Archive for the ‘Science’ Category

World’s Largest Golden Orb Weaver Spider

Wednesday, October 21st, 2009

A researcher says that he has identified the largest known golden orb weaver spider in the world. It’s an impressive looking beast with a body length over 1.5″ and leg-span over 5″.

Nephila komaci

I have read several articles claiming it’s orb can be more than a meter wide and that it is also the largest web-making spider in the world. I think what they actually mean is that it is the largest web-making species of Nephila in the world. I have seen much bigger orb webs made by much bigger spiders, such as Japan’s onigumo (Araneus). Their leg-spans might be shorter than Nephila komaci, but I have seen them with bodies well over 2″ long (I’d say over 3″ long, but that could be a case of inflated memory!) and orbs more than 5′ across. I saw one eating a dragon fly while suspended midway between two electric poles more than 40′ apart.

Onigumo

Once, an onigumo almost landed on my head when I opened my back door. It gives me the willies just thinking about it. I think that onigumo means demon spider in Japanese. It’s an appropriate name.

Update July 18, 2010: I saw several golden orb weavers in Nail’s Creek State Park in Texas that had bodies over 2″ long, but the leg-span still wasn’t as wide as Nephila komaci’s.

Also, check out the photos of enormous communal webs in the same park.

See Wired and Spiegel Online.

[Update: Disabling comments on this article because of the number of spam-bots it attracts.]

Careers of the Distant Future

Wednesday, September 30th, 2009

I cannot escape the thought that if technological “progress” were allowed to proceed indefinitely and unhindered by government regulation, cosmic catastrophe, or divine intervention life should become depressingly dull, an unrelenting exercise in expanding and contracting one’s ribcage while seeking out the next momentary diversion or adrenaline producing near-death experience. People will be forced to invent virtual realities in which to experience real life. The only urban career left will involve helping virtual tourists get the most out of their virtual vacations. The happiest people will take their cue from the Amish and eschew labor-saving devices in favor of dirt and sweat and the vagaries of uncontrolled climate.

Same-day update: Back in 2007 Michael Swaim wrote a humorous piece about the most common SF visions of the future. It’s pretty good if you keep in mind that he was only writing for fun: The 8 Most Common Sci-Fi Visions of the Future (And Why They’ll Never Happen).

Humans Essential Part of Ecosystem

Thursday, September 24th, 2009

Researchers are just figuring out what has been obvious to everyone who takes the Biblical account of creation seriously, whether literally or metaphorically: humans are an essential part of the global ecosystem.

Transhumance Helps Vulture Conservation

ScienceDaily (2009-09-23) — Researchers in Spain have shown for the first time the close space-time relationship between the presence of the griffon vulture and transhumant sheep farming in mountain passes. Transhumance — the seasonal movement of people with their livestock — has fallen in some parts of Spain by up to 80 percent over the past four years. The scientists say that traditional livestock farming practices are crucial for the preservation of mountain ecosystems.

For the Gullible

Monday, May 4th, 2009

White blood cells can spontaneously grow legs, move themselves around the body, and communicate with other cells. Isn’t evolution amazing! It’s so…so…providential!

White Blood Cells Can Sprout ‘Legs’ And Move Like Millipedes

ScienceDaily (May 4, 2009) — How do white blood cells — immune system “soldiers” — get to the site of infection or injury? To do so, they must crawl swiftly along the lining of the blood vessel, gripping it tightly to avoid being swept away in the blood flow, all the while searching for temporary “road signs” made of special adhesion molecules that let them know where to cross the blood vessel barrier so they can get to the damaged tissue.

Weizmann Institute of Science (2009, May 4). White Blood Cells Can Sprout ‘Legs’ And Move Like Millipedes. ScienceDaily. Retrieved May 4, 2009, from http://www.sciencedaily.com/releases/2009/05/090504094424.htm#

Personal Soundtrack Wardrobe

Thursday, April 2nd, 2009

Last year ThinkGeek came out with the Personal Soundtrack Shirt. The built in speaker plays mp3 files from an SD memory card.

Now, combine that with Warwick Audio’s Flat Flexible Loudspeaker, a lightweight, flexible membrane-like speaker. Instead of wearing a speaker on your chest, your entire outfit could be made to play your music.

With some ultra-thin solar cells painted onto your sideways, Marky Mark ballcap and parasitic power-harvesting sneakers, you could be the life of your perpetually very own party.

Woohoo! I can finally ditch the 125 lb boombox I’ve been carrying on my shoulders since 1984!

Global Warming My Icicles

Tuesday, December 16th, 2008

Yahoo reported a temperature of -8° in Denver yesterday. Others tell me it was -19° at DIA just to the east and -15° in the plains to the north. I believe that is the coldest it has been in my 12 years in Denver. We had one week last winter that was the second coldest. It was around -10°.

Yep. Colder temperatures is actually evidence for global warming.

(Hint: Notice the temperature difference between the city and the surrounding country. That could be important, kids.)

The Eyes Have It

Friday, December 12th, 2008

Japanese Billboards Are Watching Back
In Japan, NTT is testing a digital billboard system that watches back
Martyn Williams, IDG News Service
Friday, December 12, 2008 01:10 AM PST

“On many street corners and railway stations there are many digital signs,” said Tetsuya Kinebuchi, a senior research engineer at NTT’s Cyber Space Laboratories and developer of the system. “To automatically measure the effectiveness of the advertisements we can put a camera and PC nearby, and by using the image from the camera we can estimate how many people are looking at the monitor.”

Interesting. I’ve always wondered about the effectiveness of such advertising. Does it really accomplish anything beyond generating simple name recognition among the public and a steady income for otherwise useless marketers? What is the ratio of nuisanse to profit? Outdoor advertising frequently doesn’t make it past my background noise filters.

Computer and television ads are a little more problematic. I make a point of not looking at the images on pop-up ads. Whatever slips past my pop-up killer gets killed while I focus my eyes on something else. I don’t want to encourage them. I record almost everything I watch on TV so that I can skip the commercials. Product placements don’t offend me as long as they aren’t too obvious or distracting, but I hate those banners and pop ups that many channels have adopted.

The system has its limits. It doesn’t seek to identify individuals — NTT is worried about the negative implications of such a system — but it will attempt to figure out how many of the people standing in front of an advertisement are actually looking at it.

That might be true during the beta, perhaps even during the first few production iterations. It won’t stay true for long, though. If the technology exists, big brother will find a way to use it. The advertisers will tweak their displays to force more passers-by to look, and power hungry statists everywhere will drool over the added potential for herd control.

Leif Did It

Thursday, December 11th, 2008

I don’t know how, but those dastardly Vikings managed to spike the Greenland tundra in order to sabotage the climate 1000 years later. It’s Norsogenic Global Warming, I tell you!

Methane, Potent Greenhouse Gas, Flowing Into The Atmosphere From Tundra Much Faster Than Expected
ScienceDaily (2008-12-11) — Much more methane gas is being emitted into the atmosphere from the tundra in northeast Greenland than previous studies have shown. New figures reveal that large amounts of greenhouse gases are being emitted into the atmosphere, not just during the warm summer months, but also during the colder autumn months. … > read full article

Climate Change Models Use Unrealistic Data

Tuesday, November 25th, 2008

Global Warming Predictions Are Overestimated, Suggests Study On Black Carbon
ScienceDaily (2008-11-25) — A detailed analysis of black carbon — the residue of burned organic matter — in computer climate models suggests that those models may be overestimating global warming predictions. … Climate models try to incorporate these increases of carbon dioxide from soils as the planet warms, but results vary greatly when realistic estimates of black carbon in soils are included in the predictions, the study found. … By entering realistic estimates of stocks of black carbon…the researchers found that carbon dioxide emissions from soils were reduced by about 20 percent over 100 years…The findings are significant because soils are by far the world’s largest source of carbon dioxide, producing 10 times more carbon dioxide each year than all the carbon dioxide emissions from human activities combined. read full article

The error in the figures previously plugged into the computer models for soil-produced carbon dioxide alone were 200% greater than all human-produced CO2 combined, yet we are asked to believe that people are responsible for global warming. Sure they are. Since black carbon releases CO2 much more slowly than decaying vegetation, maybe we should just stop putting out wild fires.

I wonder what other climate model numbers are just bad guesses only remotely related to reality.

Solve Global Whatever: Live Moderately

Monday, November 17th, 2008

I have never trusted doomsayers. They have a very long history of being wrong. Not only have they been wrong, but they frequently lie, exagerate, and commit outright fraud in order to push their agenda. This op-ed from the UK highlights a good example:

GISS’s computerised temperature maps seemed to show readings across a large part of Russia had been up to 10 degrees higher than normal. But when expert readers of the two leading warming-sceptic blogs, Watts Up With That and Climate Audit, began detailed analysis of the GISS data they made an astonishing discovery. The reason for the freak figures was that scores of temperature records from Russia and elsewhere were not based on October readings at all. Figures from the previous month had simply been carried over and repeated two months running.

The EPA tells us that hydraulic fracturing to extract natural gas doesn’t harm ground water, except for the leukemia, aplastic anemia, and exploding houses and wells. And don’t bother testing your wells because we proooomise that it’s safe! Many scientists sincerely believe that the world is getting warmer, and maybe it is. But when they or their allies produce “studies” like these, how are we to believe anything they say?

Jimmy, one of the commenters on the above op-ed summed up some of my thoughts pretty well:

I LOVE that set of graphs that show how much warmer its been getting, Its a nice set, one shows CO2 levels, another shows temp. But one is missing….

If you overlay the solar output graph, over the other two, guess what, it lines up perfectly. So if you truely want to affect global warming, then start regulating the Sun. Thats where 50% of it comes from. The other 50% came from Margerate Thatchers political party to justify nuclear power in England. Learn your history people. In the 1970s it was global COOLING that was the big scare (and yet we have been on an upward trend since …when again? 1800s?) And yet in the 1970s we were still to primitive to see that. We could go to the moon, but we couldnt read the outside temp. Its silly. Use common sense. You cant change solar output, you simply cant. And its always a good idea to take care of the enviroment. But save your fear tactics for when you need another war, or a couple of sky scrapers leveled, but keep it out of the scientific world.
Posted by jimmy on November 17, 2008 2:05 PM [emphasis added]

I’d rather they just keep their fear tactics to themselves all of the time, but “Use common sense” is still great advice. There is no reason to resort to lies and panic-mongering. The truth is bad enough. If we held people (Corporations are just people!) accountable for the damage they cause, and if we all tried to live more moderately and by the golden rule (which is partly expressed in the environmental maxim, “Leave every place better than you found it”), we would have such a healthier world!

Update: Don Boudreaux has some good thoughts along the same lines too.