One cantaloupe, a knife, and five minutes. Your very own (and very tasty) planet-killing superweapon.
Hint 1: Center the “crater” around where the stem was connected so that the darker fibers under the skin point towards the center of it.
Hint 2: Stretch a string around the melon to help guide your equatorial trench.
(Also: you don’t really need that exhaust port. It’s a weakness.)
In the year 1958– fourteen years before the 1972 debut of Pong— a physicist named William Higinbotham demonstrated a remarkable video game called Tennis for Two.
Higinbotham, head of the Instrumentation Division at Brookhaven National Laboratory, designed his game as an exhibit to improve what was an otherwise lackluster visitors’ day at the lab. Tennis for Two presented a tennis court– shown from the side– on an oscilloscope screen, where handheld controllers allowed the two players to toss the ball to each other. Each controller had two controls: a button and a knob. With the button, you could hit the ball at any time of your choosing when it was on your side of the net, and with the knob you could choose the angle at which the ball was hit.
The game was based on the best contemporary technology: analog electronic computers built out of op-amps, relays, and the occasional transistor. It took Higinbotham and his technicians several weeks to design and build the game. Of course, some things have changed over the last 50 years. Using convenient modern electronics, we have designed a functional and playable replica of the original that can be put together by a hobbyist in a couple of evenings. You can watch the video of our recreation on YouTube or embedded here:
Continue reading Resurrecting Tennis for Two, a video game from 1958
Specialized machinery is fascinating, but you don’t often get to see it. Our local bakery, Le Boulanger (at their headquarters on Mathilda in Sunnyvale) provides windows from their seating area into the production area. It is absolutely wonderful to sit and watch the dough poured out of the giant mixer. It heads into a hopper which cuts it into pieces which get spun into balls, which go through the rising machine and roll out down the conveyor belt. Sourdough rounds are on the way! And that’s just one of the processes you can watch. Sometimes you’ll see bagels, sometimes pastries, sometimes breadsticks… It’s definitely worth a visit, and even more fun than the Krispy Kreme machine which only does one thing. And they have free (albeit slow) wi-fi!
Today we have an update on our Peggy 2.0 Light Emitting Pegboard project, with (1) a new and improved version of the Peggy2 Arduino library, (2) links to several awesome examples of Peggy hacks– including a full-motion video hack, and (3) a new GUI application example that lets you display an image on the Peggy without writing a single line of code.
Continue reading The Peggy Strikes Back
It’s a holiday weekend here in the states, and holiday weekends are great for getting organized and working on projects. In that spirit, here are a couple of pictures the workbench in my dad’s garage. Mmmmm….tools!
Retro-dork-chic-DIY-d12 handbag.
We first discovered Cubyrop via flickr and were smitten, so we put them in an Amazon wishlist. But after more than a year, we happened to just come across a bag of them at Nijiya(a Japanese supermarket) and were thrilled!
The verdict? Cubyrop are intensely charming — even better in person than they look in the photos. They are hard candy, intensely fruit flavored as only Japanese candies can be. While the name would imply that they are perfect cubes, they are indeed perfect but are not always cubes– the sides vary from 11-13 mm. They come wrapped two to a package, which is just the right amount of sweet and flavor.
They are color coded:
Mango and orange are difficult to tell apart visually, but they definitely taste different. Cubyrop also come in a (slightly larger) gummy variety, which also have intense flavoring but are jiggly with a dusting of sour powder. (Note: Some of you who grew up in the same era as us may also have an innate fear of gelatinous cubes.) There is also a variety labeled as throat drops, with some sort of cough-drop powder in the center of the cubes. They taste vaguely medicinal, but are still significantly better than most cough drops.
As with so many Japanese products, presentation is everything. The product shape carries over into the font, and the square color coding for the flavors is listed both in English on the front and in Japanese on the back. Charming, andtasty! What more could you want?
Today we’re releasing the circuit diagram for the Interactive LED Dining Table (aka our kitchen table).
Continue reading Interactive LED Dining Table Circuit
Happy birthday to us! Evil Mad Scientist Laboratories is now two years of age. Collected below is a “Best of Evil Mad Scientist” for the past year: Some of our favorite projects that we’ve published over the last twelve months. Here’s to the next year!
Quick projects:
Rubberbands made from old bicycle innertubes.
Light tent made from a lampshade.
Spool spinner from an old fan.
The $1.00 C to D adapter
Electronics projects
How to make a Joule Thief from Make: Weekend Projects.
How to make a dark-detecting LED night light.
The Great Internet Migratory Box of Electronic Junk
How to make a Sawed-off USB Key
AVR microcontroller projects
Using an ADXL330 accelerometer with an AVR microcontroller
Kit Projects
Crafty Projects
Food Hacking
CandyFab
Printing complex shapes: Sugar Chain
Candyfab improvements: higher resolution and edible output
Papercraft:
Rotary Fraction Adding Machine
Observations & silly projects:
Lego Projects:
Forbidden Lego review & build
Reviews:
Lee Valley & Veritas Catalog Review
Teardowns:
