In finance an ‘iron butterfly,’ also known as the ironfly, is the name of an advanced, neutral-outlook, options trading strategy that involves buying and holding four different options at three different strike prices. It is a limited-risk, limited-profit trading strategy that is structured for a larger probability of earning smaller limited profit when the underlying stock is perceived to have a low volatility.SO COOL
(Source: Wikipedia)
All your friends and peers and family solemnly tell you you will / Have to grow up be an adult yeah be bored and unfulfilled / Oh when no one’s yet explained to me exactly what’s so great / About slaving 50 years away on something that you hate
Oh, what can you do with a man like that? What can you do? How can you dissuade his eye in a crowd from seeking out the cheek with acne, the infirm hand; how can you teach him to respond to the inestimable greatness of the race, the harsh surface beauty of life; how can you put his finger for him on the obdurate truths before which fear and horror are powerless?The Stories of John Cheever, John Cheever
Soyuz capsule brings space station crew back to Earth
A Soyuz capsule carrying two Russian cosmonauts and a U.S. astronaut from the International Space Station (ISS) landed safely in Kazakhstan on Friday. (Kirill Kudryavtsev/Pool/Reuters)
ARCA is developing this rocket powered supersonic airplane for the Google Lunar X-Prize competition. The airplane is able to take-off from the sea and to transport the HAAS II Launcher to an altitude of 16,000 m
Looks like a bigger YF-23, whose angles mainly exist to reduce RCS; why ARCA imitated it with a civil aircraft, I do not know. The first supersonic seaplane didn’t make it due to huge vibrations during seaborne takeoff.
Piled Higher and Deeper: The Movie, filmed at Caltech with actual doctoral students.
(Source: phdmovie.com)
You put six items of clothing on the counter. Oksana Alexandrovna lets out a sigh. This would be the point where you would normally get your receipt and go. But this is Russia. It’s time to get to work. A huge stack of forms emerges. Oksana Alexandrovna takes a cursory glance at your clothes. Then the examination – and the detailed documentation – begins. This black H&M sweater is not a black H&M sweater. It is, in her detailed notes on a paper titled “Receipt-Contract Series KA for the Services of Dry and Wet Cleaning”, “a black women’s sweater with quarter sleeves made by H&M in Cambodia”. Next, there are 20 boxes that could be ticked. Is this sweater soiled? Is it mildly soiled? Very soiled? Perhaps it is corroded? Yellowed? Marred by catches in the thread? All this, and more, is possible.The hell of Russian bureaucracy
(Source: Guardian)
Neil Saiki, a Santa Cruz engineer, has plenty of rotor rooters as he chases the $250,000 Igor I. Sikorsky Prize, to be awarded to whoever comes up with a human-powered helicopter capable of hovering for 1 minute and rising 3 meters.
I was in my school’s HPH team for three years, probably the main reason for my current job. The HPH goal is tough as hell - humans don’t produce much power and rotors are inefficient lift generators. Saiki went to Cal Poly SLO, the school that produced Burt Rutan twenty years earlier. Best of luck to them.
Dragonfly CFD analysis
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