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Nature Inspires Useful Products

November 16, 2007

Some day soon you may be able to extract water out of thin air, decorate your walls with detachable wallpaper, read street signs clearly in fog, and employ reusable tape underwater. These are some of the innovations coming from biomimetics – science inspired by nature’s designs. Venus flytrap: Alex Crosby at University of Massachusetts was […]

Amazing Facts

Photo: Earthrise 2007

November 15, 2007

The Japanese Kaguya spacecraft has taken a series of “Earthrise” photos from lunar orbit, including this sequence. The complete set of new hi-resolution photos is available at Japanese Aerospace Exploration Agency. (Due to the orbital path of the spacecraft, Antarctica is at the top.) “Earth-rise is a phenomenon seen only from satellites that […]

Amazing Facts

More Cell Codes and Authentication Mechanisms

November 13, 2007

Here are more “cool cell tricks” that ensure a smoothly-functioning system inside the cell that can adapt to changes while protecting assets. Ribosome code: Why don’t all ribosomes look alike? Perhaps they know a secret code. Another possible coding mechanism has been found in ribosomes, those important organelles in the cytoplasm that translate messenger RNA […]

Dumb Ideas

Monkey See, Monkey Rationalize

November 10, 2007

It’s a quirk of English that rational and rationalize have opposite meanings. Be that as it may, the latter may have evolved into to the former, according to a story in the New York Times. A monkey study using children as control subjects seems to indicate that Capuchin monkeys, like us, occasionally rationalize bad choices. […]

Amazing Facts

Winged Migration Grows Up

November 5, 2007

Scientists used to rely on metal bands on birds’ legs to find out how they got from here to there. Now, they can glue tiny radio transmitters to their shoulders and follow them in real time. What happened when Princeton scientists hijacked 30 white-crowned sparrows and took them from Seattle to New Jersey? Age has […]

Amazing Facts

Developing Ear May Have Tuning Fork

November 3, 2007

What tunes up an embryo’s ears before it hears its first sound? A new study suggests that support cells in the cochlea, long thought to be inert, have a role in tuning up the hair cells during development. Experiments by Dr. Dwight Bergles and a team at Johns Hopkins suggest that cells in a tissue […]

Cosmology

Myths from Hell

November 1, 2007

Many speak of God’s green earth and rejoice in its beauty, but James Trefil tells us it was born from hell. In his article in Astronomy (Dec 2007), entitled, “Earth’s Fiery Start” he spoke with eyewitness confidence: Earth hasn’t always been a green and pleasant place. In fact, our planet’s infancy was a violent, chaotic […]

Dumb Ideas

Crystal Power Is Not Evolution

October 30, 2007

What would Max Planck think? The Institute named after him put out a press release, “Evolution in the Nanoworld,” that claims that synthetic molecules can organize themselves by an evolutionary principle of selection: The automatic molecular assembly and selection steps exhibited by the molecules, which start as random mixtures, demonstrates a fundamental step in the […]

Dumb Ideas

Machiavellian Monkeys Made Us Compassionate

October 28, 2007

Love, loyalty, patriotism – all the qualities that imbue a romantic novel with soul – came from Rhesus monkeys acting badly. This is the belief of Dario Maestripieri, a primatologist and Associate Professor in Comparative Human Development and Evolutionary Biology at the University of Chicago, according to an article in Science Daily. Dr. […]

Amazing Facts

Fall Colors Have a Function

October 27, 2007

Deciduous trees have an investment decision to make when fall chill sets in: do they send their sunlight-produced nutrients to the roots early, and so risk damage to the leaves from autumn sunlight, or should they spend more energy creating a sunscreen that allows them to produce nutrients longer, and thereby increase food storage in […]

Amazing Facts

Cilia Are Antennas for Human Senses and Development

October 26, 2007

The little hair-like projections on cells, called cilia, have more functions than previously believed. A press release from Johns Hopkins University said that researchers found cilia are important for the sense of touch – particularly, for heat sensation. In fact, cilia are implicated in at least three of the five traditional senses. The […]

Amazing Facts

Mega-Dinosaur Found in Argentina

October 18, 2007

Check out this dinosaur: 105 feet long, 43 feet tall, having a neck 56 feet long. The spinal column alone probably weighed 9 tons. That’s Futalognkosaurus dukei, one of the largest dinosaurs ever found, recently reported from Argentina (see BBC News and PhysOrg). A single vertebral bone was nearly 3 feet long. National Geographic called […]

Solar System

New Horizons at Jupiter

October 15, 2007

New Horizons, a spaceship bound for Pluto, took a good look at the Jupiter system on Feb 28, 2007.

Dumb Ideas

Walking Upright Was a Birth Defect

October 14, 2007

What’s so big about walking upright? A single birth defect in a human ancestor 21 million years ago could have made it all possible, according to Dr. Aaron Filler (Cedars Sinai Medical Center), a specialist in the spine. According to EurekAlert, he proposes that in the “hominiform hominoid” Morotopithecus, a sibling was born […]

Amazing Facts

Inner Ear More Complex than Thought

October 13, 2007

Another level of complexity has been added to the mystery of hearing. Scientists at Massachusetts Institute of Technology (MIT) found that another membrane in the cochlea of the inner ear, once thought to be passive, is actively involved in transmitting sound waves to the hair cell receptors. Their work was published in PNAS.1 […]

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