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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. Robotbeat 🗽 🖖🏾‏ @Robotbeat 3 Dec 2014
      Replying to @MissionC2

      @MissionC2 @nytimes @kchangnyt Waste of time. Battery electric is the future.

      1 reply 0 retweets 0 likes
    2. Kenneth Chang‏ @kchangnyt 3 Dec 2014
      Replying to @Robotbeat

      @Robotbeat @MissionC2 @nytimes Batteries getting cheap but still not good enough unless people give up SUVs, minivans, pickup trucks.

      2 replies 0 retweets 0 likes
    3. Robotbeat 🗽 🖖🏾‏ @Robotbeat 3 Dec 2014
      Replying to @kchangnyt

      @kchangnyt @MissionC2 @nytimes What's wrong with an electric SUV, minivan, or pickup?

      1 reply 0 retweets 0 likes
    4. Kenneth Chang‏ @kchangnyt 4 Dec 2014
      Replying to @Robotbeat

      @Robotbeat @MissionC2 @nytimes Too heavy, no range. Energy density of Li-ion is too low, can't scale to large vehicles. Physics, not $$

      3 replies 0 retweets 0 likes
    5. Robotbeat 🗽 🖖🏾‏ @Robotbeat 4 Dec 2014
      Replying to @kchangnyt

      @kchangnyt @MissionC2 @nytimes I am a physicist, I know physics. If vehicles can burn gasoline or diesel, then they can be battery powered.

      1 reply 0 retweets 0 likes
      Kenneth Chang‏ @kchangnyt 4 Dec 2014
      Replying to @Robotbeat

      @Robotbeat @MissionC2 @nytimes Show me the math. How many 1000s of pounds of batteries, how efficient pushing that weight?

      8:20 AM - 4 Dec 2014
      1 reply 0 retweets 0 likes
        1. New conversation
        1. Robotbeat 🗽 🖖🏾‏ @Robotbeat 4 Dec 2014
          Replying to @kchangnyt

          @kchangnyt @MissionC2 @nytimes about 2 miles per kWh, 300Whr/kg and 330kg of batteries is 200 mile range. Replaces heavy combustion engine.

          1 reply 0 retweets 0 likes
        2. Kenneth Chang‏ @kchangnyt 4 Dec 2014
          Replying to @Robotbeat

          @Robotbeat @MissionC2 @nytimes Where do you get 2 miles per kWh? Independent of weight and aerodynamics?

          3 replies 0 retweets 0 likes
        3. 5 more replies

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