senooken JP Social
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senooken JP Socialはsenookenの専用分散SNSです。

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  1. zunda ? nはおまけ :green_dango: (zundan@mastodon.zunda.ninja@mastodon.zunda.ninja)'s status on Saturday, 22-Dec-2018 16:31:52 JST zunda ? nはおまけ :green_dango: zunda ? nはおまけ :green_dango:

    いつか確認しなくちゃと思ってた光ファイバ内の光速、200,000 km/secってWIkipediaに書いてあった。　https://en.wikipedia.org/wiki/Optical_fiber#Index_of_refraction 石英の屈折率をざっくり1.5と思っちゃって良いのね。

    In conversation Saturday, 22-Dec-2018 16:31:52 JST from mastodon.zunda.ninja permalink
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senooken JP Social is a social network, courtesy of senooken. It runs on GNU social, version 2.0.2-beta0, available under the GNU Affero General Public License.

Creative Commons Attribution 3.0 All senooken JP Social content and data are available under the Creative Commons Attribution 3.0 license.