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Galileo's pendulum

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Galileo's pendulum

Old 23rd Feb 2015, 00:19
  #41 (permalink)  
 
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This the boy, LR? Word around the estate was there was great wailing and gnashing of teeth when they let the chandler and the lamplighter go.

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Old 23rd Feb 2015, 07:12
  #42 (permalink)  
 
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like this ??

https://www.youtube.com/watch?v=LFuYIi5-igc
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Old 23rd Feb 2015, 10:05
  #43 (permalink)  
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A few rare minutes, occurring at a rate of about eight per decade, actually contain 61....'

And synchronising the computers at the control centre, the many tracking stations, the external facilities - and yes, the many orbiting spacecraft - in adding the extra second, when I was at work, was a nightmare.

The only time you'd see a digital clock readout display 55...56...57...58...59...60...01...02...03

(followed quite often by the ringing of alarms and people being called in from New Year's Eve parties to fix the problem).
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Old 23rd Feb 2015, 23:05
  #44 (permalink)  
 
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Loose Rivets regarding chandelier in Biltmore.

Galvanic corrosion have showed to stress constructions made before scientists realised the chemestry, and that's not that long ago!
The major monument of my hometown is only(?) 150 year old and showed accidentially to suffer hard of galvanic corrosion between the bronze pieces of wich the statue is made and the iron bolts used to span the pieces together :-o
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Old 23rd Feb 2015, 23:45
  #45 (permalink)  
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Um . . . that's the one.

I guess there were several reasons such an item could have been on the cusp of disaster. * Seems hard to believe in a house that had a swimming pool and bowling ally in the basement.

I went back the next day for the extended walk-round it was so stunning.

DC electrics took up one main room with one wall made of Ebonite and covered in brass switch gear. Batteries were next door but too dodgy to go in.

AC was made down in the village. Far too risky, these curly amps, to have near the house.

One man, 1$ a day. 2$, if you'd got a donkey.


What got me was that our man died of appendicitis 14 years later in a NY hospital. All that, and you go and die. So darned annoying.



*Electrolysis is still a problem. In the little house I'm staying in I see iron nails rotting where they're holding copper GAS PIPE to an external wall. What'er they thinking?
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Old 24th Feb 2015, 09:53
  #46 (permalink)  
 
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You mean there's Foucault there?
Must be. Might explain the Eco. (See what I did there?)
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Old 24th Feb 2015, 12:36
  #47 (permalink)  
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Thinking about the original question at the start of tis topic - anyone who doesn't understand how counting rythm works has neither played in a band nor done military service...


... Left. Left. Left, Right, Left!


Even the bloody Romans could achieve perfect timing.
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Old 24th Feb 2015, 13:11
  #48 (permalink)  

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Remember reading and interview with an F1 driver (Jackie Stewart?) years ago. He claimed that he could tell his lap time within a couple of tenths of a second. Of course, that may have been because he knew roughly what his time would be, and knew if he had done a fast or slow lap.
It's amazing what we can train our brains to do with awesome accuracy.

Talking of Racing Drivers of that era, I remember a Graham Hill story which illustrates the same. In an early attempt at in-car video (would have been wet film in them days) he commentated a lap at Brands Hatch whilst driving it.

When the film was processed, it turned out that the audio channel (or whatever) hadn't recorded, so no commentary! By the time that was discovered, Hill was at the other end of the country, or even out of it.

To solve the problem, apparently he asked what the lap time had been, and proceeded to record a perfectly matching commentary - gear changes, braking, corners etc - without seeing the film!

Respect!
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Old 24th Feb 2015, 13:42
  #49 (permalink)  
 
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They probably said that in Roman though Mr Blacksheep.
Sinistro. Sinistro. Sinistro, Dextro, Sinistro!
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Old 24th Feb 2015, 14:09
  #50 (permalink)  
 
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Sinistro. Sinistro. Sinistro, Dextro, Sinistro
That's Left. Left. Left. Right. Left. going backwards, is it?
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Old 24th Feb 2015, 15:48
  #51 (permalink)  
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Galileo's pendulum. Is that a euphemism?
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Old 23rd Jun 2016, 15:23
  #52 (permalink)  
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Thought Mr D might be interested in this update on the Antikythera Device. Link to the main paper is in the article.

My question is how such a highly developed level of technology could be totally lost, not even mentioned in writing let alone in surviving tomb items, such that it took nearly 2000 years to be reinvented.....

Secrets of the Antikythera Mechanism - The Atlantic
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