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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 27 May 2016
      Replying to @FaizaFaria

      NEOWISE is wildly wrong at times too. Would be amazing if it weren’t. It’s assuming spherical asteroids + fudge factors.

      2 replies 0 retweets 0 likes
    2. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      Do you have an example of NEOWISE being wildly wrong? Anything like this guy saying 39x34km asteroid is actually 6.6km?

      1 reply 0 retweets 0 likes
    3. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      Al the Elder mentioned asteroids with NEOWISE albedos of ~1.0. No one thinks they are really that bright.

      2 replies 0 retweets 0 likes
    4. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      Specifically: any example of NEOWISE measurement of the size of a known size asteroid being wildly wrong? One example?

      1 reply 0 retweets 0 likes
    5. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      1. Their own claim is error more than 10% half of the time,

      1 reply 0 retweets 0 likes
    6. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @kchangnyt @FaizaFaria

      2. They calibrated fudge factors to known asteroid sizes, so they should be close, right? Would really like someone to explain.

      1 reply 0 retweets 0 likes
    7. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @kchangnyt @FaizaFaria

      3. I would say an albedo of 1.0 would likely be “wildly wrong.” But can’t check independently.

      4 replies 0 retweets 0 likes
    8. iDreamOfSushi‏ @FaizaFaria 27 May 2016
      Replying to @kchangnyt

      3. Example of asteroid size measurement being wildly wrong, please. Or please admit that you do not have such an example. /1

      1 reply 0 retweets 0 likes
    9. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @FaizaFaria

      If Dave Herald hadn’t posted, you wouldn’t have your example, either. I can’t report a story in reverse time.

      1 reply 0 retweets 0 likes
    10. Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @kchangnyt @FaizaFaria

      The occultation data IS interesting and worth following up on. But one data point doesn’t refute everything by itself.

      1 reply 0 retweets 0 likes
      Kenneth Chang‏ @kchangnyt 27 May 2016
      Replying to @kchangnyt @FaizaFaria

      Nathan could be entirely wrong. But that’s not what people told me when I talked to them.

      4:58 PM - 27 May 2016
      4 replies 0 retweets 0 likes
        1. New conversation
        1. Kenneth Chang‏ @kchangnyt 27 May 2016
          Replying to @kchangnyt @FaizaFaria

          No one mentioned the occultation comparison. Not Amy. Not Lindley Johnson. Not the other scientists.

          1 reply 0 retweets 0 likes
        2. iDreamOfSushi‏ @FaizaFaria 27 May 2016
          Replying to @kchangnyt

          Not blaming you for the report. But the mea-culpa is getting way overdue. Even if unknowingly, you gave pseudo-science a voice.

          1 reply 0 retweets 0 likes
        3. 3 more replies
        2. New conversation
        1. iDreamOfSushi‏ @FaizaFaria 27 May 2016
          Replying to @kchangnyt

          not a single source backs up that the NEOCAM teams may be fudging numbers to get more money. Sorry, not a good excuse.

          1 reply 0 retweets 0 likes
        2. Kenneth Chang‏ @kchangnyt 27 May 2016
          Replying to @FaizaFaria

          I didn’t write NEOCam was fudging numbers to get $. Or Nathan was attacking NEOCam to help LSST, which the other side alleges

          1 reply 0 retweets 0 likes
        3. 1 more reply
        1. iDreamOfSushi‏ @FaizaFaria 27 May 2016
          Replying to @kchangnyt

          cites the 2011 paper and its derivatives. Your report did not cite one person who says Myhrvold is doing a better estimate /2

          0 replies 0 retweets 1 like
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        1. iDreamOfSushi‏ @FaizaFaria 27 May 2016
          Replying to @kchangnyt

          Myhrvold claims a 5 year old refreed publication is at best wrong, at worst fraudulent. A few hundred papers in since then /1

          0 replies 0 retweets 0 likes
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