Black boxes on planes are actually bright orange because the person who invented them was colorblind.
https://media.mstdn.social/media_attachments/files/113/324/776/663/337/114/original/0fb0616be8945886.png
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.