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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 5 Feb 2017

    Just an FYI: A 250 lb football player, running 15 mph, has more kinetic energy than a bullet fired from an AK-47 rifle.

    4:45 PM - 5 Feb 2017
    • 20,799 Retweets
    • 49,732 Likes
    • Kayla Salyers Ryan Chickite iStarlable YBGJ shamoli Timothy McLaughlin बोट Sasha Grey Julia Woodward
    933 replies 20,799 retweets 49,732 likes
      1. New conversation
      2. Kraig Urbik‏Verified account @kraigurbik 5 Feb 2017
        Replying to @neiltyson

        what about a 320lb football player running at 12mph?

        5 replies 10 retweets 120 likes
      3. CanIGet Uhhhhhhh‏ @canigetuhhhhhh 5 Feb 2017
        Replying to @kraigurbik @neiltyson

        Kinetic Energy = 1/2mv^2. So, the 250 lb would be 28,125 Joules, and the 320 lb would be 23,040 Joules

        5 replies 3 retweets 89 likes
      4. Trevor Rowe‏ @t_rowe55 5 Feb 2017
        Replying to @canigetuhhhhhh @kraigurbik @neiltyson

        did you convert to meters/second and kg? Otherwise your calculation will be way off

        2 replies 3 retweets 53 likes
      5. CanIGet Uhhhhhhh‏ @canigetuhhhhhh 5 Feb 2017
        Replying to @t_rowe55 @kraigurbik @neiltyson

        Ah yes you're right, I did forget, my bad. However, the 250 lbs will still be more Joules

        3 replies 3 retweets 36 likes
      6. Cristina Furlong‏ @missmarty70 5 Feb 2017
        Replying to @canigetuhhhhhh @t_rowe55 and

        How cool to have physics mentors on twitter.

        2 replies 3 retweets 61 likes
      7. 2 more replies
      1. New conversation
      2. Tyson Novakovich‏ @6foot_tyson 5 Feb 2017
        Replying to @kos_dawg @Cubsbeisbol @neiltyson

        #alternativefacts

        1 reply 0 retweets 39 likes
      3. EmperorGrinnar‏ @EmperorGrinnar 5 Feb 2017
        Replying to @6foot_tyson @kos_dawg and

        I burst out laughing at that. Kudos.

        0 replies 0 retweets 13 likes
      4. End of conversation
      1. New conversation
      2. David Banks‏Verified account @DBanksy 5 Feb 2017
        Replying to @neiltyson

        @tom_marzipan but, to be fair, with less penetrative effect. Unless you invent some sort of footballer cannon

        15 replies 15 retweets 260 likes
      3. 100% Organic Talking Meat Creature‏ @riney 5 Feb 2017
        Replying to @DBanksy @neiltyson @tom_marzipan

        now that might get me to watch

        1 reply 2 retweets 112 likes
      4. 1 more reply
      1. New conversation
      2. Dmitri Dmitriyevich‏ @RutteOudeSimon 5 Feb 2017
        Replying to @neiltyson

        I am aware tonight is an American party, but this tweet would be so much better in metric.

        2 replies 1 retweet 29 likes
      3. Svennus J. Max‏ @SvensTweet 5 Feb 2017
        Replying to @RutteOudeSimon

        pic.twitter.com/UudzkcOrsO

        2 replies 13 retweets 78 likes
      4. Dmitri Dmitriyevich‏ @RutteOudeSimon 5 Feb 2017
        Replying to @SvensTweet @neiltyson

        🤓

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. Jennifer‏ @Jennifer_T4232 5 Feb 2017
        Replying to @TetrologyGaming @AtheistWWonka @neiltyson

        that's what she said

        0 replies 0 retweets 27 likes
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