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ILLIAC Was HAL 9000’s Granddaddy

October 18, 2018 by 42 Comments

Science fiction is usually couched in fact, and it’s fun to look at an iconic computer like HAL 9000 and trace the origins of this artificial intelligence gone wrong. You might be surprised to find that you can trace HAL’s origins to a computer built for the US Army in 1952.

If you are a fan of the novel and movie 2001: A Space Oddessy, you may recall that the HAL 9000 computer was “born” in Urbana, Illinois. Why pick such an odd location? Urbana is hardly a household name unless you know the Chicago area well. But Urbana has a place in real-life computer history. As the home of the University of Illinois at Urbana–Champaign, Urbana was known for producing a line of computers known as ILLIAC, several of which had historical significance. In particular, the ILLIAC IV was a dream of a supercomputer that — while not entirely successful — pointed the way for later supercomputers. Sometimes you learn more from failure than you do successes and at least one of the ILLIAC series is the poster child for that.

The Urbana story starts in the early 1950s. This was a time when the 1945 book “First Draft of a Report on the EDVAC” was sweeping through the country from its Princeton origins. This book outlined the design and construction of the Army computer that succeeded ENIAC. In it, Von Neumann proposed changes to EDVAC that would make it a stored program computer — that is, a computer that treats data and instructions the same.

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Hacking When It Counts: Setting Sail In A Submarine

October 17, 2018 by 44 Comments

By the early 20th century, naval warfare was undergoing drastic technological changes. Ships were getting better and faster engines and were being outfitted with wireless communications, while naval aviation was coming into its own. The most dramatic changes were taking place below the surface of the ocean, though, as brave men stuffed themselves into steel tubes designed to sink and, usually, surface, and to attack by stealth and cunning rather than brute force. The submarine was becoming a major part of the world’s navies, albeit a feared and hated one.

For as much animosity as there was between sailors of surface vessels and those that chose the life of a submariner, and for as vastly different as a battleship or cruiser seems from a submarine, they all had one thing in common: the battle against the sea. Sailors and their ships are always on their own dealing with forces that can swat them out of existence in an instant. As a result, mariners have a long history of doing whatever it takes to get back to shore safely — even if that means turning a submarine into a sailboat.

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I Ate A Robot Hamburger Before The Restaurant Went Out Of Business

October 11, 2018 by 86 Comments

The future is upon us and the robots will soon take over. Automated cars will put Uber drivers and cabbies alike out of work. Low-wage workers, like the people working behind the counter at McDonalds, will be replaced by burger-flipping robots. The entire operation of Spacely Space Sprockets, Inc. is run by a single man, pressing a single button, for four hours a day. This cartoon future is so fully automated that most people are unemployed, and all productive work is done by robots.

The first jobs to be replaced will be the first jobs teenagers get. These are low skill jobs, and when you think about low skill jobs (certainly not low-effort jobs, by the way), you think of flipping burgers. That’s where Creator comes in. They’re a culinary robotics company with a restaurant in San Francisco. They’ve been profiled by NPR, by Business Insider, and by CNBC. TechCrunch got a sneak preview proclaiming this as the future of the six dollar burger. It is a marvel of engineering prowess with a business model that I don’t think checks out. This is not the robot that will take your job, and I’m proud to say I ate a robot hamburger before the restaurant went out of business.

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This Year’s Nobel Prizes Are Straight Out Of Science Fiction

October 10, 2018 by 22 Comments

In the 1966 science fiction movie Fantastic Voyage, medical personnel are shrunken to the size of microbes to enter a scientist’s body to perform brain surgery. Due to the work of this year’s winners of the Nobel Prize in Physics, laser tools now do work at this scale.

Arthur Ashkin won for his development of optical tweezers that use a laser to grip and manipulate objects as small a molecule. And Gérard Mourou and Donna Strickland won for coming up with a way to produce ultra-short laser pulses at a high-intensity, used now for performing millions of corrective laser eye surgeries every year.

Here is a look at these inventions, their inventors, and the applications which made them important enough to win a Nobel.

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Hack My House: Running Raspberry Pi Without An SD Card

October 8, 2018 by 62 Comments

Many of us have experienced the pain that is a Raspberry Pi with a corrupted SD card. I suspect the erase-on-write nature of flash memory is responsible for much of the problem. Regardless of the cause, one solution is to use PXE booting with the Raspberry Pi 3. That’s a fancy way to say we’ll be booting the Raspberry Pi over the network, instead of from an SD card.

What does this have to do with Hacking My House? As I discussed last time, I’m using Raspberry Pi as Infrastructure by building them into the walls of every room in my house. You don’t want to drag out a ladder and screwdriver to swap out a misbehaving SD card, so booting over the network is a really good solution. I know I promised we’d discuss cabling and cameras. Think of this as a parenthetical article — we’ll talk about Ethernet and ZoneMinder next time.

So let’s dive in and see what the Preboot Execution Environment (PXE) is all about and how to use PXE with Raspberry Pi.

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Will Drones And Planes Be Treated As Equals By FAA?

October 8, 2018 by 87 Comments

Soon, perhaps even by the time you read this, the rules for flying remote-controlled aircraft in the United States will be very different. The Federal Aviation Authority (FAA) is pushing hard to repeal Section 336, which states that small remote-controlled aircraft as used for hobby and educational purposes aren’t under FAA jurisdiction. Despite assurances that the FAA will work towards implementing waivers for hobbyists, critics worry that in the worst case the repeal of Section 336 might mean that remote control pilots and their craft may be held to the same standards as their human-carrying counterparts.

Section 336 has already been used to shoot down the FAA’s ill-conceived attempt to get RC pilots to register themselves and their craft, so it’s little surprise they’re eager to get rid of it. But they aren’t alone. The Commercial Drone Alliance, a non-profit association dedicated to supporting enterprise use of Unmanned Aerial Systems (UAS), expressed their support for repealing Section 336 in a June press release:

Basic ‘rules of the road’ are needed to manage all this new air traffic. That is why the Commercial Drone Alliance is today calling on Congress to repeal Section 336 of the FAA Modernization and Reform Act of 2012, and include new language in the 2018 FAA Reauthorization Act to enable the FAA to regulate UAS and the National Airspace in a common sense way.

With both the industry and the FAA both pushing lawmakers to revamp the rules governing small remote-controlled aircraft, things aren’t looking good for the hobbyists who operate them. It seems likely those among us with a penchant for airborne hacking will be forced to fall in line. But what happens then?

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How Precise Is That Part? Know Your GD&T

October 4, 2018 by 18 Comments

How does a design go from the computer screen to something you hold in your hand? Not being able to fully answer this question is a huge risk in manufacturing because . One of the important tools engineers use to ensure success is Geometric Dimensioning and Tolerancing (GD&T).

A good technical drawing is essential for communicating your mechanical part designs to a manufacturer. Drafting, as a professional discipline, is all about creating technical drawings that are as unambiguous as possible, and that means defining features explicitly. The most basic implementation of that concept is dimensioning, where you state the distance or angle between features. A proper technical drawing will also include tolerances for those dimensions, and I recently explained how to avoid the pitfall of stacking those tolerances.

Dimensions and tolerances alone, however, don’t tell the complete story. On their own, they don’t specify how closely the geometric form of the manufactured part needs to adhere to your perfect, nominal representation. That’s what we’re going to dig into today with GD&T.

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