Sciences & Technology
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Veille sur les évolutions des sciences et des technologies
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Hardened steels for more efficient engines

Hardened steels for more efficient engines | Sciences & Technology | Scoop.it
Scientists of Karlsruhe Institute of Technology (KIT) are working on the development of a new process for hardening steel: With the help of methylamine, they enrich low-alloy steels with carbon and nitrogen.
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25 Interesting STEM Experts Worth Following On Twitter

25 Interesting STEM Experts Worth Following On Twitter | Sciences & Technology | Scoop.it
Whether you’re a science teacher or not, education and the STEM subjects is a hot topic these days. From discussions about comparing test scores in STEM subjects with students around the globe to tracking the number of STEM based jobs and future graduates, there’s certainly a lot to discuss. There’s a lot of information out …
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Orbotix Announces The $99 Sphero 2B, A New Super-Fast, Programmable Robot

Orbotix Announces The $99 Sphero 2B, A New Super-Fast, Programmable Robot | Sciences & Technology | Scoop.it
Sphero, as the name implies, was a robotic sphere. Now Orbotix, the makers of this beloved ball, have decided to elongate the it into a tube (a cylinder,..

Via Gust MEES
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Le MIT invente des cubes robotiques et modulaires

Le MIT invente des cubes robotiques et modulaires | Sciences & Technology | Scoop.it
Imaginez une petite colonie de robots cubiques capables de sauter et de monter sur eux-mêmes pour changer de forme en fonction de l’environnement. Telle est la dernière invention des chercheurs du MIT.
Terheck's insight:

A stunning video of these cubes on Youtube : http://youtu.be/mOqjFa4RskA

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NASA’s tiny 460GHz vacuum transistor that could one day replace silicon FETs | Nano Technology

NASA’s tiny 460GHz vacuum transistor that could one day replace silicon FETs | Nano Technology | Sciences & Technology | Scoop.it
Way back in the salad days of digital computing (the 1940s and '50s), computers were made of vacuum tubes -- big, hot, clunky devices that, when you got right down to it, were essentially glorified light bulbs. This is why early computers like the ENIAC weighed more than 27 tons and consumed more power than a small town. Later, obviously, vacuum tubes would be replaced by probably the greatest invention of all time -- the solid-state transistor -- which would allow for the creation of smaller, faster, cheaper, and more reliable computers. Fast forward to 2014, though, and the humble CMOS field-effect transistor (FET) is starting to show its age. We've pretty much hit the limit on shrinking silicon transistors any further, and they can't operate at speeds much faster than a few gigahertz. Which is why NASA's Ames Research Center is going back to the future with its new vacuum transistor -- a nanometer-scale vacuum tube that, in early testing, has reached speeds of up to 460GHz.

Via Gust MEES
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Diane Johnson's curator insight, June 25, 2014 12:13 PM

Great engineering connections!

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10 Innovative Ways to Bring STEM to Schools

10 Innovative Ways to Bring STEM to Schools | Sciences & Technology | Scoop.it
As schools look for innovative ways to bring in STEM learning, here's a possible road map for how to galvanize a school community.

Via Ileane Smith
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La France a, plus que jamais, besoin de scientifiques et techniciens

TECHNO - Connaître les risques et permettre un débat citoyen et public sur les enjeux des sciences et techniques est une bonne chose. Il n'y a pas pire obscurantiste que celui qui voudrait imposer le fait scientifique par un acte d'autorité.
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PHOTOS: All 16 Nobel-Winning Women Scientists

PHOTOS: All 16 Nobel-Winning Women Scientists | Sciences & Technology | Scoop.it

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"Women make up a bit more than half of the world’s population, yet even in the most developed countries, men hold the lion's share of jobs in STEM (science, technology, engineering, and mathematics) fields. What's more, men take home most of the prestigious scientific awards. That includes the Nobel Prizes, widely considered the ultimate mark of scientific achievement.

 

Of the 357 people awarded a Nobel in the science categories — Physics, Chemistry, Physiology or Medicine, and Economic Sciences — only 16 have been women (see slideshow below).

 

What accounts for this discrepancy?..."

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