thearclampman.bsky.social
Collector and researcher of lighting technology from medieval to recent.
History of the electrical industry especially during the carbon lamp era and our contemporary changes in decarbonisation
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I don't know what to make of this.
Looking at a new phone camera details
It seems to have a branded sensor but then Moto AI. will do it's stuff so you will not get what you take but what the AI decides it wants to show you.
I wonder if it will turn pigs ears into purses?
I doubt it has OFF option
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I was most impressed seeing Victory's bottom on a recent visit (keel and hull). The rudder hinge was a whole tree trunk size beam.
I must research how they fix the beams together to construct a hull that can withstand stormy seas.
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Fantastic carving.
I just wish I could read it as each detail would contain some meaning when it was created.
I also wonder how much is original and how much is recreated.
I recall the SS Great Britain returning to Bristol as a rusty shell.
Now complete with all the cabins
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Ibuprofen has antiinflammatory effect so it reduces swelling and pressure. I just wished that I knew this when I put my back out many years ago.
Lifting boxes of books but one was full of clay filled glossy paper in art books. Took a week to recover and twinges for months. More careful now
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This is a bygone era where sailing ships moored at the quay side and more modern steam tugs moved them
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However I was more pleased with the 1905 annual of the cooperative wholesale society. A whole 10 pence less but full of the most wonderful engravings. Over 30 pages of all of their factories and depots
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It looks like a child's learning so no earth shattering historical revelations.
Probably copied from a blackboard in rote learning.
But..
At nearly 130 years old it has done well to survive and nearer the end are a few recipes.
I do like the sound of plum cake.
One day someone may try to make it
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Perhaps the lack of chips over the past months was the cause.
They were excellent
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Of course the brightest find was this carbon arc searchlight.
Unfortunately no history is known about this as it was just obtained to dress the ship on which it was mounted.
Zoom in on the background to see the cover built over HMS Victory with her front mast protruding out of the top
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I was pleased to see this dynamo.
They don't make them like this anymore as this was the era when could were wound round wood bobbins.
Zoom in on the picture to see the woodworking craftsmanship and fine finishing
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2/2 Then I had to look up an original photograph taken in 1902 of a carbon arc lamp post taken in New York.
Not quite the same and I have to confess that I like the chunkier modern one more.
However nothing can beat the historic one even if the photo is the only evidence of it's existance
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I have an allegation of the theft of half a candle.
I could dig it out for you tonight but maybe not tonight as I would need to burn the candle at both ends
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Should be easy enough to find but probably only from an online supplier.
If not then time for a new higher resolution projector. I still have my original digital camera with 640 by 480 pixels but never use it these days
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In 1875 we had changed to kerosene from candles and whale oil.
Polished brass lamps evidenced throughout the ship
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Naked lights and explosives are often a deadly combination and many ships have been lost when candles have been taken into the magazines.
Solved by having the light outside and a sealed glass window
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Always something to discover. It was good to see this plug scuttle as I had read a historic account by one officer (on a similar ship) of needing to light a candle in order to dress for dinner and that these were too close to the water line to open when at sea
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And reading a few pages from this thick tome of archaeological reports. I wanted to take it home but discovered the photocopiers copied the few pages that I wanted.
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A little walk later and I saw the plaque. Then a slightly longer walk all over and around HMS Victory and the Mary Rose before returning a library book
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Excellent service and I walked out with a tested and carefully wrapped 200 Watt reflector spotlight, a Kosnic LED 78mm double ended and an as yet unidentified LED.
A bright end to the day.
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And the visit ended with Turner's depiction of the changing technology in the #maritime world where a paddle steamer tows the Temeraire on her final voyage to be scrapped www.nationalgallery.org.uk/paintings/jo...
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I always enjoy Joseph Wright of Derby www.nationalgallery.org.uk/paintings/jo...
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During my walk round the maze of galleries I did sit down to watch a big screen projection of bikini atol underwater atomic bomb tests. It made me feel hungry so a meal on the south bank before going to the national gallery to see some old masters from the candle lit era
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I had an interview later and I enjoyed the event but the panel looked tired as they had done six other interviews before mine.
Afterwards I went for an urban walk and ended up inside Tate modern where a neon bulb on a shelf was some modern art.
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Lyrics need to sound good but carbon does not melt and green light is produced by mercury vapour lighting.
Must check out some others
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I am after PV where each circular disk is a wafer from a silicon crystal.
So the encapsulation had six or eight wired together inside
A lot of the thermal ones could easily be home made from tubes or radiators in boxes.
I may see one on a canal boat top as they were early adopters.
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So easy to visit as I got on Elizabeth line train one end and home at the next end. It took longer than a change at Paddington but I was able to read while riding.
The whole museum layout is a convoluted route but sailortown is so narrow
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It was the same when I was teaching.
A few little items to use in science.
Formal route of identify from educational supplier catalogue. Fill in a request form. Get it signed off and forward to admin who would only order once a week and then wait for delivery.
Not practical for lesson next week
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Are you paying these fees out of your own pocket or can you claim them as expenses?