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#timekeeping

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Busy day at Stonehenge as the stones are moved forward one hour

Stonehenge is one of the world's most iconic prehistoric monuments, but did you know that parts of it have been moved in modern times? This fascinating image shows a moment from the 1950s restoration efforts, but with a humorous twist—it almost looks like the stones are being adjusted for daylight saving time! Of course, no one is actually resetting Stonehenge for daylight saving time—but this real historical photo from the 1950s restoration efforts makes it look that way! The Real […]

streetartutopia.com/2025/03/09

STREET ART UTOPIA · Busy day at Stonehenge as the stones are moved forward one hour - STREET ART UTOPIA
More from STREET ART UTOPIA

Homer (not Simpson), Hesiod, and Euripides describe the beginning of Winter as being when the Pleiades, the Hyades, and Orion set just before sunrise, at the same time as Greeks hear crane calls.

When they were writing, this would have happened around the halfway point between the southward equinox and the southern solstice, same as how the Celts and Chinese reckon the seasons.

The idea of a more universal and modern calendar has been on my mind for a while.

So far, I’m thinking:
• 13 equal months, 28 days each
• 1 leap day at the end of every year and one additional every fourth year to stay in sync with the Sun
• Neutral, logical month names (no outdated history)
• One universal global time, no time zones

What do you think? Worth rethinking how we track time and time?

Continued thread

The issue here is that 28 days doesn't match up with any lunar cycles. The synodic month is a shade over 29½ days long, so any timekeeping system that synchronises with the phases of the moon will have months of 29 or 30 days.

The sidereal and draconic months are just over 27 days long; months that synchronise with those moon cycles will occasionally be 28 days long, but will more often have 27 days.

3/?

Polynesians kept time by the moon; each lunar month had a particular name and meaning corresponding to the season in which it fell, but there was no real concept of years until Europeans came along.

The Kiowa appear to have been the opposite. They kept pictorial records of history, with standard symbols to indicate summer and winter, and a picture to represent the most significant event of the season: kiowacalendars.org/calendars

The Kiowa Calendar ProjectThe CalendarsView the history of the Kiowa to in the 19th century through the calendars they kept.

1991 Elegant Wristwatch with Minimalist Design

The image displays a wristwatch, which appears to be a brand new Rolex.
It features a black and white color scheme, a prominent silver or metal bracelet, and a matching silver band.
The watch has a date function indicated by the "3" on the dial, which is also visible through the glass back of the case.
The hands and markers are in a contrasting color, likely gold, against the black background of the dial.
The bezel around the watch face appears to be made of metal with a textured pattern.
There's a logo or emblem engraved at the 12 o'clock position on the dial, but it's not clearly legible in the image.

nocontext.loener.nl/fullpage/0

#photography #illustration #madman #nocontext #sfw #Rolex #wristwatch #luxury #fashion #timekeeping #accessory #watchface #metal #jewelry #strap #bracelet #datefunction #minimalistdesign.

1970 Vintage Watch Advertisement

The image is a black and white advertisement for a vintage watch.
It features an analog clock with Roman numerals, displaying the time as 21 seconds past 7 o'clock.
The brand of the watch is not visible in this text description.

nocontext.loener.nl/fullpage/0

#photography #illustration #madman #nocontext #sfw #VintageWatch #Advertisement #Timekeeping #RomanNumerals #AnalogClock #BlackandWhitePhotograph.

1975 Flash the Time

The image appears to be an advertisement or a cover with two distinct sections.
On the left side, there is a close-up of a watch face with a visible second hand, indicating the time as 3:05.
Adjacent to the watch on the right side is a vintage photograph of a man in formal attire, wearing a tie and looking slightly upward.
The background of this photo has a pattern that resembles a woven fabric or perhaps a tiled surface.

nocontext.loener.nl/fullpage/1

#photography #illustration #madman #nocontext #sfw #vintageadvertisement #watch #formalattire #timekeeping #branding #mid-centurymoderndesign

1957 A Collection of Luxury Watches on Display

The image showcases a grouping of six luxury wristwatches, each distinct in design and color.
They are arranged side by side against a plain background, highlighting their craftsmanship and details.
The watches vary in style and functionality, suggesting an array of options for potential buyers or enthusiasts.

nocontext.loener.nl/fullpage/0

#photography #illustration #madman #nocontext #sfw #Watches #Luxury #Collection #Display #Design #Craftsmanship #Details #Variation #Style #Functionality #Options #Buyer'sGuide #Enthusiast #Timekeeping #Accessory #Brand #Retail #Trending.

"Atomic clocks are usually either ultra-precise or sturdy, but not both. Now, scientists have created a precise clock that, when put through its paces aboard a naval ship, wavered by only 300-trillionths of a second per day."

nature.com/articles/d41586-024

www.nature.comAtomic clock keeps ultra-precise time aboard a rocking naval shipThe best timepieces tend to be fragile, but a device based on iodine threads the needle between precision and practicality.

TIL that the Romans had elastic time. Much better than Daylight Savings!

"In ancient Rome, an hour was not a consistent unit of time. In the summer, it could be as long as 75 minutes – and in the winter it sometimes lasted just 45 minutes."

bbc.com/future/article/2024032

BBC · The ancient Roman alternative to daylight savings timeBy Zaria Gorvett