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Filipe Sena (Peta)
Worked at MBA House
Attended USP
Lives in São Paulo
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Filipe Sena

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What makes Raja Ampat so exceptional is the state of the Coral. Here in the famous dive site called Melissa's Garden, the staghorn compete with other type of coral for a place in the sun. Fortunately there was a dead table where we could place the tripod without crashing the fragile corals. 
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TIRA MEU FOLEGO - SESC POMPEIA, de 31.01 a 23.02 | sextas e sabados às 21h, domingos às 18h
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Best app EVER!!!!
The amazing story of Pete and Repeat
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C tá brincando que virou app!
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Have him in circles
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Filipe Sena

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In a tilt-shift world, everything is adorable. http://goo.gl/3UdQMK
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.What goes around, comes around

On September 3, 2002, an amateur astronomer named Bill Yeung looked into his telescope and discovered a strange object near Earth.  Experts were surprised to discover that it was orbiting Earth!  The orbit was unstable, which meant this object hadn't been here long.  But there was no recently launched spacecraft that matched the orbit of this thing!

It got the name J002E3.  It's fun to watch this animated gif and see how J002E3 came in from the Lagrange point L1 between the Earth and Sun, went around the Earth a few times, and then got kicked out.

But what was it?

University of Arizona astronomers found that its electromagnetic spectrum was consistent with white titanium dioxide paint - the same paint used by NASA for the Saturn V rockets. Tracing back its orbit, they found that it had probably been orbiting the Sun for 31 years.  The last time it was near Earth was1971.

This seemed to suggest that it was a part of the Apollo 14 mission. But NASA knew the whereabouts of all hardware used for this mission!  The third stage of that rocket, for example, was deliberately crashed into the Moon for seismic studies. 

So, the most likely explanation seems to be that J002E3 is the third stage of the rocket for Apollo 12.  NASA originally planned to shoot this into an orbit around the Sun.  But they used more of the propellant than planned, and it seems that venting the rest didn't give this rocket stage enough energy to escape the Earth–Moon system.   So, it ended up in a complicated orbit around the Earth after passing by the Moon on November 18, 1969.

It may hit earth someday!   It weighs 10 tonnes.  But don't worry: a 10-tonne meteor hits the Earth every few years, and most of them don't cause much trouble.

I think saw this animated gif in a post by Ole Olson.  The explanation here is adapted from Wikipedia:

https://en.wikipedia.org/wiki/J002E3

and the animated gif was made by Paul Chodas & Ron Baalke of NASA.

#astronomy  
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Que lindo :-)
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From Romário to Neymar - the Brazilian tradition upfront at the Camp Nou http://bit.ly/12FQAt0

De Romário a Neymar, la tradició brasilera en atac al Camp Nou http://bit.ly/12FJ15w

De Romario a Neymar, la tradición brasileña en ataque en el Camp Nou http://bit.ly/13TfjNb
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Have him in circles
209 people
Jim Cummings's profile photo
Fabiola Costa Carraro's profile photo
Aliaksandr Doubeikovsky's profile photo
xu fernando's profile photo
Bruno Golfette's profile photo
Hugo Calazans's profile photo
Work
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Teacher and student (seriously)
Employment
  • MBA House
    Math Teacher
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São Paulo
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Sao Paulo
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Introduction
de lambe em lambe no picolé
de lambida em lambida chega no palito
de palito em palito se dá lapadas
de lapadas a lapadas se dança lambada.
Education
  • USP
    2009
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Male
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Peta
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