Category Archives: Science

Home Experiments: Quantum Erasing

Do your own experiment on quantum erasing – Quantum Erasing in the Home (for instructions). From the accompanying article, A Do-It-Yourself Quantum Eraser:

The light patterns that you will see if you conduct the experiment successfully can be accounted for by considering the light to be a classical wave, with no quantum mechanics involved. So in that respect the experiment is a cheat and falls short of fully demonstrating the quantum nature of the effect.

Nevertheless, the individual photons that make up the light wave are indeed doing the full quantum dance with all its weirdness intact, although you could only truly prove that by sending the photons through the apparatus and detecting them one at a time. Such a procedure, unfortunately, remains beyond the average home experimenter.

Hacking Your Body’s Bacteria

Hacking Your Body’s Bacteria for Better Health by Brandon Keim

In sheer numbers, bacterial cells in the body outnumber our own by a factor of 10, with 50 trillion bacteria living in the digestive system alone, where they’ve remained largely unstudied until the last decade. As scientists learn more about them, they’re beginning to chart the complex symbiosis between the tiny bugs and our health.

“The microbes that live in the human body are quite ancient,” says NYU Medical Center microbiologist Dr. Martin Blaser, a pioneer in gut microbe research. “They’ve been selected (through evolution) because they help us.” And it now appears that our daily antibacterial regimens are disrupting a balance that once protected humans from health problems, especially allergies and malfunctioning immune responses.

Funding for Science and Engineering Researchers

To authorize programs for support of the early career development of science and engineering researchers, and for support of graduate fellowships, and for other purposes. passed the house on a vote of 397 – 20 and was forwarded to the senate. From the majority whips talking points:

supports outstanding researchers in the early stages of their careers through grants at the National Science Foundation (NSF)
and the Department of Energy of $80,000 per year for 5 years
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enlarges an existing program at NSF supporting graduate students in multidisciplinary fields of national importance

This bill started with the same name as the Sowing the Seeds Through Science and Engineering Research Act – though seems to be missing much on fellowships now.

When Fair Use Isn’t Fair

In her post, Antioxidants in Berries Increased by Ethanol (but Are Daiquiris Healthy?), Shelley Batts, commenting on a journal article which was written based on publicly funded research, used “ONE panel of ONE figure, and a chart, from over 10+ figures in the paper.” The for profit journal sent a threat of legal action. This is exactly the type of behavior that leads many (including me) to push for open access publication of publicly funded research.

When Fair Use Isn’t Fair:

Isn’t the point of publishing data to disseminate it, rather that lob threats at grad students who happen to be excited about it?

It should be but many of the for profit publishers seem to have mistaken their mission to promote science (which would then generate funds to sustain their organization) for a mission to make money with no concern for science.

One comment on that post includes a link to the Standford Fair Use Project which looks like a great resource. Also see: Intellectual Property Rights and Innovation

Fruit Better Than Vitamins

Fruit proves better than vitamin C alone. Tests show that it isn’t just the vitamin that protects the body.

Other nutrition researchers have suggested that sugars in juice interact with vitamin C to generate the antioxidant effect2. But Guarnieri suspects that the phytochemicals found in oranges (cyanidin-3-glucoside, flavanones and carotenoids) are the substances that need further study. “But how they are interacting is still anyone’s guess,” she adds.

10 Lessons of an MIT Education

Very good, definitely worth reading – 10 Lessons of an MIT Education by Gian-Carlo Rota:

In science and engineering, you can fool very little of the time. Most of the sweeping generalizations one hears about MIT undergraduates are too outrageous to be taken seriously. The claim that MIT students are naive, however, has struck me as being true, at least in a statistical sense.

Last year, for example, one of our mathematics majors, who had accepted a lucrative offer of employment from a Wall Street firm, telephoned to complain that the politics in his office was “like a soap opera.” More than a few MIT graduates are shocked by their first contact with the professional world after graduation. There is a wide gap between the realities of business, medicine, law, or applied enginering, for example, and the universe of scientific objectivity and theoretical constructs that is MIT.

An education in engineering and science is an education in intellectual honesty. Students cannot avoid learning to acknowledge whether or not they have really learned. Once they have taken their first quiz, all MIT undergraduates know dearly they will pay if they fool themselves into believing they know more than is the case.

On campus, they have been accustomed to people being blunt to a fault about their own limitations-or skills-and those of others. Unfortunately, this intellectual honesty is sometimes interpreted as naivete.

Quantum Theory Fails Reality Checks

Reality just got a one-two punch. A new experiment has tried to suss out which of two counterintuitive ingredients is more basic to quantum theory, only to find that they go hand in hand.

Einstein was famously bugged by what are now well-established facts of quantum theory: the randomness of a particle’s choices and the possibility of instantaneous linkages between far-flung light or matter. Experimenters now conclude that Einstein cannot even pick his poison, because allowing for instant links kills any simple notion of reality, too.

$600 Million for Basic Biomedical Research

Howard Hughes Medical Institute (HHMI) will hold a national competition for investigators that will result in an investment of at least $600 million in basic biomedical research. Up to 50 new researchers will be selected by spring 2008. HHMI Announces New Open Competition:

HHMI seeks applications from outstanding scientists studying biomedical problems in a broad array of disciplines, including not only biology and medicine, but related areas of chemistry, physics, engineering and computational biology. This competition is open to early career stage scientists at approximately 200 eligible institutions.
…
HHMI values innovation and encourages its investigators to extend the boundaries of science. By appointing scientists as Hughes investigators — rather than awarding research grants — HHMI is guided by the principle of “people, not projects.” HHMI investigators have the freedom to explore and, if necessary, to change direction in their research. Moreover, they have support to follow their ideas through to fruition — even if that process takes many years.
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This new competition represents the first time that HHMI has opened up a general competition to the direct application process. In the past, faculty members had to be nominated by their institutions for HHMI investigator positions.

More details and apply via: 2008 HHMI Investigator Competition.

2007 National Science Board Public Service Award

Chemist, Educator, Communicator Receives 2007 National Science Board Public Service Award

Bassam Z. Shakhashiri, a chemistry professor who pioneered new ways to encourage public understanding of science through his enthusiastic communications and visually exciting chemical demonstrations, will receive the 2007 National Science Board Public Service Award.
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In 1983, Shakhashiri founded the Institute for Chemical Education at the University of Wisconsin. It has since become a national center for research and development, teaching and dissemination of information on chemistry at all educational levels. In the same year, he opened the first-of-its-kind interactive chemistry exhibit at Chicago’s Museum of Science and Industry, which has remained permanently on display there.

Science if Fun with University of Wisconsin-Madison Chemistry Professor Bassam Z. Shakhashiri.

PhysicsQuest

PhysicsQuest is a story-based activity that exposes middle school students to the fun and relevance of science. APS provides a free PhysicsQuest kit to registered 6-9th grade physical science classes, home school groups, science clubs, and after-school programs. The kit includes a user’s manual and materials for four physics experiments.

PhysicsQuest aims to teach middle school students physics concepts, but its overarching goal is to give them a positive experience with physics. APS is focusing this program on middle school students because these grades have been identified as the point when many students lose interest in math and science.