Retrotechtacular: History of the U.S. Antiballistic Missile Systems

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On this installment of Retrotechtacular we’re taking a look at the history of the United States Antiballistic Missile System. The cold war was a huge driver of technological development, and this missile defense is a good example. At its most basic this is a radar system capable of tracking objects in three dimensions. It utilizes separate transmitters and receivers … Read the rest

Retrotechtacular: The Fourier Series

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Here’s a really quick video which takes a different approach to understanding the Fourier Series than we’re used to. If you’re a regular reader we’re sure you’ve heard of the Fourier Series (often discussed as FFT or Fast Fourier Transform), but there’s a good chance you know little about it. The series allows you to break down complex signals (think … Read the rest

Retrotechtacular: flying foot-soldiers are coming for you (sixty years ago)

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Pictured above is a remarkable piece of experimental technology from the 1950′s that never ended up going anywhere. The Hiller VZ-1 Pawnee is a single-rider vehicle that was supposed to provide a tactical advantage to US forces. The Office of Naval research spent a couple of years developing the aircraft, wich uses two rotors mounted inside the base of the … Read the rest

Retrotechtacular: Mechanical targeting computers

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The device that these seamen are standing around is a US Navy targeting computer. It doesn’t use electricity, but relies on mechanical computing to adjust trajectories of the ship’s guns. Setting up to twenty-five different attributes by turning cranks and other input mechanisms lets the computer automatically calculate the gun settings necessary to hit a target. These parameters include … Read the rest

Retrotechtacular: Donner 3500 portable analog computer

retrotechtacular-donner3500

What if we told you we had a computer you can take with you? What if it only weighed 28 pounds? This is a pretty hard sell when today you can get a 1.5 GHz quad-core processor packing computer to carry in your pocket which weighs less than 5 ounces. But back in the day the Donner 3500 was something … Read the rest

Retrotechtacular: How a watch works

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Anyone who has ever tried to keep time with an electronic project will have respect for a timepiece that stays accurate over the span of months or more. We think it’s even more respectable when it comes to mechanical watches. This video was made by the Hamilton watch company back in 1949 to explain the basic processes behind a precision Read the rest

Retrotechtacular: The differential

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Any video that starts off with two minutes of motorcycle formation riding has got to be good. If the grainy black and white video didn’t tip you off that this was made in a different time the helmetless riders standing on the seats of moving motorcycles certainly would have. But there is a purpose to this exposition. A single line … Read the rest