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kchangnyt's profile
Kenneth Chang
Kenneth Chang
Kenneth Chang
@kchangnyt

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Kenneth Chang

@kchangnyt

Science reporter at the New York Times. Pluto, dinosaurs, NASA, viral math & more...

New York, NY
nytimes.com/by/kenneth-cha…
Joined April 2014

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    1. Kenneth Chang‏ @kchangnyt 16 Nov 2016

      Why Pluto rolled over http://nyti.ms/2fW0rcb 

      1 reply 4 retweets 4 likes
    2. David Hesperos‏ @DavidHesperos 16 Nov 2016
      Replying to @kchangnyt @gmusser

      Maybe I misread but if the heart were heaver wouldn't it face Charon? & there are 4 other satellites 2 verify the theory

      1 reply 0 retweets 0 likes
    3. Kenneth Chang‏ @kchangnyt 16 Nov 2016
      Replying to @DavidHesperos @gmusser

      it’s tidal forces. 2 stable pts: directly under Charon or on opposite side. Starting pt determines ending pt.

      1 reply 0 retweets 0 likes
    4. David Hesperos‏ @DavidHesperos 16 Nov 2016
      Replying to @kchangnyt @gmusser

      Have to take your word for it, illogical as it may seem, since that's not my area of expertise, but still...

      1 reply 0 retweets 0 likes
    5. Kenneth Chang‏ @kchangnyt 16 Nov 2016
      Replying to @DavidHesperos @gmusser

      Same concept as ocean tides on Earth. One high tide under Moon, also high tide the side of Earth opposite from Moon.

      3 replies 0 retweets 0 likes
    6. David Hesperos‏ @DavidHesperos 17 Nov 2016
      Replying to @kchangnyt @gmusser

      On earth, bulges on both sides have the same density. Not so on Pluto. Imagine a lead weight glued to a ping pong ball.

      1 reply 0 retweets 0 likes
    7. Kenneth Chang‏ @kchangnyt 17 Nov 2016
      Replying to @DavidHesperos @gmusser

      1. Imagine weight starts at far side of Pluto. Then try to rotate it to move it to position under Charon.

      2 replies 0 retweets 0 likes
    8. Kenneth Chang‏ @kchangnyt 17 Nov 2016
      Replying to @kchangnyt @DavidHesperos @gmusser

      2. As soon as it moves, it's offset, and there's a gravitational force trying to pull back to where it started.

      1 reply 0 retweets 0 likes
    9. Kenneth Chang‏ @kchangnyt 17 Nov 2016
      Replying to @kchangnyt @DavidHesperos @gmusser

      We could do the math if you want.

      1 reply 0 retweets 0 likes
    10. David Hesperos‏ @DavidHesperos 17 Nov 2016
      Replying to @kchangnyt @gmusser

      I'm sure, but although the ping-pong ball is stable both ways, chances are if you drop it, it will end up weight down.

      1 reply 0 retweets 0 likes
      Kenneth Chang‏ @kchangnyt 17 Nov 2016
      Replying to @DavidHesperos @gmusser

      You're thinking weight glued to something hollow. Here it's small mass glued to huge and heavy Pluto. Not analogous.

      9:43 AM - 17 Nov 2016
      2 replies 0 retweets 0 likes
        1. New conversation
        1. Kenneth Chang‏ @kchangnyt 17 Nov 2016
          Replying to @kchangnyt @DavidHesperos @gmusser

          Again, the only way to really figure it out is math.

          1 reply 0 retweets 0 likes
        2. 6 more replies

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