Young stars ejecting plasma could give us clues into the Sun’s past Kyoto, Japan — Down here on Earth we don’t usually notice, but the Sun is frequently ejecting huge masses of plasma into space. These are called coronal mass ejections (CMEs). They often occur together with sudden brightenings called flares, and sometimes extend far enough to disturb Earth’s magnetosphere, generating space weather phenomena including auroras or geomagnetic storms, and even damaging power grids on occasion. Scientists believe that when…
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…
The french-german institution for security and defence (ISL) and Saarland University joined their efforts and developed a method to strengthen the structur 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,…
For example, “satellites experience the disruptive effects of energetic charged particles and electrical charging across the satellite structure during various…
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 invention presented here consists of a cylindrical, hollow chocolate scroll filled with sugar. Served on the side with a cup of coffee or tea, the scroll…
Up to now, explosives based on nitroaromatic compounds have been detected as anions by means of ion-mobility spectroscopy (IMS). The present invention not only…
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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