Broadcast Engineer at BellMedia, Computer history buff, compulsive deprecated, disparate hardware hoarder, R/C, robots, arduino, RF, and everything in between.
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Snappy coroner's answers to stupid cross-examiner's questions

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"How can you be sure [the patient wasn't alive] Doctor?" "Because his brain was sitting on my desk in a jar." Read the rest

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tekvax
15 hours ago
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oh snap! he went there!!
Burlington, Ontario
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Why doesn't the TTC run trains marked with graffiti?

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ttc graffitiWhen a photo of a heavily graffiti tagged Toronto subway train was posted to Reddit on Sunday, it came as something of a surprise to the TTC. Since David Gunn's tenure as general manager in the late 1990s, the transit provider has had a strict policy of keeping heavily vandalized trains out of sight.

"It's a bit of the broken window theory," says TTC spokesman Brad Ross. "We will take trains out of service, or buses, or streetcars if it has been significantly vandalized, and the reason for that is we don't want it to become viral."

When Gunn took over as president of the New York City Transit Authority in 1984, graffiti was so widespread that some trains were coated inside and out with tags. Management had spent decades and countless dollars cleaning and periodically repainting trains.

As part of Gunn's wider rehabilitation of the New York subway, he instituted a policy of pulling tagged trains from service, even during rush hour, a concept he brought to Toronto in 1995. The theory goes that if damage and graffiti become normal for riders, it could lead to more severe acts of vandalism.

Gunn's policy hasn't eliminated graffiti on the Toronto subway, however.

"Last year we had around 70 reports. That's everything: inside trains, on vehicles, stations, all TTC property," says Brad Ross. "We don't include 'scratchiti' in that, but [it's] Sharpies and spray paint or whatever marker."

As you might expect, tagging a subway train is risky business. The third rail, the source of the high-voltage electricity used by trains, is always live and tunnels are in constant use, even after the end of scheduled service. People die trying to paint trains.

In the case of last weekend's tagged train, Ross says the incident likely occurred as a result of track work between Bloor and Eglinton stations. Instead of being kept in a fenced and closely watched yard overnight Saturday, the train was stored on the tracks somewhere near Finch station.

Staff didn't notice the damage and the train was allowed to enter service, Ross says. It was pulled and an investigation launched soon after. It took several hours to clean with solvents, but the train is now back in use on Line 1.

"People shouldn't have to look at vandalized vehicles for which they own and pay for, and so we have an obligation to ensure they are kept clean and presentable for the people of Toronto."

Photo by Peter Muzyka

Chris Bateman is a staff writer at blogTO. Follow him on Twitter at @chrisbateman.

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Cyber Tank Girl Costume #WearableWednesday #ElectronicHalloween

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becky-stern-cyber-tank-girl

If you’re curious about the rest of the costume accompanying our Bandolier of Light and Laser Dog Goggles projects, check out our tutorial for the entire Cyber Tank Girl look on the Adafruit Learning System. It links together all the electronics tutorials you need and describes the other elements that really make this costume come together.

becky-stern-tank-girl-peeking

OLYMPUS DIGITAL CAMERA


Flora breadboard is Every Wednesday is Wearable Wednesday here at Adafruit! We’re bringing you the blinkiest, most fashionable, innovative, and useful wearables from around the web and in our own original projects featuring our wearable Arduino-compatible platform, FLORA. Be sure to post up your wearables projects in the forums or send us a link and you might be featured here on Wearable Wednesday!

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piPixelMotion – Motion Detection Python Script (VIDEO) #piday #raspberrypi @Raspberry_Pi

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Clayton Lambert shared a tutorial demonstrating his piPixelMotion – Motion Detection Python Script:

piPixelMotion

Motion detection python script for the Raspberry Pi camera.

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998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

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Driving Straight with a Raspberry Pi Initio Robot @Raspberry_Pi #piday #raspberrypi

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Initio

Martin O’Hanlon’s latest project with his Raspberry Pi Initio Robot is to get it driving in a straight line!

(via raspberrypipod)

I’ve been continuing my Raspberry Pi Robot project (see previous post) and the next challenge was to create some functions to allow my robot to be autonomous.

First challenge… Drive in a straight line! Not as easy as it seems. You put both motors onto 100% power forward and it veers slightly to the right (or in my case it does!). The reason is simple the motors which drive the left and right wheels don’t turn at exactly the same rate.

What to do. Well the Initio robot chasis I have is fitted with wheel encoders which ‘tick’ when the wheels go round to show how far they have moved, so if I wanted to make the robot go straight I needed to make left and right wheels moved the same distance.

So, I turn both motors on and count the encoder ticks, if the left one is getting ahead I slow it down a bit, unless the right catches up and vice versa!

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998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

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Remote Control Cardboard Car With Raspberry Pi #piday #raspberrypi @Raspberry_Pi

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Ingmar Stapel designed a remote control cardboard car using Raspberry Pi. via raspberryipicar.com

I have continued to work on my Raspberry Pi remote-controlled car. The car now looks better and I finally much better programmed steering.

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998Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!

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