Trekulator: A Reproduction of the 1977 Star Trek Themed Calculator https://hackaday.com/2025/04/21/trekulator-a-reproduction-of-the-1977-star-trek-themed-calculator/ #3dPrinterhacks #Retrocomputing #ArduinoHacks #calculator #Trekulator #3dprinted #LEDHacks #startrek #ESP32

Designing book cover or poster of B5 size and need to find out its pixel dimensions?

Check the complete B series paper size chart at multiple DPI or use our converter to calculate the pixel dimensions of any B series paper at your desired PPI/DPI - https://cssunitconverter.com/b-paper-size-in-pixels
#books #paper #calculator

I have purchased a few new #electronic devices over time, ranging from vinyl record players (decades ago) to mobile phones (months ago). But none of them hold a candle to the excitement associated with gently unpacking a new #HP #RPN #calculator and cracking open that thick #programming manual.

My choices were never the best that money could buy, just the best that I was able to afford. Nevertheless, I recall vividly those moments, despite the passage of time.

"In today's video, we'll take a look at my grandfather's vintage HP-45 #calculator from 1973"—so he opens.

As an #EE who used #HP #RPN calculators for my whole career, that word, "grandfather", hit me hard.

https://youtu.be/56nq_FNll6Q?si=m-he0vNtIriQTzhO

Just added the Ancient Greek inscriptions to my replica of the #AntikytheraMechanism. Grab your own virtual copy at

https://www.thomasweibel.ch/antikythera/

Mondphasenrechner „Meton“, weiterer Prototyp: 3D-Druck, 3 Tropfen Leim, 3 Minuten Bauzeit. So langsam wird’s was.

https://www.thomasweibel.ch/meton

The end is near!

https://www.thomasweibel.ch/meton/

@koehntopp Einen 58C habe ich auch noch auf der Liste; irgendwann wird er mich finden. Aber so schön Continuous Memory auch ist – neue Programme muss man dann halt doch mühsam eintippen und verliert die alten. Da sind die Magnetkarten des TI-59 zum permanenten Speichern (und schnellen Laden) von Programmen doch schon ne Ecke praktischer, denke ich … – Hast Du Deinen 58C noch? #TexasInstruments #ti59 #ti58c #calculator #pocketcalculator

Look what daddy got in the mail today!! A TI-59 from 1981! #TexasInstruments #ti59 #pocketcalculator #calculator

So, Projekt SR-56 vorläufig abgeschlossen. Alles funktioniert. Höchstens nochmal alles aufmachen für eine Grundreinigung innen. Und mal sehen, wie man die sichtbaren Blessuren kaschieren könnte. Vielleicht die Tasten retro-brighten? Der Batteriefach-Deckel ist 3D-gedruckt, weil‘s mit dem Original alles zu eng war. Die 1150 mAh des LiPo Akkus sind fast doppelt so viel Energie, wie die originalen NiCd Akkus! #TexasInstruments #Taschenrechner #Calculator #LiPo #restauration #sr56 #3dprinting

@aliencoremuzik
See previous post #Mathematics #Maths #Math #calculator

> "A #calculator app? Anyone could make that." Not true. A calculator should show the result of the mathematical expression you entered. That's much, much harder than it sounds.

> Google hired H.-J. Boehm, of the "Boehm garbage collector" fame. They needed an elite coder to fix #garbagecollection and concurrent #programming. He led the effort to define #cplusplus shared variable #semantics. But then they gave him an impossible task: write a calculator app

https://chadnauseam.com/coding/random/calculator-app

Showtime, witches and werewolves! Check out Meton, the virtual mechanical lunar phase and eclipse calculator!

https://www.thomasweibel.ch/meton/

I think I haven't shown my calculator here. Can you believe someone threw this in the trash? It works perfectly fine!

(And yes, as a fine arts student, it is my right and my duty to look for valuables in the trash, like a regular raccoon)

#low-tech #calculator #garbage #solar