Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
neiltyson's profile
Neil deGrasse Tyson
Neil deGrasse Tyson
Neil deGrasse Tyson
Verified account
@neiltyson

Tweets

Neil deGrasse TysonVerified account

@neiltyson

Astrophysicist

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

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    Neil deGrasse Tyson‏Verified account @neiltyson 13 Nov 2015

    Hey @JohnAllenPaulos, The value of Pi at my NYC corner deli is $9.49 a slice. What’s the value Pi in Philadelphia, your home?

    9:53 AM - 13 Nov 2015
    • 295 Retweets
    • 1,091 Likes
    • Angry Activist Someone 「      」 Elisabeth Darcy née Bennet Belen Simpson Abby Rolyne Butler Corvid Gasimov
    122 replies 295 retweets 1,091 likes
      1. New conversation
      2. John Allen Paulos‏ @JohnAllenPaulos 13 Nov 2015
        Replying to @neiltyson

        Hi @neiltyson. Find another deli. Here in Philly, a whole pizza of radius z and depth a costs $9.49 and has (cylindrical) volume pi*z*z*a.

        12 replies 255 retweets 493 likes
      3. 1 more reply
      1. The Buzz About‏ @TheBuzzAbout 13 Nov 2015
        Replying to @neiltyson

        What a Friday Twitter treat! Two great minds, @neiltyson and @JohnAllenPaulos in a Twitter (non) feud!

        0 replies 3 retweets 3 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Pete Teoh‏ @pteoh 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos you must live in a much fancier NYC neighborhood than I do.

        0 replies 0 retweets 5 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Don Hammonds‏ @DonDurgad 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos Depends on how you slice it!!

        0 replies 0 retweets 5 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Matty‏ @i_am_MattNorton 13 Nov 2015
        Replying to @neiltyson

        Thanks for the great math laughs! @neiltyson @JohnAllenPaulos

        0 replies 1 retweet 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. New conversation
      2. Eli Mellen‏ @eli_oat 13 Nov 2015
        Replying to @neiltyson

        What about this, @neiltyson @JohnAllenPaulos http://phys.org/news/2015-11-derivation-pi-links-quantum-physics.html … Math - man-made or embedded in the structure of the universe @mellenmb

        2 replies 0 retweets 1 like
      3. Eli Mellen‏ @eli_oat 13 Nov 2015
        Replying to @eli_oat

        Is math more “top chef” or “Indiana Jone” — are we creating it or discovering artifacts? @neiltyson @JohnAllenPaulos @mellenmb

        0 replies 0 retweets 1 like
      4. End of conversation
      1. Charles in NJ‏ @catintp 13 Nov 2015
        Replying to @neiltyson

        @neiltyson You know, you could always book @JohnAllenPaulos as a guest for @StarTalkRadio...

        0 replies 0 retweets 2 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. The Art Fella  🖌️‏ @Secoh2000 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos mine costs 3.14159265. Been hard finding exact change! D:

        0 replies 0 retweets 2 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Kalvik‏ @KDKalvik 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos 3.14

        0 replies 0 retweets 2 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Sandia the ET‏ @SandiaWisdom 18 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos In archeoplanetography, PI stands for planetary image, portraying the dominant species influencing an area. :-)

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. taiyyaba‏ @taiyyaba 13 Nov 2015
        Replying to @neiltyson

        @neiltyson what kind of gold-plated slices are these?!

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Black Pug Studio‏ @BlackPugStudio 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos What about in Galway (soon to be European Capital of Culture)? Let's ask @CupanTaeGalway maybe? @galway2020 :)

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Darrell  🖖🏽‏ @TheTrekNerd 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos Holy jeez! I can get 2π for that price.

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Mehul Mohan‏ @mehulmpt 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos It's quite irrational here, in India.

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. MikeTalonNYC‏ @MikeTalonNYC 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos 10 bucks a slice for Pi?! You have to start eating downtown!

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Moneten Mac  ♦️‏ @TheFabulousMac 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos Didn't you mean Piladelphia?

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. isaac mayfield‏ @MindNuked 13 Nov 2015
        Replying to @neiltyson

        @neiltyson @JohnAllenPaulos you mean pie silly head not PI

        0 replies 0 retweets 1 like
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. sheray‏ @Sgraym10 20 Dec 2015
        Replying to @neiltyson

        @neiltyson Hope it's big slice! Can get whole pie here in Knoxville TN & have change leftover from $9.49.

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo

    Loading seems to be taking a while.

    Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

      Promoted Tweet

      false

      • © 2018 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Cookies
      • Ads info