Imagine this scenario: An earthquake strikes, collapsing the ends of a crowded bridge. People are stranded on the bridge’s interior, the gap to land being too big to jump. Emergency crews dispatch, but discover upon arrival that any sort of human intervention borders on fatal. Instead, the crews send out an array of insect-like robots. The robots coalesce, forming a platform where the gap once was. The trapped people cross safely to land.
Over the last few years, Mark Jacobson, a Stanford professor of civil and environmental engineering, and his colleague, Mark Delucchi of the Univ. of California, Berkeley, have produced a series of plans, based on huge amounts of data churned through computer models, showing how each state in America could shift from fossil fuel to entirely renewable energy.
A computer model of tuberculosis has shown that approved treatments prescribing antibiotic doses once or twice a week are more likely to lead to drug resistant strains than are daily antibiotic regimens. The finding, from a Univ. of Michigan study, could help inform the treatment of the roughly 10 million people worldwide who fall ill with tuberculosis each year.
If dark matter were visible, the Earth would be in need of a haircut. A researcher from NASA’s Jet Propulsion Laboratory (JPL) published a new study in the Astrophysical Journal proposing the existence of long filaments of dark matter, or hairs, near planetary bodies.
Rice Univ. scientists using an efficient metal-free process have synthesized dozens of small-molecule catalysts, tools that promise to speed the making of novel chemicals, including drugs. The lab of synthetic chemist László Kürti made elusive chiral biaryl compounds in a single-flask process that does not require the use of transition metals.
The most widely used technology for producing x-rays has remained essentially the same for more than a century. But based on a new analysis by researchers at Massachusetts Institute of Technology, that might potentially change in the next few years.
Supercomputing simulations at Oak Ridge National Laboratory could change how researchers understand the internal motions of proteins that play functional, structural and regulatory roles in all living organisms.
Researchers at Duke and Stanford Univs. have devised a way to watch the details of neurons at work, pretty much in real time. Every second of every day, the 100 billion neurons in your brain are capable of firing off a burst of electricity called an action potential up to 100 times per second.
Following criticism from the chairman of the House of Representative’s Committee on Science, Space, and Technology regarding a global warming study published in Science in June, a spokeswoman from the publication recently said the journal did not rush to publish the National Oceanic and Atmospheric Administration (NOAA) study.
The garden rose, or Rosa floribunda, has ingrained itself into public consciousness as the symbol for love. But in the science world, the rose is now the first plant to marry the electronic and organic within its body. Researchers from Linköping Univ.’s Laboratory of Organic Electronics used the rose’s vascular system to manufacture analog and digital organic electronic circuits and devices.
The death throes of a moon may signal the birth of something else. Remember Phobos? The Martian moon being ripped apart by tidal forces. Well, it turns out that 20 to 40 million years from now, the disintegrating moon may add a new feature to Mars’ aesthetic: a ring system.
What's true for double-blade razors is also true for solar cells: two work steps are more thorough than one. Stacking two solar cells one on top of the other, where top cell is semi-transparent, which efficiently converts large energy photons into electricity, while the bottom cell converts the remaining or transmitted low energy photons in an optimum manner. This allows a larger portion of the light energy to be converted to electricity.
It was an accidental discovery. In 1991, hikers stumbled upon a mummified corpse in the Ötzal Alps, which straddles the border between Italy and Austria. Naturally preserved by a combination of glacial meltwater and cold weather, Ötzi, the Tyrolean Iceman, boasted 61 tattoo markings across his weathered body.
Miniaturization is the magic word when it comes to nanomagnetic devices intended for use in new types of electronic components. Scientists have proposed the use of ion beams for their fabrication. An ultra-fine beam consisting of around 10 neon ions suffices to bring several hundred atoms of an iron-aluminum alloy into disarray and thereby generate a nanomagnet embedded directly in the material.
A new system that uses a wireless implant has been shown to record for the first time how brain tissue deforms when subjected to the kind of shock that causes blast-induced trauma commonly seen in combat veterans.