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Going Big

By Guest PostJuly 23, 2012Scienceamanda wu, behavior of materials, carbon nanotube, China, chou research group, composite applications, fiber, force, go big, macroscale, nanoscale, sensor, strain, strain rate, tsinghua university, tsu wei chou, university of delaware, van der waals, weibang lu

UD researchers report progress in development of carbon nanotube-based continuous fibers

The Chou research group in the University of Delaware’s College of Engineering recently reported on advances in carbon nanotube-based continuous fibers with invited articles in Advanced Materials and Materials Today, two high impact scientific journals.

According to Tsu-Wei Chou, Pierre S. du Pont Chair of Engineering, who co-authored the articles with colleagues Weibang Lu and Amanda Wu, there has been a concerted scientific effort over the last decade to “go big” – to translate the superb physical and mechanical properties of nanoscale carbon nanotubes to the macroscale. (more…)

6 Daily Routine Changes to Help You Lose Weight

By Guest PostJuly 23, 2012Healthdaily routine, skip the sodas, weight loss

Weight loss isn’t easy, if it was everyone would be at their healthy goal weight but there is a reason why many countries are finding themselves topping the weight charts. A lot of people don’t have the time and the money to take care of themselves. So here are 6 small changes you can make to your daily routine that will help you drop a few pounds: (more…)

Researchers Develop New Amp to Study the Universe

By Guest PostJuly 23, 2012Scienceamplifier, black holes, byeong ho eom, caltech, electric current, electrical signal, jonas zmuidzinas, NASA, peter day, quantum computer, quantum world, radio wave, wavelengths, xrays, zero resistance

Researchers at NASA’s Jet Propulsion Laboratory and the California Institute of Technology, both in Pasadena, have developed a new type of amplifier for boosting electrical signals. The device can be used for everything from studying stars, galaxies and black holes to exploring the quantum world and developing quantum computers.

“This amplifier will redefine what it is possible to measure,” said Jonas Zmuidzinas, chief technologist at JPL, who is Caltech’s Merle Kingsley Professor of Physics and a member of the research team. (more…)

With Drug-Loaded Nanogel, Yale Researchers Attack Cancerous Tumors

By Guest PostJuly 22, 2012Health, Sciencebiodegradable nanoparticle, cancer therapy, cancerous tumor, cytokine, eric stern, immune system, immunotherapeutic method, jason park, metastatic melanomas, michael look, nanogel, natural defense, richard a flavell, skin cancer, soluble protein, stephen h wrzesinski, tarek m fahmy, therapeutic agent, tumor vasculature, yale university

Yale University scientists have developed a new mechanism for attacking cancerous tumors that intensifies the body’s immune response while simultaneously weakening the tumor’s ability to resist it.

“We believe this is a paradigm-changing immunotherapeutic method for cancer therapy,” said Tarek M. Fahmy, a bioengineer at Yale and the project’s principal investigator. “In essence, it’s a one-two punch strategy that seems to work well for melanoma and may work even better with other cancers.” (more…)

Ancient Alteration of Seawater Chemistry Linked With Past Climate Change

By Guest PostJuly 22, 2012Environmentadina paytan, alteration, antarctic ice sheet, candace major, cenozoic era, climate and evolution, climate change, collision, dissolution, eocene epoch, eurasia, greenhouse periods, gypsum, gypsum belt, gypsum deposit, hydrated calcium sulfate, icehouse climate, India, iodp, iran, joides resolution, marine, million years, mineral, national science foundation, ocean drillship, oman, Pakistan, phosphorus cycling, plate tectonics, santa cruz, seawater chemistry, sulfate aerosols, sulfate concentration, sulfur composition, ulrich wortmann, university of california, university of toronto, zagros mountains

Dissolution or creation of huge gypsum deposits changed sulfate content of the oceans

Scientists have discovered a potential cause of Earth’s “icehouse climate” cooling trend of the past 45 million years. It has everything to do with the chemistry of the world’s oceans.

“Seawater chemistry is characterized by long phases of stability, which are interrupted by short intervals of rapid change,” says geoscientist Ulrich Wortmann of the University of Toronto, lead author of a paper reporting the results and published this week in the journal Science.

“We’ve established a new framework that helps us better interpret evolutionary trends and climate change over long periods of time. The study focuses on the past 130 million years, but similar interactions have likely occurred through the past 500 million years.” (more…)

Science Xplained: How Physics Serves Tennis

By Guest PostJuly 21, 2012Sciencephysics serves tennis, science xplained, tennis racket technology, topspin

A little physics goes a long way on the tennis court. In this edition of Science Xplained, Dr. Ainissa Ramirez discusses tennis racket technology–from wood and cow intestines to carbon fiber and nylon — and the principles behind topspin. (more…)

Meet a Face Behind the MIRI

By Guest PostJuly 21, 2012Scienceall sky survey, asteroid, caltech, cosmos, galaxy formation, hawaii, infrared bright galaxies, infrared telescope, james webb, jpl, mauna kea, mid infrared instrument, mike ressler, miri, NASA, palomar, san diego, space telescope, star formation, wise

This summer welcomed the delivery of the James Webb Space Telescope’s first flight instrument, the Mid-Infrared Instrument (MIRI). The instrument will peer out into the farthest depths of the cosmos and capture light showcasing star and galaxy formation.

MIRI’s design, assembly and journey were made possible because of a collaboration between a European consortium of institutes that developed the instrument in a partnership with NASA’s Jet Propulsion Laboratory, Pasadena, Calif., working with the European Space Agency, University of Arizona and NASA. (more…)

Greenland Glacier Loses Ice

By Guest PostJuly 21, 2012Environmentair temperature, andreas muenchow, aqua satellite, Arctic, coast guard ship, greenland glacier, greenland ice sheet, henry larsen, ice island, ice shelf, icy seas blog, labrador, lancaster sound, manhattan, nares strait, NASA, ocean temperature, petermann fjord, petermann glacier, terra, ward hunt

Greenland glacier loses ice island twice the size of Manhattan

An ice island twice the size of Manhattan has broken off from Greenland’s Petermann Glacier, according to researchers at the University of Delaware and the Canadian Ice Service. The Petermann Glacier is one of the two largest glaciers left in Greenland connecting the great Greenland ice sheet with the ocean via a floating ice shelf.

Andreas Muenchow, associate professor of physical ocean science and engineering in UD’s College of Earth, Ocean, and Environment, reports the calving on July 16, 2012, in his “Icy Seas” blog. Muenchow credits Trudy Wohleben of the Canadian Ice Service for first noticing the fracture. (more…)

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