Orange, Santa Ana, Tustin and elsewhere in the county. Some flocks can number hundreds of birds. They generally eat fruit and nuts of exotic plants that, like themselves, have been imported from tropical climates.



Amazon parrots found here include endangered red-crowned parrots, lilac-crowned parrots, red-lored parrots, white-fronted parrots, yellow-headed parrots and blue-fronted parrots. They can be distinguished by stocky bodies and short, squared tails. Mitred parakeets are also common here.
More from Oscar Gonzales.



P.S. My smarty-pants oldest son comes back and I say, "Hey, check out those parrots!" And he says, "I saw them. They escaped from PETCO."

Tuesday, May 3, 2011

Hoax? Viral Video Claims Dude Survives Lightning Strike — Twice!

At London's Daily Mail, "How unlucky can you get! Man survives being hit by lightning TWICE in remarkable CCTV footage":

Looks pretty real, but check MSNBC, "Lightning striking twice? Maybe not even once":

The first sign that the video might be fake, according to Vladimir Rakov, electrical engineer and co-director of the University of Florida Lightning Research Group, is that people almost never survive direct lightning strikes like the one shown in the video. "The chance of survival in the case of a direct strike is essentially zero," Rakov told Life's Little Mysteries. That's because lightning bolts emanating from storm clouds convey a gigajoule of energy, he explained — which is about enough to melt a ton of steel.

The vast majority of the 240,000 people who survive lightning strikes worldwide each year do not actually get hit directly. "They are struck by 'side flashes,'" Rakov said. "Lightning might strike a building near them, for example, and there's a side flash that jumps to them carrying a small fraction of the original lightning bolt's energy. In that case, they can survive and even walk away."

Wednesday, March 16, 2011

Legacy of Hiroshima Heightens Fears in Japan

As we discussed the earthquake and tsunami on Monday in class, I noted that Japan was the world's only country that had previously faced a nuclear holocaust. The potential (and now real) meltdown of nuclear reactors there has an enormous historical significance for the Japanese, beyond the comprehension or experience of any other nation. At WSJ, "Hiroshima's Legacy Heightens Fears":
TOKYO—Mikiso Iwasa was 16 years old when the atomic bomb struck Hiroshima on Aug. 6, 1945. He was in the backyard of his house, a little less than a mile away from ground zero. He was smashed onto the ground by the force of the bomb.

Mr. Iwasa escaped, but the deadly effects of radiation caught up with him later: He suffered from skin cancer twice as well as prostate cancer. He lost his hair. His nose and gums bled. He developed rashes all over his body.

For the only country ever to have experienced the atomic bomb and the horrific effects of concentrated radiation exposure, the nuclear crisis escalating in Japan has had a crippling effect on the nation's collective psyche.

Thursday, December 16, 2010

Electric Eel

I just learned something about electric eels. Turns out they can generate a electrical current "capable of producing a shock at up to 500 volts and 1 ampere of current (500)." (600 according to National Geographic.). That's enough to kill a human being, and it certainly put the lights out of this alligator [crocodile?] looking for an afternoon meal. Nature is endlessly fascinating. It really is a jungle out there.

Thursday, December 2, 2010

NASA Reveals New Life Form Discovery

At NYT, "Subsisting on Arsenic, a Microbe May Redefine Life":

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Scientists said Thursday that they had trained a bacterium to eat and grow on a diet of arsenic, in place of phosphorus — one of six elements considered essential for life — opening up the possibility that organisms could exist elsewhere in the universe or even here on Earth using biochemical powers we have not yet dared to dream about.



The bacterium, scraped from the bottom of Mono Lake in California and grown for months in a lab mixture containing arsenic, gradually swapped out atoms of phosphorus in its little body for atoms of arsenic.



Scientists said the results, if confirmed, would expand the notion of what life could be and where it could be. “There is basic mystery, when you look at life,” said Dimitar Sasselov, an astronomer at the Harvard-Smithsonian Center for Astrophysics and director of an institute on the origins of life there, who was not involved in the work. “Nature only uses a restrictive set of molecules and chemical reactions out of many thousands available. This is our first glimmer that maybe there are other options.”
And at National Geographic, "NASA Life Discovery: New Bacteria Makes DNA With Arsenic." With a link to NASA's homepage.

Friday, October 22, 2010

Great White Kills Boogie Boarder Off North Santa Barbara County

At CNN, "Shark kills 20-year-old man off beach on Vandenberg Air Force Base." And at KEYT Santa Barbara, "New Details: Deadly Shark Attack Kills Local Student."

And from Pete Thomas, "
Surfer Fatally Attacked by Shark Off Central California":
According to the Florida-based International Shark Attack File, before Friday's attack there had been only eight fatal attacks by white sharks on humans since 1916.

However, there is a consensus among some scientists that white shark population off California is increasing.

Christopher Lowe, who runs the Cal State Long Beach Shark Lab, attributes this to a longstanding ban on fishing for white sharks, a longstanding ban imposed on gill-net fishing in white shark nursery areas close to the coast, and the phenomenal rise in the number of California sea lions, which constitute a readily available food source for large white sharks.

Lowe, however, has not implied that this will translate into more attacks on humans, because white sharks have evolved over millions of years into such specialized predators.

Patric Douglas, CEO of Shark Diver, which is a California-based commercial shark-diving company that has extensive experience with white sharks, has witnessed the predators' behavior up-close dozens of times and can attest to their cautious, investigatory approach to possible prey.

Douglas agrees with scientists that most, if not all white shark attacks on humans involve mistaken identity, and advises people to stay out of the water very early in the morning when the sun might be at such an angle as to make it difficult for sharks to discern people from prey -- notably pinnipeds.

"Because that's when most of the attacks happen," Douglas said. "Just stay out of the water and give the sharks their due, because that's their time."
Added: "Surf Beach Shark Victim is Identified."

Sunday, September 5, 2010

Althouse at the Cool Reflection Café...

Ann's always got something beautiful going on over there. I'm still holding off on a new camera (for obvious financial reasons), but seeing this kind of lovely photography almost makes me want to take a second job:

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Thursday, August 26, 2010

Thursday, August 19, 2010

Mama Lionesses

William likes Mama Warthogs. But it's hard to beat this clip of a mama lioness killing a cheetah. And note: "Lionesses do the majority of the hunting for their pride, being smaller, swifter and more agile than the males, and unencumbered by the heavy and conspicuous mane, which causes overheating during exertion."

Don't mess with the mamas!

Tuesday, December 15, 2009

First Snow, Cascadel Woods, California, December 2009

My wife's uncle owns a cabin at Cascadel Woods, in North Fork, California, about an hour north of Fresno. Family members sent pictures from the first snow last week. The sun is setting over the San Joaquin Valley, downs West from the mountains:

This view is literally just a few steps across the road from the driveway to the property. There's a creek that runs down to a waterfall. Sitting at this spot in 1992, I asked my wife to move to Santa Barbara with me, where I was headed to start grad school that September. It was Memorial Day weekend, if I recall. The family has a huge holiday barbecue there every year. Thought I'd leave this one at top overnight for a little more joyous holiday feel around here, considering ...

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UPDATE:

Thinking about it last night, it could have been 4th of July 1992 when I asked my wife to come with me to Santa Barbara. Either way, it's a pretty sentimental memory.

Thursday, March 12, 2009

Eagle Recovered

Professor Robert Lieber at Georgetown University is the editor of "the eagle" series of books on U.S. foreign policy. The most recent volume is Eagle Rules? Foreign Policy and American Primacy in the Twenty-First Century, and previous iterations have included Eagle Resurgent? The Reagan Era in American Foreign Policy, and Eagle Entangled: U.S. Foreign Policy in a Complex World.

I was reminded of Lieber's edited collection last night while visiting Perri Nelson's weblog, which features
the most fascinating series of photographs on the near-death experience of this eagle:

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It turns out two eagles fighting for the same prey collided in mid-air and the eagle above was knocked out briefly and almost drowned in the water. But he pulled himself up and shook himself off atop of this tree, and before flying off into the air, he tightened up his feathers in a pose that's quintessentially American. Here is the caption from the photographer:

The bedraggled Eagle circled me once - then lit atop a nearby fir tree. He had a six-foot wingspread and looked mighty angry. I was concerned that I might be his next target, but he was so exhausted he just stared at me. Then I wondered if he would topple to the ground. As he tried to dry his feathers, it seemed to me that this beleaguered Eagle symbolized America in its current trials ....

My half-hour wait was rewarded with this marvelous sight. He flew away, almost good as new. May America recover as well.
Magnificent. View the whole series of ten photographs, here.

See also Lieber's recent article debunking the latest theories of American decline, "Falling Upwards: Declinism, The Box Set."