Boas notícias!

A mais importante para qualquer Engenhocas, Programas CAD/3D GRÁTIS!

http://www.buildlog.net/blog/2010/09/free-2d-cad-solutions/

...Estudantes que são úteis à Humanidade, desenvolveram uma ideia genial para auxiliar  feridos em Zonas de Catástrofe!

Student-made device helped wounded in Haiti

(Reuters Health) - When surgeons from Harvard Medical School went to Haiti soon after last January's earthquake, they took along some experimental three-dollar devices they hoped would help victims' wounds heal faster. The devices had never been tested in patients before, but they didn't need electricity, and they could be operated by the average person -- exactly what was needed in the post-earthquake devastation.
Designed by engineering students at the Massachusetts Institute of Technology, each device involved an accordion-like plastic pump (in reality an industrial-size toilet plunger) and some tubing. The tubing goes under an air-tight seal over the wound, and the pump is squeezed to create suction. The resulting vacuum provides what's known as "negative wound pressure therapy."

http://www.reuters.com/article/idUSTRE6975MZ20101008

Exo-esqueletos, talvez o futuro para tantos que se arrastam, quando poderiam andar...

Real-Life Iron Man Exoskeleton Gets a Slimmer, More Powerful Sequel

By Dan Nosowitz

 

The XOS Exoskeleton, which was first shown off about two and a half years ago, was the first full-body suit that really evoked the sci-fi and comic fan's dream of donning a suit that grants superhuman strength. Late last week, Raytheon-Sarcos demonstrated the newest XOS suit--the sequel, you might say.

Not so coincidentally, Paramount Pictures was on hand to talk about the suit's connections to Iron Man 2, which comes out on DVD/Blu-ray this week. But unlike Iron Man 2, which was all about more (more villains! More length! More plotlines!), the XOS-2 is all about less: Less energy required, less heavy, and less muscle required to lift objects.

Most importantly, the ratio between actual and perceived weight lifted is much improved, going from 6:1 in the XOS-1 to a whopping 17:1 in the XOS-2. A 50-pound weight feels like only three pounds, and a 200-pound weight feels like only 12. Test engineer Rex Jameson (that name even sounds like a superhero, doesn't it?) was able to punch through four one-inch boards strapped together, and repeatedly lifted a 200-pound artillery shell.

http://www.popsci.com/technology/article/2010-09/real-life-iron-man-suit-gets-sequel

Micro-Instrumentos Musicais:

Listen: Microscopic Instrument Produces Tones Humans Can Hear

By Julie Beck

Had you happened to be in the eastern Netherlands on Sunday, you could have had the opportunity to hear a new composition: “Impromptu No. 1 for Micronium.” However, you probably wouldn’t have seen much. That’s because the micronium, while it may sound like a miniature tuba, is actually the first musical instrument measured in micrometers whose tones are audible to humans.

Created by students at the University of Twente, the micronium is made up of springs one tenth the thickness of a human hair hung with a mass weighing no more than a few dozen micrograms. The springs are plucked by miniature combs that fit together just so, producing a tiny movement and a tone. Six of these tones can fit on one microchip, and by combining chips you get the range of tones needed to play more varied compositions.

http://www.popsci.com/technology/article/2010-09/microscopic-instrument-produces-tones-humans-can-hear