Humanity – Page 131

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Eye Sends Information at Ethernet Rates

July 27, 2006

Neuroscientists from Pennsylvania and New Jersey calculated the information rate of the eye. Using guinea pigs (real guinea pigs, not humans as guinea pigs), they came up with a number and interpolated it for humans: In the classic “What the frog’s eye tells the frog’s brain,” Lettvin and colleagues showed that different types of retinal […]

Biomimetics

Honey More Effective than Antibiotics

July 27, 2006

A good old nature remedy is making a comeback: honey for wounds. An article on EurekAlert about research at the University of Bonn states that honey is more effective than antibiotics at healing cuts and wounds. Apparently the ancient Egyptians knew about its healing power. Honey rejects dead tissue faster, repels bacteria, promotes more rapid […]

Amazing Facts

Eye Can See Clearly Now

July 17, 2006

The cornea has no blood vessels. That’s weird. But it’s a good thing, or we would be looking through a network of threadlike strands all the time. According to EurekAlert, scientists at Scheppens Eye Institute decided to find out how the cornea stays clear. They found that it is heavily stocked with a special protein, […]

Amazing Facts

Why Your Knuckles Pop

July 10, 2006

Science reporter Corey Binns occasionally decorates LiveScience with articles about the human body that are informational as well as amusing. His latest is about cracking knuckles and creaking joints. We have four kinds of joints (pivot, ball-and-socket, sliding and hinge), which he illustrates with diagrams that look like machinery. The pops and creaking noises, he […]

Human Body

Evolving Consciousness Without a Soul

July 7, 2006

A paper tackling the theory of consciousness begins, Any scientific study of consciousness is based on the premise that phenomenal experience is entailed by neuronal activity in the brain. Given this premise, an adequate theory of consciousness must be consistent with physics and with evolutionary principles. Nonphysical or dualistic forces or processes must be excluded, […]

Health

Rip Van Winkle Revives

July 3, 2006

A man in a coma 19 years has regained some brain function, surprising scientists. Terry Wallis is relearning how to count and speak, and thinks Ronald Reagan is still president. The story of his remarkable recovery has been reported widely in the news (see Fox News) and was featured on both News@Nature and Science Now. […]

Early Man

The Evolution of Immaturity

June 28, 2006

[Guest Article] Blame evolution for your teen’s immaturity. The Discovery Channel has published a review of an upcoming paper by Bruce Charlton, professor of biology at the University of Newcastle upon Tyne, England. Charlton is a promoter of Evolutionary Psychology, a developing field of Psychology that attempts to explain all human characteristics in light of […]

Amazing Facts

Reach Out and Touch Some Robot

June 13, 2006

The news media were excited to report an advance in materials science last week that could pave the way for touchy-feely robots (see BBC News, News @ Nature, LiveScience and National Geographic News, for instance). Two scientists produced a thin film with touch resolution comparable to that of a human finger, an order of magnitude […]

Dumb Ideas

Stupid Evolution Quote of the Week: Handy Dandy Modus Operandi

June 2, 2006

Charles G. Gross and Asif A. Ghazanfar win the prize for this gem in Science1 from a book review of The Sensory Hand by Vernon B. Mountcastle (Harvard, 2006): In one of the first systematic attempts to describe the differences between primates and other mammals, Thomas Huxley argued that the former are distinguished by virtue […]

Health

Escape to Reality: Turn Off the Video Games

May 10, 2006

Visitation at national parks has declined significantly, reports University of Illinois at Chicago, correlated with rising use of video games and home entertainment. “My concern is that young people are simply not going outdoors or to natural areas,” said a biology professor at the school, “but are instead playing video games, going on the Internet […]

Health

Doctors Deny Darwin

May 5, 2006

Doctors and medical professionals may comprise the largest block of scientists with qualms about evolution. According to a Finkelstein poll, an average of 60% of doctors, depending on religious demographics, reject the completely unguided Darwinian evolutionary explanation for life. A new organization, Physicians and Surgeons for Scientific Integrity (PSSI), has begun a website Doctors Doubting […]

Human Body

Comparing Preferences for Pain or Gain

May 3, 2006

A group of researchers published in the Journal of Political Economy introduced the idea economic loss and gain incentives are innate, not learned. To demonstrate this concept, the researchers presented capuchin monkeys two opportunities leading to two different outcomes for the monkey: pain or gain. The capuchin monkeys had a tendency to choose the opportunity […]

Human Body

Can We Not Perform Similar Functions?

May 3, 2006

Researchers from King’s College London claim their data evidences the “Human [thyroid] gland probably evolved from gills.”1 According to speculation, gills were internalized as the thyroid gland when marine life evolved into land animals. The possibility for this comes from the similar functions of gills and of the gland: both act as calcium level controls. […]

Health

No Pain, No Gain Explained: Lactic Acid Supercharges Your Engines

April 21, 2006

The old paradigm: lactic acid buildup during exercise is like poison to your muscles, producing stiffness and agony. The new paradigm: lactic acid is your friend, a fuel additive that helps keep your mitochondrial motors in top-notch condition. Read all about it in a press release from UC Berkeley. What are you waiting for? It’s […]

Cell Biology

Misfolded Proteins Cause Cascade of Harmful Effects

March 12, 2006

There are a myriad ways a polypeptide chain could collapse into a shapeless mass.

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