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red_rooster :coolified:Today is world metrology day. At the 20th May 1875 the meter convention was signed by 17 states, so exactly 150 years ago. For people that that after 150 years still think using imperial units is a nice idea, just search the internet for Mendenhall Order. So, using imperial units means using the metric system with very odd conversion factors <a href="https://sueden.social/tags/meter" class="mention hashtag" rel="nofollow noopener" target="_blank">#meter</a> <a href="https://sueden.social/tags/meterkonvention" class="mention hashtag" rel="nofollow noopener" target="_blank">#meterkonvention</a> <a href="https://sueden.social/tags/bipm" class="mention hashtag" rel="nofollow noopener" target="_blank">#bipm</a> <a href="https://sueden.social/tags/metrology" class="mention hashtag" rel="nofollow noopener" target="_blank">#metrology</a> <a href="https://sueden.social/tags/meterconvention" class="mention hashtag" rel="nofollow noopener" target="_blank">#meterconvention</a> <a href="https://usma.org/laws-and-bills/mendenhall-order#locale-notification" rel="nofollow noopener" translate="no" target="_blank">https://usma.org/laws-and-bills/mendenhall-order#locale-notification</a>

RTN"PTB: 20 Jahre im Dienst der reinen Luft""Erfolgreiche Zusammenarbeit zwischen Physikalisch-Technischer Bundesanstalt und Umweltbundesamt – Ozon wird mehr in den Fokus rücken. Eine Presseinformation der Physikalisch-Technischen Bundesanstalt (PTB)."<a href="https://www.raumfahrer.net/ptb-20-jahre-im-dienst-der-reinen-luft/" rel="nofollow noopener" translate="no" target="_blank">https://www.raumfahrer.net/ptb-20-jahre-im-dienst-der-reinen-luft/</a>27.2.2024<a href="https://chaos.social/tags/Absorptionsquerschnitt" class="mention hashtag" rel="nofollow noopener" target="_blank">#Absorptionsquerschnitt</a> <a href="https://chaos.social/tags/BIPM" class="mention hashtag" rel="nofollow noopener" target="_blank">#BIPM</a> <a href="https://chaos.social/tags/Erde" class="mention hashtag" rel="nofollow noopener" target="_blank">#Erde</a> <a href="https://chaos.social/tags/Klima" class="mention hashtag" rel="nofollow noopener" target="_blank">#Klima</a> <a href="https://chaos.social/tags/Klimawandel" class="mention hashtag" rel="nofollow noopener" target="_blank">#Klimawandel</a> <a href="https://chaos.social/tags/Ozon" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ozon</a> <a href="https://chaos.social/tags/Photometer" class="mention hashtag" rel="nofollow noopener" target="_blank">#Photometer</a> <a href="https://chaos.social/tags/PTB" class="mention hashtag" rel="nofollow noopener" target="_blank">#PTB</a> <a href="https://chaos.social/tags/Stratosph%C3%A4re" class="mention hashtag" rel="nofollow noopener" target="_blank">#Stratosphäre</a> <a href="https://chaos.social/tags/UV" class="mention hashtag" rel="nofollow noopener" target="_blank">#UV</a>

Dr. Juande Santander-Vela<a href="https://cosocial.ca/@timbray" class="u-url mention" rel="nofollow noopener" target="_blank">@timbray</a> thanks! Even having worked on some of the timing requirements for the Square Kilometre Array Observatory with respect to software, I did not know a couple of things here… but I’m very glad I was well aware of most of the things in the talk!<a href="https://astrodon.social/tags/SKAO" class="mention hashtag" rel="nofollow noopener" target="_blank">#SKAO</a> <a href="https://astrodon.social/tags/SquareKilometreArrayObservatory" class="mention hashtag" rel="nofollow noopener" target="_blank">#SquareKilometreArrayObservatory</a> <a href="https://astrodon.social/tags/Timing" class="mention hashtag" rel="nofollow noopener" target="_blank">#Timing</a> <a href="https://astrodon.social/tags/UTC" class="mention hashtag" rel="nofollow noopener" target="_blank">#UTC</a> <a href="https://astrodon.social/tags/TAI" class="mention hashtag" rel="nofollow noopener" target="_blank">#TAI</a> <a href="https://astrodon.social/tags/BIPM" class="mention hashtag" rel="nofollow noopener" target="_blank">#BIPM</a>

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