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For this week's MM theme, I again, thought of an old friend who's been with me for decades. We spent a lot of nights solving endless problems together and she always got me through each one of them. Things have changed a lot since but I decided to keep her all these years. I'm sure someone out there might still have a slide rule hiding somewhere.
GROUP: MACRO MONDAYS
THEME: NUMBERS AND LETTERS
SUBJECT: A LOYAL CALCULATOR
(less than 2" horizontally)
Original Odhner Moder 127 with TI-30XllB hand held scientific calculator and K&E 4081-3 LogLog Duplex DeciTrig Slide Rule
Well it was much too cold for my bubble mixture to make some decent bubbles out there even though it was -28C feels like -40C (for those who use the F scale that is 18F feels like 40F according to the online calculator). Instead, I brought out my trusty cookie cutters dipped them in the mix and the best I could do is turn my heart upside down to get some frost forming.
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Here is one of my potential Macro Monday captures taken today for the theme this week that is "Back in the Day".
This was my grandfather's calculator he used for work and for doing taxes. Can add, subtract and multiply.
Captured here at f/32, ISO 100 for 30 seconds.
The numbers I entered into the mechanical machine is the 'date' around when these were made.
The Lightning Calculator Company of Grand Rapids, Michigan. Manufactured 1900-1925. (For a description: collection.maas.museum/object/372791)
This model belonged to and was well used by my grandfather. Stylus may not be original but has been with the machine since at least the late 1940s. Still works perfectly.
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The stars aligned for this one to come off, well actually the sun and Marsh Lane cutting. Periodically I use a sun position calculator and align with the local railway lines to hunt out any interesting lighting opportunities. One such opportunity was here, in mid July at about 8:30pm the setting sun aligns perfectly with Marsh Lane cutting and at just the right height to illuminate the tunnel. Fortunately a regular Yorkshire Dales to Hunslet Stone train is timed to pass just after 8:30pm, so all the elements came together; clear skies, sun position, a running train and finally having the time to spare. It was a close run thing though, this working passed at 8:39pm and the sun is already moving off centre, to show how small this window of opportunity is, I waited a few more minutes for the following Trainspennine Express 185 and the sun had almost completely gone.
The working is 6D77 the 16:43 Arcow Quarry to Hunslet loaded stone, with 66783 "The Flying Dustman" Biffa livery (Ex EWS 66058).
8:39pm 17th July 2018.
A young girl uses her calculator to add up the families sales for the day outside the family shop in Chinatown, Binondo District, Manila, Philippines.
Project "my first..." : CALCULATOR
commodore 797D Solid State
Electronic Calculator
1979
GROUP: MACRO MONDAYS
THEME: BACK IN THE DAY
I have no idea why I'm still hanging on to this calculator, my very first one. I know it has helped me a lot in passing exams that I could have not done with a slide rule!
The calculator that got me through engineering school some 40 years ago. Just like back then, it gives the right answer most of the time.
which of these two calculators is over 30yo. i shall give the right answer once we've accumulated enough guesses