#sliderule

Buzz Aldrin, with pipe and slide-rule, on Apollo 11

Slide rules and book of mathematical tables and formulas. How we did math before the invention of the electronic digital calculator.

New Hamilton Khaki Aviation Converter Automatic Chronograph, pilot’s watch with circular slide-rule. 🔥🔥🔥 The model has a 44 mm steel or PVD steel case and is equipped with the H-21 caliber, ETA7750 base, with silicon hairspring and 60-hour power reserve. 💰 From 1,845 Dollars . Novo Hamilton Khaki Aviation Converter Automatic Chronograph, relógio para pilotos com régua de cálculo circular. 🔥🔥🔥 O modelo possui uma caixa de 44 mm em aço ou aço PVD e é equipado com o calibre H-21, base ETA7750, com espiral de silício e reserva de marcha de 60 horas. 💰 A partir de 1.845 Dólares • • #hamilton #hamiltonwatch #hamiltonkhaki #pilotwatch #hamiltonkhakiaviation #sliderule #sportwatch #relogioserelogios https://www.instagram.com/p/CFmjn3SFKjN/?igshid=ybk243j89bt1

To provide meaningful architecture is not to parody history, but to articulate it. Vintage Arithmo with radium burn and double domed crystal 📐 #amsterdamvintagewatches #juvenia #juveniaarithmo #sliderule (bij Amsterdam Vintage Watches) https://www.instagram.com/p/BsYItYmgCpj/?utm_source=ig_tumblr_share&igshid=1gaesiwjmx21z

I have no idea what year it is from, but I know how to find square roots.

Regram from @cpl.watches - In honour of Helmut Sinn, founder of one of my favourite brands, who passed away on Feb 14 at the age of 101 _______________________________________________ #sinn #sinnnavitimer #navitimer #sliderule #pilotwatch #sinn903 #dailywatch #wruw #watches #watch #calibre61 @sinn_spezialuhren #reverse🐼 #🐼dial #flecto - #regrann

Robot of the day: October 14, Inktober

That's one big slide rule! #blackandwhite #selfie #physicslab #ceeohceecee #sliderule #math #mathnerd #bohemian #college #geo (at Central Oregon Community College)