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Sriram Karra
Works at Interviewstreet
Attended IIM Kozhikode
Lives in Bangalore
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Sriram Karra

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Hah. I'd say more like 20 years back :) I remember when we first installed linux in our shared hostel PC and introduced to the wonders of electronic mail (even if it was not connected ... to anything), we'd send each other email and go hunt them down in the Mess and tell them "I sent you an email; go check!"
 
10 years ago vs. now #True  
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I love that we do fairly sophisticated longitudinal studies about people and our workplaces in order to determine all kinds of interesting trends and to figure out ways to make people happier, healthier, and more productive. Two years into a hundred year study!

Nice writeup, +Laszlo Bock! I look forward to the final report in 2112.
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Sriram Karra

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Sriram Karra

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"Qn: Who is the greatest hero?
Ans: He who is not terror stricken by the arrows which shoot from the eyes of a beautiful girl"

Now, as insightful as that quote is, what is absolutely intriguing is its source. This quote is from a section called "Prasna-Uttara-Malika" of Sankara's Viveka Chudamani, widely considered as one of the most influential books on Vedanta.

http://www.amazon.com/Shankaras-Crest-Jewel-Discrimination-Shankara-ebook/dp/B0031ER4SI/ref=sr_1_1?ie=UTF8&qid=1397189294&sr=8-1&keywords=viveka+chudamani+prabhavananda
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Few things are capable of putting our insignificant existence into perspective as "a view from above". Fascinating.
 
Broken World

If you look at Earth from a distance, two things stand out clearly.  The first is that Earth is a watery world.  Water covers the majority of its surface, and there is so much water vapor in its atmosphere that it collects into clouds.  The second is that it has a very, very large moon.  There are moons in our solar system larger than Earth’s, but no other planet has such a large moon in comparison to its size.  Both of these are likely due to the fact that Earth is a broken world.

None of the other rocky inner planets have sizable moons.  Mars has two small moons that are likely captured asteroids, and neither Mercury nor Venus have any moon at all.  Earth has a moon that rivals the moons of Jupiter in terms of size.

Just how the Earth got such a large moon is still debated, but the prevailing theory is that during the formation of the solar system proto-Earth collided with a Mars-sized planetoid sometimes named Theia.  Part of the mass of Theia was captured to become Earth, and the remains formed a debris ring around Earth, much of which coalesced to form the Moon.

There is actually a lot of evidence to support this model.  Analysis of lunar rocks from the Apollo missions have found that the Earth and Moon have the same chemical composition.  Oxygen isotopes from Lunar and terrestrial rocks are basically identical, for example.  Other solar system bodies such as Mars, and other asteroids have different oxygen isotopes.  This means that the Earth and Moon must have a common origin.  The Moon didn’t, for example, form elsewhere in the solar system to be later captured by Earth.

Another aspect is that the Moon has a density about 60% that of Earth.  This is exactly what is predicted by the collision model, where the lighter outer layers of Theia and proto-Earth are scattered to the debris disk, while the heavy core of proto-Earth remains.  If the Earth and Moon had formed in orbit as separate bodies, their densities should be much more similar.

The water of our world is also due to collisions with other bodies.  The infant Earth was hot, and had little atmosphere, so any water formed with the planet would have boiled off into space.  The wetting of our planet must have occurred after it had cooled.  This was likely due to bombardment by either comets or meteors.  Surprisingly, the primary contributor was likely meteors, not comets.  Comparison of hydrogen isotopes from certain meteors are actually a better fit to Earth’s hydrogen than those of comets.  Water was also deposited on the Moon, but with less mass and no atmosphere it simply couldn’t develop lakes or oceans.

The view of Earth from space often evokes thoughts of an Eden.  That pale blue dot that cradles humanity.  But our planet’s fragile beauty was born from violent collisions large and small.

Image: NASA
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I occasionally wonder what +Jamie Zawinski thinks of the last ten years of startup action in the valley
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http://www.telegraph.co.uk/news/worldnews/northamerica/usa/10680902/America-has-a-new-weapon-to-use-against-Russia-the-E-Bomb.html

"Russia is, in effect, a giant gas company with a military attached to it."

"The shale revolution (in america), and its awesome implications, have taken most of Washington by surprise – it was unforeseen, even six years ago. And in six years’ time, America will have overtaken Saudi Arabia as the world’s top supplier of hydrocarbons, with all the extra clout that will bring. Ten years after that, it will be completely self-sufficient – a development that may transform world politics as profoundly as the collapse of the Berlin Wall."

Wow!!
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More #RealGravity images tonight as #Gravity is up for awards at the #Oscars2014: Astronaut Bruce McCandless II, is seen further away from the confines and safety of his ship than any previous astronaut has ever been on Feb. 12, 1984. This space first was made possible by the Manned Manuevering Unit or MMU, a nitrogen jet propelled backpack. After a series of test maneuvers inside and above Space Shuttle Challenger's payload bay, McCandless went "free-flying" to a distance of 320 feet away from the Orbiter. This stunning orbital panorama view shows McCandless out there amongst the black and blue of Earth and space.

Image credit: NASA
#nasa #space #iss #spacepix #gravity #oscars2014 #oscars #realgravity #oscarceremony
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Have him in circles
472 people
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Work
Occupation
Product Management
Employment
  • Interviewstreet
    Senior Product Manager, 2013 - present
  • Cleartrip
    Senior Product Manager, 2011 - 2013
  • Tech Mahindra Ltd
    Senior Manager, Strategic Initiatives, 2007 - 2011
  • HCL Technologies
    Lead Engineer, 2002 - 2005
  • Prodapt India Private Ltd
    Software Engineer, 2002 - 2002
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Currently
Bangalore
Previously
Madras - London - Kozhikode - Karaikudi - Salt Lake City, Utah
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Product Manager by day; Programmer by night.
Education
  • IIM Kozhikode
    MBA, 2005 - 2007
  • University of Utah, Salt Lake City, USA
    MS, Computing Science, 1998 - 2001
  • CECRI, Karaikudi
    B.Tech, Chemical & Electrochemical Engineering, 1994 - 1998
  • P S Senior Secondary School, Madras
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