TIL the Passemant astronomical clock in Versailles has shown the correct date, time, moon phase, planetary alignment, etc (accounting for leap years ) from 1750 and can display through 9999. en.chateauversailles.fr Submitted by kitkatbloo t3_z1r4ps on November 22, 2022 at 11:23 AM in todayilearned 34 comments 2,169
DrugChemistry t1_ixctr9a wrote on November 22, 2022 at 2:09 PM Reply to comment by iamPendergast in TIL the Passemant astronomical clock in Versailles has shown the correct date, time, moon phase, planetary alignment, etc (accounting for leap years ) from 1750 and can display through 9999. by kitkatbloo Ohhhhhh Permalink Parent 2 Der_Missionar t1_ixerhdp wrote on November 22, 2022 at 9:59 PM Yes, quartz crystals which have a very specific resonant frequency which can then be used to keep time. Permalink Parent 1
Der_Missionar t1_ixerhdp wrote on November 22, 2022 at 9:59 PM Yes, quartz crystals which have a very specific resonant frequency which can then be used to keep time. Permalink Parent 1
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