“The disks contain small comet- or asteroid-like bodies that may grow to form planets,” Debes said. “These small bodies often collide, which produces a lot of…
“Current methods for moving individual cells or tiny beads include such devices as optical tweezers, which require a lot of energy and could damage or even…
Smouldering several thousand light-years away in the constellation of Sagittarius (the Archer), the Trifid Nebula presents a compelling portrait of the early…
Tropical Storm Hilda is hanging on to tropical storm force winds, and continues to track south of the Hawaiian Islands. NASA's Tropical Rainfall Measuring…
When a cloud of interstellar gas collapses to form stars, the stars range from massive to minute.Since the 1950s astronomers have thought that in a family of…
These lab-on-a-chip devices, also known as microfluidic arrays, are commonly used to sort tiny samples by size, shape or composition, but the minuscule forces…
The project, called the Constrained Vapor Bubble (CVB), could yield important fundamental insights into the nature of heat and mass transfer operations that…
Compared with our everyday experience, the quantum world – the world of the very small, of atoms and elementary particles – is incredibly bizarre. For example,…
In a paper published in the August 20 issue of Physical Review Letters, the flagship journal of the American Physical Society, Dartmouth researchers propose a…
Does an exciting but controversial new model of quantum gravity reproduce Einstein's theory of general relativity? Scientists at Texas A&M University in the US…
The electric and magnetic properties of solids are impossible to calculate exactly: The complex interactions of the many electrons which underly these…
Stars more than eight times the mass of our Sun eventually collapse under their own weight, and may explode into spectacular supernovae. The temperatures and…
The findings are the first compelling evidence challenging the model under certain conditions, and could necessitate entirely new theoretical approaches to…
For decades there has been interest in phonon lasers that emit quanta of vibrational energy – so called phonons – instead of light. In solids, because of the…
And there's a lot of raw power in those racks. Cystorm, a Sun Microsystems machine, boasts a peak performance of 28.16 trillion calculations per second. That's…
Applications for the arrays, which can be printed onto flat or flexible substrates ranging from glass to plastic and rubber, include general illumination,…
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