slide rule – Shady Characters

Shady Characters advent calendar 2023: the E-6B

December 15, 2023

Welcome to day eight of the first ever Shady Characters advent calendar! I’m counting down to Christmas by way of a collection of beautiful, clever, important, and/or outright odd calculators and calculating devices. Some come from the pages of Empire of the Sum, some are part of my Calculator of the Day series, and some will be new to the blog. I won’t manage twenty-four posts, but I do plan to hit at least one every other day. I hope you enjoy the series!

Shady Characters advent calendar 2023: Napier’s bones

December 5, 2023

Welcome to day three of the first ever Shady Characters advent calendar! I’m counting down to Christmas by way of a collection of beautiful, clever, important, and/or outright odd calculators and calculating devices. Some come from the pages of Empire of the Sum, some are part of my Calculator of the Day series, and some will be new to the blog. I won’t manage twenty-four posts, but I do plan to hit at least one every other day. I hope you enjoy the series!

Calculator of the day: the slide rule

August 18, 2023

My new book, Empire of the Sum: The Rise and Reign of the Pocket Calculator, will be published in the US this coming Tuesday, the 22^nd of August, and to mark the occasion I thought I’d start a series of posts about a few of my favourite calculators.