Archive for the ‘Science’ Category

Monday
Sep 15,2008

Locals in Nepal are at a loss to explain how some 3,000 trees in a nearby forest in Banke, mid-western Nepal, collapsed in about 10 minutes.

The trees at the Shrikrishna Community Forest, some 360 km west of Kathmandu just started tumbling down. There was no gale, no storm that day. Just falling trees. Not knowing what to think or who to blame/give credit for, the locals are turning to supernatural theories.

“It’s a bad omen.” And, the District Forest Office (DFO) is taking no initiative to see if an UFO or otherwise was involved.

Spooky, eh? What could cause 3,000 trees to start tumbling down? Aslan maybe?

Image courtesy of crashmattb

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Tuesday
Jul 15,2008

hurricanelongseason.jpg

Hurricane season this year is expected to be longer, stormier and arrive earlier. Climate scientists are saying that this centuries storms are bigger than last century’s because the area of warm water that can support hurricanes is growing larger. The Atlantic Ocean is more hurricane friendly.

 ”There has been an increase in the seasonal length over the last century,” Jay Gulledge, a senior scientist with the Pew Center on Global Climate Change.

The estimated increase if 5 days longer than it was in 1915. The first named storm of this year arrived one day before the official hurricane season was to begin on June 1st. (I wonder, do hurricanes know they are not supposed to arrive before June 1st?)

There is no definitive link to global warming. (Give people time and they’ll find a way.) Climate models aren’t able to reproduce individual storms but the founder of the study above thinks out loud, “it’s likely that the warming caused by manmade greenhouse gases is a major factor in the seasonal shift based on observations of changes in recent decades and the predictions models are making for the changing conditions in the Atlantic basin.”

Let’s see, models can’t produce storms but they can predict. Hmm…something wrong here. The guy went on to say, “The length of the hurricane season is ‘one of the potentially big signals’ that could change in response to global warming.”

And he knows this because of why?

Friday
Jul 4,2008

squaremelons.jpg

 

How often do people thing they can do things better, improve on the way our planet and all its intricacies have been designed? We reroute rivers, relocate forests, try to make it rain, try to make it stop. One Japanese group has taken the initiative and has successfully reshaped the watermelon. Yup, to be sure. A group in Kagawa Prefecture Japan put growing watermelons into translucent plastic cubes while they were still on the vine, then let them grow.

The reason? To keep them from rolling off the table at supermarkets. Nope. So, it would be easier for them to fit into refrigerators. Remember, it was the Japanese who used to tape women’s feet so they wouldn’t grow also, presumably so it would be easier to get their feet in and out of their mouths when they said something stupid.

Wednesday
Jun 25,2008

superearth.jpg

 

There’s good news and bad news. The bad news is we are doing our darnedest to destroy the planet where we live. The good news is that astronomers think it’s just a matter of time before they find the Earth’s twin. Astronomers said that last week they found three super-Earths, bigger than our planet, rocky and orbiting a single star. Dozens of other masses were found around other stars.

“Being able to find three Earth-mass planets around a single star really makes the point that not only may many stars have one Earth, but they may very well have a couple of Earths,” said a planet formation theorist at the Carnegie Institution of Washington in Washington, D.C.

The key word there, of course, is theorist. As for me, since we are messing up this planet so badly, I can’t imagine why the Creator would give us another one to destroy. Still, the theorists are predicting they will find Earth’s twin in the next five years or so, give or take a millennium maybe?

“What is amazing to me is that for thousands of years humans have gazed at the stars, wondering if there might be another Earth out there somewhere,” Boss told SPACE.com. “Now we know enough to say that Earth-like planets are indeed orbiting many of those stars, unseen perhaps, but there nevertheless.”

Indeed they are orbiting though unseen? I don’t get it. Where is the proof? Still, like Jody Foster’s dad said in some movie, “If there is no life out there, it’s a terrible waste of space.” Do you think there is life out there? Why?

source 

Wednesday
Jun 25,2008

sulfurhexafluoride.png

Casio Computer has found a way to substitute fluorine gas for sulfur hexafluoride.  Sulfur hexafluoride is used in the processing of silicon thin films for LCD panels. As greenhouse gases go, sulfur hexafluoride is also 20,000 times worse than CO2. Casio thinks that if it eliminates this chemical the company will reduce its overall greenhouse gas emissions by about 205.

Casio Computer says  -

“Fluorine gas is difficult to handle because it is highly reactive and potentially explosive. The company solved this issue through careful management of hydrochloric acid and sulfuric acid levels. For the processing of silicon thin films, the company determined it could achieve the same quality as with sulfur hexafluoride by optimizing the volume of fluorine gas used and adjusting the voltage and other parameters.”

Evaluation of the use of fluorine gas will continue until the end of the year at such time a decision will be made. Does that line “highly reactive and potentially explosive” concern anybody else besides me? Casio also makes dandy wrist watches that can do all sorts of things, elevations, barometers, hail taxi cabs and such.

“Hey, Taro! Where’s you arm?”

“Ah, just another failed fluorine test for Casio. No big deal.”

source


Thursday
Jun 12,2008

The world’s speed and nuclear power do not belong in the same sentence, but sure enough China is doing its darnedest to build as many nuclear power plants as it can, using OLD technology. Their target is 4 new generators each year, through 2015.

Nuclear Plant Beijing Tianjin China

However, the nuclear plants are going to be just a partial answer for its mounting pollution, energy security problems and the fast growing electricity use, because they will not be able to provide more than 5 percent of its power. Is coal still an option for them? Did they never hear of wind or solar power?

China’s nuclear power companies want to export that ability and technology overseas and the biggest problem would be a huge push to expand the country’s reliance on nuclear power domestically.

Nuclear power is an alternative if it is managed correctly, and when it does go wrong, it goes seriously wrong. But, who manages it correctly?

Friday
Jun 6,2008

The Andes Mountains

Did you know that mountains grow at a relatively fast rate (a few mm each year) until the forces that form them are no longer active? Apparently that’s the case with the Andes Mountains which are one of the longest and highest mountain ranges in the world.

For millions of years the Andes grew slowly. Then all of a sudden, 10 – 6 million years ago things changed. Geologists at the University of Rochester in NY, led by professor Carmala Garzione, revealed that in the last 4 million years the Andes grew by as much as 2,500 meters. Furthermore, things are not about to stop.

Cordilliera de los Andes

Formed in the Jurassic period (150-200 milion years ago) as a result of plate tectonics processes which caused a large sheet of crust, the Nazca plate, they slid under the South American plate. What’s more,the Andes are still active.

This new discovery may suggest that the tectonic plates theory, which explains how mountains are formed (two tectonic plates pushing against each other), should be updated. The new “theory” was named delamination, and refers to denser rocks that can detach from the underside of the crust allowing the lighter crust to rise in sudden bursts.

Garzione and her colleagues are now trying to find out what were the effects of such a rapid growth of the Andes (and probably other mountains, too) on climate and the evolution of life on Earth.

Images by 1, 2, 3, 4

Monday
May 26,2008

Northumberland Street plastic bags
image by WYGD

Daniel Burd is an 11th grader from Canada, that wants to turn his school science project into a dream come true. The guy is certain that if a plastic bag takes 1,000 years to decompose it’s because of the microorganisms behind it, and Burd thinks he has a method that will cause them to decompose in just three months.

The young scientist searched for those “guilty” of decomposing plastic bags and found two strains of bacteria that work together; the primary bacteria is Sphingomonas while the other one is Pseudomonas. Creating an industrial solution for plastic bags that would only last for three month is extremely simple. “All you need is a fermenter . . . your growth medium, your microbes and your plastic bags,” Burd said.

Though it doesn’t solve the pollution in the Pacific, this guy’s idea is a simple enough that it might just work well enough to change the world (at least a bit). He deserves congratulations and some money to continue his research and make it a real solution, instead of a project.

You might also be interested in:

Naked Bike Riders Protest Car Pollution

Lycra-trimmed, ultra-mini Salmon-Skin Bikini. Are you serious?

Source: The Record

Wednesday
May 21,2008

The Phoenix Mars Mission is a true partnership between the government, academia and the industry that was designed to study the history of water and the habitabillity potential on the Martian arctic’s ice-rich soil.

[youtube]http://www.youtube.com/watch?v=5TaP8YMM524[/youtube]

If everything goes as planned, on Sunday – May 25th, the Phoenix space craft is going to land on Mars. It will enter the Martian atmosphere at 13,000 mph and after finishing a set of events it should land on three “feet” at 5mph. Let’s hope everything will go smoothly and we’ll be able to find out more about the red planet.

If you want to be informed, this is NASA’s landing blog.

via Courier-Journal

Thursday
May 8,2008

Chile’s Chaitén Volcano Erupts

A volcano is the last place to be nearby when it erupts and after 9,000 years of slumber the awakening is obviously beyond words. Chile’s Chaitén Volcano went off, spewing lava and ash 12 miles high into the air. As if the whole image wasn’t terrible enough, the five-day eruption was accompanied by lightning and rain which carpeted the whole surroundings in 6-inch deep ash and mud.

Thick Volcanic Ash - Chile’s Chaiten Volcano

More than 4,000 people were forced to leave their home town of Chaitén by boat, from May 2 when the volcano showed first signs of an explosion.

Chile’s Chaiten Volcano erupting

A thick column of ash was sent into the stratosphere, streaming across Patagonia to the Atlantic. Officials in Argentina reported they have noticed ash falling in the southern part of the country.

Yelcho River covered in ash and mud

Though the amount of lava that is very small, very thick and moving slowly right now, Government vulcanologist Luis Lara warned that the dangers the eruption may have caused could last for months.

Radiocarbon dating suggests that the volcano last erupted around 7420 B.C., according to the Smithsonian Institution’s Global Volcanism Program.

Chaiten Volcano Erupting - space view

© image copyright : National Geographic