# chronometers
why we simply made sure our marine chronometers were well oiled and set to greenwich mean time, and always kept a spare sextant and artificial horizon around
I am officially one of The Ancients, Keeper of Knowledge of the Before Time
June 4, 2025 at 3:54 AM
@gianttourtiere.bsky.social Can I start issuing the crew jellyfish instead of their fleet-approved wrist chronometers
March 20, 2026 at 2:39 PM
*chuckling with rage

Me: “This joker thinks nautical almanacs had the same impact as chronometers. What a lunatic!”

Nurse: let’s get you back to your room
July 9, 2025 at 8:30 PM
Analog chronometers were retro in the 23rd century.
#TOSSatNight
June 22, 2025 at 4:47 AM
The Nelson Monument has been uncovered after a brush and scrub up. The historic Time Ball dating back to 1853 will once again be dropping at precisely 1pm to allow sailors to set their ships' chronometers.

@edinburghwh.bsky.social
July 26, 2025 at 8:23 PM
6/x FitzRoy's own work on that voyage was extraordinary: scores of charts, coastal views and harbour plans, many still in use a century later. He also took 22 chronometers to fix longitudes worldwide, and paid for an extra survey schooner out of his own pocket.
September 28, 2026 at 8:10 AM
Ever since those new-fangled chronometers replaced dead reckoning, no navigator has been worth their salt.
August 19, 2026 at 3:11 PM
Kiwi Trekkies, set your chronometers! #TrekSky
March 31, 2024 at 9:46 PM
No one who has ever had to feed an animal doubts they are nature's most atom-accurate chronometers.
August 2, 2026 at 12:17 PM
Chronometers are malfunctioning! How has it been 20 years since “In a Mirror, Darkly” aired? Infinite thanks to the #StarTrekEnterprise cast and crew for making it such a ride, a highlight of this fan’s career. 🖖 Enjoy some behind-the-scenes memories from the set!
April 22, 2025 at 9:51 PM
#BlueSkyArtShow #vertical
Time ball tower, built in the 29th C. Used to drop a ball at 1pm each day so that ships could calibrate their chronometers. Working today but by remote control. South Australia
October 18, 2025 at 9:27 AM
They weren’t all riveters. My mother worked at Hamilton Watch Company during the war, making chronometers for the Navy.
March 30, 2025 at 6:31 PM
They replaced the chronometers in the remaster. #TosSatNight
March 16, 2025 at 4:48 AM
"Quite frankly, Mr. President, we can clean their chronometers."
November 28, 2024 at 12:17 AM
Set your chronometers! #starwars #hasbro #hasbropulse
June 10, 2025 at 8:43 PM
Speaking of the Swiss, before WWII that's where we got all our marine chronometers - the only way to know your longitude at sea back then. The USG needed thousands, Hamilton invented a better, easier to make version, and made almost 9000 for the Navy.
February 11, 2025 at 8:24 PM
Conodonts! Eldritch chronometers and thermometers! With Terrifying Not-Teeth!
Conodonts are not just great biomarkers (the Mesozoic is defined by the first appearance of Hindeodus parvus), but paleothermometers as well. I'd published evidence for lethal surface water temperatures from early Triassic lingulids, but I didn't even believe it until conodont isotopes confirmed it.
Lethally Hot Temperatures During the Early Triassic Greenhouse
Global warming in the Early Triassic was so severe that equatorial latitudes were uninhabitable for many plants and animals.
www.science.org
February 20, 2026 at 11:24 PM
Somebody call Hamilton & see if they have a cache of naval chronometers in a back room
June 22, 2025 at 9:41 PM
Sextants, parallel rulers and chronometers FTW too ...
March 13, 2026 at 6:31 AM
yeah it's a hoax invented in 1761 to sell more marine chronometers
October 26, 2023 at 8:49 PM
#StarTrekTNG "The Forgotten"

Worf learns that Ensign Sito Jaxa, presumed dead, may still be alive. After Daylightyear Saving Time, Guinan must manually set the chronometers on all of the replicators forward one hour. Transporter chief: Neneh Cherry.
March 11, 2025 at 1:13 AM
This blog about Emily Kelsall is fascinating.

Another woman whose history is entwined with the parliament buildings is Elizabeth Dent. She ran a major business specialising in clocks and chronometers. In 1861 she won the prestigious contract for the maintenance of Big Ben.
March 3, 2025 at 1:31 PM
(Not) Odo and Clean Their Chronometers 😜
December 6, 2025 at 11:15 PM
I just want my analog chronometers back if you’re gonna do this nonsense 😭
September 29, 2025 at 9:30 PM