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Animals Have Biological GPS
April 30, 2012
Global Positioning System (GPS): that's a function. Maintaining a suite of satellites is one method for achieving the function. But there are other ways to figure out where in the world you are, and two very different animals show the way – naturally – using Earth's global magnetic field.
Why You Are Waterproof
April 29, 2012
Can you imagine inflating like a water balloon every time you jumped in a swimming pool? Or what if water leaked out of your skin every time you drank a glass of water? Your skin forms an impermeable barrier to water, a new study found, because of a unique way certain molecules are arranged.
King David Ruled Cities, Not Shepherds
April 24, 2012
Ongoing archaeological finds from Khirbet Qeiyafa in ancient Judah now show conclusively that the site had fortified walls with gates, administrative buildings, bronze and iron objects, and artifacts suggesting extensive trade with foreign powers. These discoveries cast doubt on the "minimalist" chronology of some liberal scholars who claim that King David, even if he existed, was a tribal chief over pastoralists.
From Wonders of Nature to Wonders of Technology
April 22, 2012
Living things have solved physics problems like design engineers. Inventors are just now catching on to their tricks in ways that could improve our technology, weaning us off our crude, polluting past and ushering in advanced technology that is not only greener but more effective. The latest stars are two insects and a bacterium.
News for the Birds
January 24, 2012
Our amazing feathered friends range from tiny hummingbirds to fast-running ostriches, from penguins to pigeons. In both living and fossil forms, they provide endless opportunities for study and fascination. Here are a few recent examples of news for the birds, in both good and bad connotations of the phrase.
Oozing Life Up Against All Odds
January 20, 2012
The origin of life clearly requires a major leap in complexity, but not just any complexity. A conglomerate rock is complex, but not alive. Life has functional complexity – the ability to selectively take in materials to grow, move and reproduce. Life also requires growth, but not just any growth. Fire grows and reproduces, but is not alive, whereas a living cell grows and reproduces according to internal programmed instructions. Evolutionists think the origin of life by natural causes is a tractable problem that will eventually be solved. Let’s see a couple of examples of how their work is coming along.
Selling Darwinism as a Cinch
January 16, 2012
The origin of biological complexity is a major concern for believers in unguided, random processes of nature. Some recent news articles, though, make it sound easy – no problem at all. But do their theories and experiments reflect the real world?
SETI Finds Intelligent Humans
January 15, 2012
The Search for Extra-Terrestrial Intelligence (SETI) is 50 years old this year. SETI’s latest scientific discovery was the detection of a human-made satellite in Earth orbit. In a sense, this counts as a success: the detection of a signal of intelligent origin from an extra-terrestrial source (beyond terra firma). The false alarm helped calibrate the instrumentation, but did little to garner support for the effort to find aliens. The SETI Institute was all SETI-ready to party hardy at the 50th anniversary of Frank Drake’s first search, but instead, found itself struggling to keep its doors open after a severe shortfall of private funds, highlighting questions about the scientific status of the long-shot project.
Science Grab Bag
January 13, 2012
Here's a random assortment of things floating around in the science news media – some fascinating, some informative, some disgusting. We’ll let the readers decide which is which. Since it’s Friday the 13th, a day to enjoy like any other day, we’ll give you a baker’s dozen to sample.
Tilt-A-World: Another Constraint on Habitability
January 12, 2012
Did you ever ride a Tilt-A-Whirl, one of those cheap carnival rides that makes you dizzy and sick? Our planet would be like that if its inclination were out of control. Without tilt stability, a new study reveals, we wouldn't be sick, we'd be dead, or never alive in the first place. It's not enough to be in the Habitable Zone. Would-be inhabited planets need to avoid a new problem, called “tilt erosion.”
Cosmologists Forced to “In the Beginning”
January 11, 2012
The late astronomer Robert Jastrow detailed in his 1978 book God and the Astronomers how cosmologists were repulsed by the idea the universe had a beginning. He found it quizzical that they would have such an emotional reaction. They all realized that a beginning out of nothing was implausible without a Creator. Since then, various models allowing for an eternal universe brought secular cosmologists relief from their emotional pains. It now appears that relief was premature.
What Do Scientists Know About Prehistory?
January 9, 2012
Evolutionary biologists and geologists speak of events happening millions or billions of years ago as concrete facts. They are not observational facts, though; they are inferences from indirect evidence. Indirect evidence can often lead to different conclusions; in fact, some philosophers like Duhem and Quine argue for “under-determination of theory by data,” meaning that data can never converge to support just one theory. Some can demonstrate logically that there are an infinite number of theories that can explain a set of data. Evolutionary scientists counter that there are only one or a few that are reasonable (implying that theirs is among the limited set of reasonable ones). Recent discoveries that threaten to overturn past reasonable theories, though, cast doubt on their confidence.