Bettina Alexandra

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For The First Time, A Laser That Shines Pure White

A full spectrum of exciting potential<p>The laser is a versatile tool in the modern technological arsenal. It can provide immense energy to a precise location at a very specific wavelength, but it’s always fallen short in one regard: lasers emit light at a single specific wavelength. Until now.<p>A team …

College & University

AutoCAD LT is not just AutoCAD without 3D!

Many people think that AutoCAD LT is just an AutoCAD without 3D compatibilities. The truth is there are many capabilities are stripped out from …


Google Offers A Free Online Computational Thinking Course for Educators

July 4, 2015<br>Several students confound computational thinking with computer science when, in fact, the two refers to two different concepts. Computer …

Education Technology

Bond Street, a 2-year-old startup that just raised $110 million, is making Wall Street sweat

Like Lending Club, a peer-to-peer lender that went public in 2014 at an $870 million valuation, Bond Street is eating into the business of some major banks by making loans to small businesses.<p>It just pocketed a whopping $110 million investment from Jefferies investment bank and Spark Capital, where …

Wall Street

We now have a spacecraft that is propelled by sunlight alone

A new kind of spacecraft that sails on sunlight has been successfully deployed above Earth. On June 11, the LightSail satellite overcame a series of glitches to unfurl its solar sails, a propulsion system that’s entirely different to traditional rockets, thrusters or even solar panels.<p>The prototype …

Space Travel

The 10 most important things in the world right now

<b>1.</b> Iraqi forces on Saturday launched a counterattack against Islamic State militants near the city of Ramadi, a week after it was seized by insurgents.<p><b>2.</b>At least 13 people have been killed and thousands of homes damaged by a tornado that hit northern Mexico.<p><b>3.</b> States of emergency have been declared …

June 2015