Kyle Rankin @kyle@librem.one

@Mayana You should! And the cost of a razor is more than made up by the incredibly low cost of the shaving soap and blades. A basic Tech would be a great way to learn proper technique, and you might be surprised at how affordable some of these other blades can be at antique and thrift stores.

@PublicLewdness Basically an old, used car.

Cars continue to copy the smartphone business model, now have mandatory pre-installed services and apps (and the tracking that comes with them): #privacy https://www.thedrive.com/news/gm-makes-1500-onstar-subscription-mandatory-on-gmc-buick-cadillac-models

You have to hand it to them... #privacy https://www.engadget.com/amazon-one-palm-payment-whole-foods-california-195712253.html

The biggest challenge with filing expense reports is deciding which ⁨#antique⁩ adding machine in my collection to use to add up receipts. Today's winner is an RC Allen model 75. ⁨#vintagecomputers⁩

@mrdoornbos I have that R C Allen model! Very nice hand crank adding machine with subtraction feature. It is what I would reach for to balance a checkbook if I needed a paper trail.

@jonny See my previous thread to see a normal division.

@yaelwrites Eh I've found different people find different words offensive so the best course is to attempt to be respectful of what bothers others once they let you know.

Here's a bonus video of what happens when you divide by zero on an electro-mechanical calculator. #infiniteloop

My Marchant Silent Speed is all cleaned up and ready to go with the rest of my collection! #antique #calculator

Here's another view of the same operation from the back so you can see more of the gears move.

It's worth mentioning that this is doing long division via repeated subtraction completely mechanically, just using the electric motor to power the gears. If you watch closely you can see it detect underflows, increment, and then shift right to the next digit.

Success! A little cleaning and lubrication freed up the stuck registers enough to do long division. Here's the Marchant Silent Speed approximating Pi. #antique #calculator

The Marchant Silent Speed ⁨#antique⁩ ⁨#calculator⁩ restoration begins! Here's hoping this is as far as I have to take it apart today.

@EdS I relied on John Wolff's documentation when I was attempting to repair a previous Silent Speed. Incredibly complex machines. The official service manual just had drawings and it was handy to see high-quality pictures of the mechanisms.

Anyone interested in mechanical engineering should definitely check out the *analog* carry mechanism in these Marchant calculators that relies on planetary gears. These Marchants are arguably the high water mark for electromechanical calculator engineering.

Check out the latest addition to my ⁨#antique⁩ ⁨#calculator⁩ collection! This is a Marchant "Silent Speed" 8D from 1940, a fast electromechanical analog calculator that can even infinite loop if you divide by zero. I'll be refurbishing it this weekend to make it fully functional.

@hehemrin While a lot of it is custom and expensive work, the demand is high enough you are starting to see aftermarket kits for popular vehicles. For instance this company has a series of kits for vintage porsche and VW models: https://www.evwest.com/catalog/index.php?cPath=40