Read more:

  1. B. Da, H. Shinotsuka, H. Yoshikawa, Z. J. Ding, S. Tanuma. Extended Mermin Method for Calculating the Electron Inelastic Mean Free PathPhysical Review Letters, 2014; 113 (6) DOI: 10.1103/PhysRevLett.113.063201
kim-jong-chill

kim-jong-chill:

ALICE (A Large Ion Collider Experiment) Detector, CERN

ALICE, one of seven total detector experiments at the Large Hadron Collider at CERN, aims to provide a deeper understanding of strongly interacting matter at extreme energy densities. ALICE is also optimized to study heavy ion (lead-lead nuclei) collisions at a center of mass energy of ~2.8 TeV. The resulting energy density and temperature are expected to be high enough to produce a quark-gluon plasma — its existence and properties are key issues in quantum chromodynamics. Recreating this primordial form of matter and understanding how it evolves is expected to shed much-needed light on questions concerning how matter is organized, the mechanism which confines quarks and gluons and the nature of strong interactions and how they ultimately result in generating the bulk of the mass of ordinary matter.

laboratoryequipment
laboratoryequipment:

Nanotech Cools Electrons Without External SourcesA team of researchers has discovered a way to cool electrons to -228 C without external means and at room temperature, an advancement that could enable electronic devices to function with very little energy. The process involves passing electrons through a quantum well to cool them and keep them from heating. The team details their research in a paper in Nature Communications.“We are the first to effectively cool electrons at room temperature. Researchers have done electron cooling before, but only when the entire device is immersed into an extremely cold cooling bath,” said Seong Jin Koh, an associate professor at UT Arlington in the Materials Science & Engineering Department, who has led the research. “Obtaining cold electrons at room temperature has enormous technical benefits. For example, the requirement of using liquid helium or liquid nitrogen for cooling electrons in various electron systems can be lifted.”Read more: http://www.laboratoryequipment.com/news/2014/09/nanotech-cools-electrons-without-external-sources

laboratoryequipment:

Nanotech Cools Electrons Without External Sources

A team of researchers has discovered a way to cool electrons to -228 C without external means and at room temperature, an advancement that could enable electronic devices to function with very little energy. The process involves passing electrons through a quantum well to cool them and keep them from heating. The team details their research in a paper in Nature Communications.

“We are the first to effectively cool electrons at room temperature. Researchers have done electron cooling before, but only when the entire device is immersed into an extremely cold cooling bath,” said Seong Jin Koh, an associate professor at UT Arlington in the Materials Science & Engineering Department, who has led the research. “Obtaining cold electrons at room temperature has enormous technical benefits. For example, the requirement of using liquid helium or liquid nitrogen for cooling electrons in various electron systems can be lifted.”

Read more: http://www.laboratoryequipment.com/news/2014/09/nanotech-cools-electrons-without-external-sources

mathematica
Pure mathematics consists entirely of such asseverations as that, if such and such a proposition is true of anything, then such and such another proposition is true of that thing… It’s essential not to discuss whether the proposition is really true, and not to mention what the anything is of which it is supposed to be true… If our hypothesis is about anything and not about some one or more particular things, then our deductions constitute mathematics. Thus mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.
Bertrand Russell, quoted by J. A. Paulos in Beyond Numeracy (1992)
scienceisbeauty

scienceisbeauty:

image

It’s very easy, just rehearse these phrases… and try use them with confidence in every conversation.

  • Use “canonical” when you mean “usual” or “standard.” As in, “the canonical example of talking like a physicist is to use the word ‘canonical’.
  • Use “orthogonal” to refer to things that…
literallytech

literallytech:

First Look at Apple Watch

Best comment read so far: “I’m keeping my rolex” 

huffingtonpost
huffingtonpost:

Apple Officially Announces iPhone 6
Apple unveiled the latest version of its flagship smartphone on Tuesday, officially branding the device the iPhone 6.
For more on the new phone’s features go here. 

Exciting day, exciting news. Honestly? I did expect much more from the presentation today.. 
What do you think?

huffingtonpost:

Apple Officially Announces iPhone 6

Apple unveiled the latest version of its flagship smartphone on Tuesday, officially branding the device the iPhone 6.

For more on the new phone’s features go here. 

Exciting day, exciting news. Honestly? I did expect much more from the presentation today.. 

What do you think?

snugglebugparisa

snugglebugparisa:

What’s interesting is that this structure is much bigger than anyone had realized. Astronomers had long grouped the Milky Way, Andromeda, and other galaxies around us in the Virgo Supercluster, which contained some 100 galaxy groups.

But as Tully and his colleagues found, and as the map above shows, this Virgo Supercluster is just part of a much, much bigger supercluster — Laniakea. (The name, aptly enough, means “immeasurable heavens” in Hawaiian.)

Read the full article here!