Showing Tag: "nyu" (Show all posts)

Science Thursday, Taking Paper Airplanes To The Next Level...

Posted by Guest Editor, NPR on Thursday, January 12, 2012, In : Must read 
Leif Ristroph and colleagues at NYU are designing tiny paper aircraft and making them fly using a pot, a speaker and a bunch of straws. When the subwoofer plays a low-frequency tone, it pushes the air above it up and down, which is funneled through the pot and straws, creating a flow of pulsing air.

The system simulates flapping flight by taking the flap out of the wing and putting it into the air. Ristroph explains what his aircraft are teaching him about stable flight.

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Targeting the Ultra Poor: can the poorest be reached by microfinance? - Video with Morduch discussing pilot initiatives for reaching the ultra poor

Posted by Editor C on Thursday, August 19, 2010, In : Guest Blogger 
Courtesy of FAI

Can the poorest be reached with finance? “Ultra poor” members of society face a series of constraints and deprivations that distinguish them from the general poor. Limited social networks, chronic malnutrition, and reliance on patronage systems characterize a socioeconomic class that is hard to “bank.” Research now indicates that most microfinance institutions serve poor and lower-income customers, but not the poorest. A new FAI Framing Note on “Targeting the ...


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