Mildly interesting
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1910 Gyro Monorail -
Link to video
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Fascinating.
The gyroscopic stabilizer is the basis for the Segway, isn't it?
Also, the tilting during curves is accomplished in modern trains by what's called "superelevating" the rail, with the outside rail being just a bit higher than the inside rail.
The Acela's route is not superelevated along most (if any) of its route. Traveling at 135 mph around curves would be uncomfortable for passengers. The builder of the train solved that problem by allowing the body of the car to tilt "into" the curve while the trucks and wheels remained level.
Link to video -
Roman Army Knife (201-300 AD); has a spoon, knife, fork, spike, spatula and pick allowing the user to even clean between their teeth after eating. It was part of the equipment of Roman legions.
This folding eating gadget has a three-pronged fork, a spoon,a spatula,a pick, a spike and an iron knife that has eroded away.
There is a hinge to allow each item to be folded out when it was needed, or folded away for ease of transporting it.
The spike might of helped in extracting the meat from snails, and the spatula in scraping sauce out of narrow-necked bottles. Some have even suggested the pick with the tiny spoon on the end could have been used to remove earwax.
Material : Silver and Iron
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Shepherds of old would count by touching their thumb to the segments of the four fingers, starting with the top of the index finger and moving down, then to the middle finger, etc.
That counted 12, and they’d keep track of how many sets of 12 they had counted with the other hand the same way.
That’s how base 12 entered our world (time of day, dozen, gross).
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We talked about this about a year ago:
Link to video
Today a grand jury decided not to charge the shooter.
https://www.click2houston.com/news/local/2024/01/03/harris-county-grand-jury-declines-to-charge-customer-who-shot-killed-robber-during-taqueria-heist/ -