2017年1月24日星期二

Yahoo! News: Education News

 
 
 
 
 
 
 
 

Yahoo! News: Education News


School system that fired woman for tweet updates guidelines

Posted: 24 Jan 2017 09:03 AM PST

FREDERICK, Md. (AP) — A Maryland school system has updated its social media guidelines after a school system employee was fired for a lighthearted quarrel she had with a student on Twitter over the student's spelling.

E-cigarettes may encourage teenagers to smoke

Posted: 24 Jan 2017 07:56 AM PST

E-cigarettes have not contributed to a decrease in teenage smoking.E-cigarettes may entice teenagers who would not have touched tobacco to smoke. According to a US study published in the journal Pediatrics, the arrival of e-cigarettes on the market has not contributed to a reduction in teenage smoking. The new study conducted by researchers from the University of California San Francisco, which surveyed 140,000 high school students between 2004 and 2014, confirms previous studies that found that e-cigarettes amount to a "gateway" to smoking addiction.


A group of college students wants to brew beer on the moon, because why not

Posted: 23 Jan 2017 04:53 PM PST

A group of college students wants to brew beer on the moon, because why notThe moon: Great and all, but don't you think it's missing something? I mean, yes, it could use human-rated habitats, some moon buggies, maybe a little infrastructure. Beyond that, though, what does the moon really need?  It needs beer.  Or so says a team of obviously brilliant (though potentially drunk) engineering students from the University of California, San Diego, who want to brew suds. On the moon. All in the name of science. Their reasoning holds up, too. SEE ALSO: The first photos from a revolutionary new weather satellite are gorgeous "The idea started out with a few laughs amongst a group of friends," team member Neeki Ashari said in a statement. "We all appreciate the craft of beer, and some of us own our own home-brewing kits." The team has entered a competition to fly to the surface of the moon with TeamIndus —one of the teams competing in the Google Lunar X Prize competition—before the end of this year.  Some of the tech behind the brew kit. Image: Erik Jepsen/UC San Diego Publications "When we heard that there was an opportunity to design an experiment that would go up on India's moonlander, we thought we could combine our hobby with the competition by focusing on the viability of yeast in outer space," Ashari added. By learning more about how to ferment beer in space, the students could help figure out how bread and other yeast-rich foods might be made in space, as humans push further out into the solar system.  However, if their experiment is flown, it won't be the first time alcohol's made it to space or even the moon.  NASA astronaut Buzz Aldrin famously took communion on the moon's surface during his Apollo 11 mission. Before eating and drinking the wine and bread he brought from Houston, Aldrin said:  A Colorado-based team actually brewed a very small amount of beer on one of NASA's space shuttles as part of an experiment. According to NASA, the yeast behaved strangely when brewing the beer in space, but by many measures the beer was effectively the same as it was when brewed on Earth. According to another report, cosmonauts also drank doctor-recommended cognac on the space station Mir in the 1990s. Ardbeg whiskey was actually aged on the International Space Station as part of an experiment for more than two years before it was flown back home to Earth.  And of course, when it came back home, the experimenters needed to do a taste test.  "When myself and my team went to nose and taste the samples ... I was quite astonished at how different the samples were,"  Bill Lumsden, Ardbeg's director of distilling, said in a video. "That was the key result for me. The Earth control samples certainly resembled Ardbeg as we know and love it, but up on the Space Station, it was a whole new range of samples, some flavors I hadn't encountered before." BONUS: Enjoy draft beer anywhere with this portable tap


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