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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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    1. Greg Tamaki‏ @jimsonjim 8 Sep 2017

      @neiltyson Yo is it true that, even tho there are 7 billion more people today than 3 million years ago, that the world weighs the same now??

      23 replies 65 retweets 606 likes
      Neil deGrasse Tyson‏Verified account @neiltyson 8 Sep 2017
      Replying to @jimsonjim

      FYI: Earth gains several hundred tons of mass per day, mostly from (small) meteors. People are in equilibrium with the Sun & food chain.

      7:40 PM - 8 Sep 2017
      • 708 Retweets
      • 6,228 Likes
      • Prakash jha Cassio Fonseca Astrid H. Nelson Flyer Damian Munroe 3rdLUCASbrother Ndriqim Halili The Cure Nissey
      133 replies 708 retweets 6,228 likes
        1. New conversation
        2. w terence reilly md‏ @wtreilly 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          Does the gain in mass alter our orbit? Will we crash into/drift away from the sun?

          2 replies 2 retweets 14 likes
        3. Neil deGrasse Tyson‏Verified account @neiltyson 8 Sep 2017
          Replying to @wtreilly @jimsonjim

          Gnats on the back of an elephant are 10-billion times heavier, relative to the elephant than a day’s accumulation of meteors are to Earth

          14 replies 45 retweets 415 likes
        4. 1 more reply
        1. New conversation
        2. Ismail Altintas‏ @FenDunyasi 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          That is the example (question) I tell (ask) my students every year when teaching law of conservation of mass. Don't ruin it please 🙄

          2 replies 1 retweet 6 likes
        3. Ismail Altintas‏ @FenDunyasi 8 Sep 2017
          Replying to @FenDunyasi @neiltyson @jimsonjim

          "Has the Earth's mass ever changed since it had been a planet?"

          2 replies 2 retweets 1 like
        4. Ismail Altintas‏ @FenDunyasi 8 Sep 2017
          Replying to @FenDunyasi @neiltyson @jimsonjim

          Ismail Altintas Retweeted Neil deGrasse Tyson

          https://twitter.com/neiltyson/status/905796048882413569 …

          Ismail Altintas added,

          Neil deGrasse TysonVerified account @neiltyson
          In school, curiosity is hardly ever taught or nurtured, breeding legions of students who’ve lost all love of learning.
          4 replies 1 retweet 11 likes
        5. 1 more reply
        1. Freddie the Flute‏ @FreddieFlute 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          pic.twitter.com/UpC8uLzaA8

          0 replies 3 retweets 12 likes
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        1. New conversation
        2. bri rakotz  🦄‏ @bri_rakotz 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          How do you even weigh a planet?

          4 replies 0 retweets 8 likes
        3. Hector‏ @hector_rc_ 9 Sep 2017
          Replying to @bri_rakotz @neiltyson @jimsonjim

          Here's 1 way: You can measure the speed, distance & mass of the orbiting ISS. The first 2 tell us the gravity force applied. - - >

          1 reply 0 retweets 1 like
        4. Hector‏ @hector_rc_ 9 Sep 2017
          Replying to @hector_rc_ @bri_rakotz and

          You then can calculate mass with fancy equations. But that's just mass. If you want weigh you need a point of reference like the Sun.

          1 reply 0 retweets 1 like
        5. Hector‏ @hector_rc_ 9 Sep 2017
          Replying to @hector_rc_ @bri_rakotz and

          But you need to know the mass of the point of reference. With the sun, we could calculate its mass using the amount of radiation I guess.

          1 reply 0 retweets 1 like
        6. Hector‏ @hector_rc_ 9 Sep 2017
          Replying to @hector_rc_ @bri_rakotz and

          All this assumes there are no other celestial bodies (or they don't interfere much). But it is possible to detect the trend @neiltyson says.

          0 replies 0 retweets 1 like
        7. End of conversation
        1. Tyler Watson‏ @TylerWatson01 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          Can you help me with my thermo homework?

          0 replies 0 retweets 11 likes
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        1. Will Hunting‏ @_RonnieBass 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          Wow (Owen Wilson voice)pic.twitter.com/79CpyWj4UD

          0 replies 0 retweets 13 likes
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        1. Tom Dougherty‏ @cbcwatcher8 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          Earth's mass: 5.972 × 10^21 Mg. Even 500 tons/d (~500 Mg) would be only ~180 × 10^3 Mg/y. The people: biomass of other species mainly.

          0 replies 0 retweets 5 likes
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        1. New conversation
        2. C. Holland‏ @LuckyMrHolland 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          I fucking love you man. I needed that on this Friday night. Keep on keeping on; Live, Love, and Learn.

          1 reply 0 retweets 8 likes
        3. 1 more reply
        1. Jay Lundgreen‏ @jaylundgreen 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          I have no doubt that you are correct, but I am perplexed as to how that could be measured.

          0 replies 0 retweets 3 likes
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        1. M James Conway  ✍️‏ @conwaymjames 8 Sep 2017
          Replying to @neiltyson @jimsonjim

          The earth gets heavier as Trump's hair gets longer. #FACTS

          0 replies 0 retweets 4 likes
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