Prison is a scary place, very much by design. It’s a place you end up when convicted of crimes by the judicial system, or in some cases, if you’re merely awaiting trial. Once you go in as a prisoner, general freedom and a laundry list of other rights are denied to you. New York City is the latest in a long list of municipalities looking to expand that list to include a ban on inmates receiving physical mail.
To achieve this, prisons across the US are instead switching to digital-only systems, which would be run by a private entity. Let’s look at the how, what, and why of this contentious new idea.
Continue reading “Ban On Physical Mail Slated For NYC Jails, Which Could Go Digital Instead” →
One problem with building things using state-of-the-art techniques is that sometimes those that look like they will be “the next big thing” turn out to be dead ends. Next thing you know, that hot new part or piece of software is hard to get or unmaintained. This is especially true if you are building something with a long life span. A case in point is the New York City subway system. Back in the 1990s the transit authority decided to adopt IBM’s new OS/2 operating system. Why not? It was robust and we used to always say “no one ever got fired for buying IBM.”
There was one problem. OS/2 was completely eclipsed by other operating systems, notably Windows and — mostly — has sunk from the public view. [Andrew Egan’s] post covers just how the conversion to a card-based system pushed OS/2 underground all over the Big Apple, and it is an interesting read.
Continue reading “The OS/2 Operating System Didn’t Die… It Went Underground” →
The year is 1894. You are designing a train system for a large city. Your boss informs you that the mayor’s office wants assurances that trains can’t have wrecks. The system will start small, but it is going to get big and complex over time with tracks crossing and switching. Remember, it is 1894, so computing and wireless tech are barely science fiction at this point. The answer — at least for the New York City subway system — is a clever system of signals and interlocks that make great use of the technology of the day. Bernard S. Greenberg does a great job of describing the system in great detail.
The subway began operation in 1904, well over 30 years since the above-ground trains began running. A clever system of signals and the tracks themselves worked together with some mechanical devices to make the subway very safe. Even if you tried to run two trains together, the safety systems would prevent it.
On the face of it, the system is very simple. There are lights that show red, yellow, and green. If you drive, you know what these mean. But what’s really interesting is the scheme used at the time to make them light.
Continue reading “Low Tech High Safety And The NYC Subway System” →
New York City’s L train carries about 400,000 passengers a day, linking Manhattan and Brooklyn and bringing passengers along 14th Street, under the East River, and through the neighborhoods of Williamsburg, Bushwick, Ridgewood, Brownsville, and Canarsie. About 225,000 of these passengers pass through the Canarsie Tunnel, a two-tube cast iron rail tunnel built below the East River between Manhattan and Brooklyn in 1924. Like many other New York City road and subway tunnels, the Canarsie Tunnel was badly damaged when Hurricane Sandy’s storm surge inundated the tubes with million of gallons of salt water. Six years later, the impending closure of the tunnel is motivating New Yorkers to develop their own ambitious infrastructure ideas.
Continue reading “The Pontoon Bridge Being Floated As An NYC Transit Fix” →
New York is coming on strong as a hardware epicenter — exciting hardware culture can be found at every turn. Tomorrow, we’re bringing food and fun to one such event, the monthly MakeIt NYC meetup.
MakeIt is hosted by PCB.ng, a Brooklyn based PCB manufacturer and board stuffer whose mission it is to make electronics manufacturing available to everyone. [Sophi Kravitz] will be on hand and speaking about Hackaday.io and the Hackaday Prize. There are many other talks lined up, including The LED Artist (amazing work if you haven’t seen), Microchip who will show off their new Chip-KIT Wi-Fire, Thimble (an electronics subscription service delivering monthly hardware kits), and Botfactory’s Squink, a desktop electronics manufacturing machine.
In addition to the planned talks we’re always interested in seeing the projects you’re working on. Bring along anything that fits in a pocket or a backpack. We’ll see you there!
What’s not to love about a hackathon? The junk food and caffeine that fuel the weekend; the highs that come with success and the lows that come when the blue smoke is released; the desperate search for inspiration as the clock ticks away; nerve-wracking pitches to the judges, hoping against hope that everything works in the demo. Hackathons are the contact sport of the hacker world, bringing in top competitors and eager upstarts, and when done well you just might attract interested “civilians” and other newbies that will catch the hacking bug from what they witness.
Such was the scene at the Tech Valley Center of Gravity in Troy, NY over the last weekend of January. New for 2016, the CoG is hosting a series of four hardware hackathons this year, each with a different theme. This event’s theme was “Internet of Things”, and the call went out to any and all to come compete for bragging rights and over $1,000 in prizes. Incentives to compete included some big name corporate sponsors, like AT&T, and judging and mentoring provided by the likes of SparkFun’s [Jeff Branson]. There was also a steady stream of food and drink, saturation coverage by local media outlets, and your humble Hackaday writer and his son, who made the trip up to Troy with a small passel of Hackaday swag and a curiosity to see how the CoG has fared since our last visit at the grand opening of their glorious new home. We were not disappointed.
Continue reading “This Is How You Run A Hackathon: Tech Valley Center Of Gravity” →
Big-name corporate sponsors, top-notch judges and mentoring, 36 hours to play in a huge new hackerspace, and all the Cheetos and Red Bull you need to stoke the creative fires. Sounds like a hackathon, and it’ll roll into The Tech Valley Center of Gravity in Troy, New York next month. And from the look of it, it’s going to be a big deal. You should be there.
You might recall the TVCoG from a story we did this summer on the grand opening of their amazing newly renovated space in downtown Troy. Occupying an entire city block in a historic department store building and housing not only a huge hackerspace but a tech company incubator with manufacturing capabilities and a STEM outreach space, the CoG now has the room to reach out into the community and host big events. The hackathon scheduled for January 30 and 31 and is only the first of four events planned for 2016. This one has the theme “Internet of Things” and will feature SparkFun’s Jeff Branson as mentor and judge.
Here’s a call to arms for Hackaday readers in the northeast: let’s pack this hackathon and make it huge. There’s already a bunch of Jolly Wrencher stickers scattered all over from our last visit, so you’ll feel right at home. Head over to the TVCoG site and sign up for this one. We’d really like to see HaD take home bragging rights. And you can be sure we’ll be covering the event and bringing some swag of our own.
[Thanks to Duncan Crary for the tip!]