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neiltyson's profile
Neil deGrasse Tyson
Neil deGrasse Tyson
Neil deGrasse Tyson
Verified account
@neiltyson

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Neil deGrasse TysonVerified account

@neiltyson

Astrophysicist

New York City
haydenplanetarium.org/tyson/
Joined January 2009

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    Neil deGrasse Tyson‏Verified account @neiltyson 17 Apr 2013

    @LunchHam The Sun is 1/2 of 1% as bright at Jupiter than at Mercury. But Jupiter is 300x bigger. All told, it receives 1.5x the Sun's energy

    8:37 AM - 17 Apr 2013
    • 149 Retweets
    • 93 Likes
    • Mr.  Meeseeks Firebrand Fernanda Edward Goodwin Aidan ☭ Ethan Francisco Barahona S Infinity Roger C. Depew
    38 replies 149 retweets 93 likes
      1. Ninza‏ @haaalfbaked 23 Apr 2013
        Replying to @neiltyson

        It's crazy how much info @neiltyson fits into a tweet and here we normal people are fillin up characters with hashtags #ourgenerationsuckz

        0 replies 0 retweets 1 like
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      2. Isaac Moore‏ @iamramsey 17 Apr 2013
        Replying to @neiltyson

        @neiltyson What's the brightest star we can see from earth? North Star? (I know you said North Star isn't the brightest)

        2 replies 0 retweets 0 likes
      3. Guillaume‏ @GuillaumeCr 17 Apr 2013
        Replying to @iamramsey

        @iamramsey @neiltyson The sun ?

        1 reply 0 retweets 1 like
      4. Isaac Moore‏ @iamramsey 17 Apr 2013
        Replying to @GuillaumeCr

        @GuillaumeCr @neiltyson Aside from the sun :) I meant nighttime stars.

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. Brian Carpenter‏ @physicscarp 18 Apr 2013
        Replying to @neiltyson

        @neiltyson My students shared this tweet today in physics and decided to fact check you. Thanks for a great class.

        0 replies 0 retweets 0 likes
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      1. Thomas‏ @thomooo 18 Apr 2013
        Replying to @neiltyson

        @neiltyson Hey Neil. I tried to do this for myself, but I end up with a factor ~5.7. Am I doing anything wrong? http://goo.gl/5f5Gl 

        0 replies 0 retweets 0 likes
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      1. daniel jones‏ @Djones173n82 17 Apr 2013
        Replying to @neiltyson

        @neiltyson Is that considered a large amount overall?

        0 replies 0 retweets 0 likes
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      1. ∀lan ∃liasen‏ @aeliasen 17 Apr 2013
        Replying to @neiltyson

        .@neiltyson Also, any time saying "bigger" should be considered wrong. Is that radius, area, volume, or mass that's 300x bigger?

        0 replies 0 retweets 0 likes
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      1. ∀lan ∃liasen‏ @aeliasen 17 Apr 2013
        Replying to @neiltyson

        .@neiltyson The surface area that Jupiter presents to the sun is 859 times that of Mercury. pi r^2. Where does 300 figure come from?

        0 replies 0 retweets 0 likes
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      2. ∀lan ∃liasen‏ @aeliasen 17 Apr 2013
        Replying to @neiltyson

        .@neiltyson In Frink, correct calc is: (pi jupiterradius^2/jupiterdist^2) / (pi mercuryradius^2/mercurydist^2) http://futureboy.us/frinkdocs/ 

        1 reply 0 retweets 0 likes
      3. Isaac Rabinovitch‏ @isaac32767 17 Apr 2013
        Replying to @aeliasen

        @aeliasen @neiltyson http://bit.ly/17HrUEW 

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. ∀lan ∃liasen‏ @aeliasen 17 Apr 2013
        Replying to @neiltyson

        .@neiltyson This is incorrect. Jupiter receives 4.75 times as much energy. Show your calculations.

        0 replies 0 retweets 0 likes
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      1. Kevin‏ @KevinAMLewis 17 Apr 2013
        Replying to @neiltyson

        @neiltyson So catching more light means you catch more energy?

        0 replies 0 retweets 0 likes
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      1. Michael Walsh‏ @EpiDoctor 17 Apr 2013
        Replying to @neiltyson

        @neiltyson Jup receives 50% more E from sun than Merc? E received is function of volume of space you take up, not distance from E source?

        0 replies 0 retweets 0 likes
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      2. John Campbell‏ @johnmarcampbell 17 Apr 2013
        Replying to @neiltyson

        @neiltyson Hmm, I get (R_j/R_m) ~30. So I'd expect the energy to go like (30^2)*(0.5%) = 4.5 times the energy. Did I miss something?

        1 reply 0 retweets 0 likes
      3. ∀lan ∃liasen‏ @aeliasen 17 Apr 2013
        Replying to @johnmarcampbell

        @johnmarcampbell You're right. Factor is 4.75 times. Neil is wrong. See http://futureboy.us/blog/sunsetequator.html …

        1 reply 0 retweets 0 likes
      4. John Campbell‏ @johnmarcampbell 17 Apr 2013
        Replying to @aeliasen

        @aeliasen Thanks. Not a big deal, just wanted to make sure I understood what was going on.

        1 reply 0 retweets 0 likes
      5. ∀lan ∃liasen‏ @aeliasen 17 Apr 2013
        Replying to @johnmarcampbell

        @johnmarcampbell Now just need to contact 1 million more people to help them unlearn the incorrect fact... :)

        0 replies 0 retweets 0 likes
      6. End of conversation
      1. ∀lan ∃liasen‏ @aeliasen 17 Apr 2013
        Replying to @FKinHOU

        @FKinHOU Neil's math is wrong. Jupiter receives about 4.75 times as much energy as Mercury does. see http://futureboy.us/blog/sunsetequator.html …

        0 replies 0 retweets 0 likes
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