All posts by Windell Oskay

About Windell Oskay

Co-founder of Evil Mad Scientist Laboratories.

The Hungry Scientist Handbook

 Today is the official release date for the Hungry Scientist Handbook, a new book by Patrick Buckley and Lily Binns.

The Hungry Scientist Handbook was conceived as a sort of cookbook for geek-centric food and– using the word a different way– as an a cookbook for food-oriented electronics– as evidenced by projects varying from polyhedral pies to LED lollipops.

We met Patrick and Lily at the 2006 Maker Faire, where they invited us to contribute a couple of chapters to their project. We did, and it’s finally out!

(We aren’t the only ones who are excited– we’ve seen write-ups at the LA Times and
Wired this week.)

A Computer Chip Trivet   Refrigerator magnetscrane crouton   12.  Fire!

We contributed a total of nine projects to the Hungry Scientist Handbook, some of which we have written about here. These include the Computer Chip Trivets, Crafty fridge magnets, Edible Origami, and (making a cameo appearance) the Lego Trebuchet.

Dry Ice Martini   Cold DrinkDry Ice Lemonade

We also contributed a few new cooking projects that involve dry ice: Dry (Ice) Martinis, Fizzy dry ice lemonade, and Dry ice root beer. (With Floating bubbles on CO2 as a bonus project.)

Smart Coasters   Smart Coasters

Smart Coasters

And… a brand new exclusive Evil Mad Scientist Laboratories electronics project that we developed just for the Hungry Scientist Handbook: Smart Coasters.
Smart Coasters are cast-plastic coasters for your drink that light up red when you put a hot drink on top and light up blue with a cold drink. The design is fully analog– no microcontrollers and no programming– and they incorporate a solar cell so that the whole thing is hermetically sealed: waterproof and washable. Complete step-by-step DIY instructions are included for both the electronics and the resin casting.

You can purchase the Hungry Scientist Handbook at booksellers including Amazon. Also visit their new web site, www.hungryscientist.com.

70 bits of gaming goodness

mignonette - 04

The Mignonette is a minimalist handheld gaming platform that we helped to design in a collaboration with Rolf van Widenfelt and Mitch Altman.

The Mignonette is based on an AVR microcontroller (either the ATmega88 or ATmega168) hooked up to drive a 5×7 bicolor red/green LED matrix display, for a grand total of 70 bits of gaming goodness under your total control.

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Five Minute Project: Hot Dog Bun Grilling Jig

Grillin!

Cooking hot dogs (and similarly shaped things) on the backyard grill is one of those classic American summer traditions. One of the weaker parts of this scheme is preparing the hot dog buns. I happen to like mine toasty and warm and crunchy, and without the hinges broken! Not everyone likes grilled buns, but for those of us who do, this is a legitimate concern. Folding buns wide or flat to grill them seems to universally weaken the hinges to the point that they are prone to break upon introduction of a sausage, particularly if there are condiments involved.

So, here’s our quick DIY Hot Dog Bun Grilling Jig, which holds your bun open at the perfect angle while it warms on the grill, forming a sturdy toasted structure with potentially good hinge integrity. Bonus: by grabbing the jig, you can use tongs to set down and pick up your bun without fear of a squished bun.
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The monetary density of things

It’s a common figure of speech to say that x is worth its weight in y, where y is usually (but not always) gold. But most of us don’t buy and weigh gold very often, so how do you connect that to real life? Does “worth its weight” in pennies or $100 bills make any more sense?

We have collected here a bunch of examples for different things that represent a wide range of monetary value per unit weight, in what might make a useful
calibration chart for your future idiomatic usage.

Let’s start this off with a down-to-earth question. Which has a higher monetary density: dimes or quarters? In other words, if you had to carry around $1000 worth of either dimes or quarters, which should you ask for?
Continue reading The monetary density of things

Quick, easy, temporary, and beautiful LED garden lights

lanterns - 12lanterns - 11   lanterns - 13

For a late night summer party, we wanted to deploy an array of maybe 20 or so little LED garden lights along the periphery of our back yard. And since it was for a one-time event, there wasn’t much sense in buying (or building) a set of nice looking permanent solar lights. So here is an alternative: make your own ultra-low cost temporary garden lights using LEDs, lithium coin cells, and mason jars.

Continue reading Quick, easy, temporary, and beautiful LED garden lights

A simple persistence of vision approach to Lissajous figures

lissajous-dark - 07

Lissajous figures are interesting curves that occur in systems where oscillation happens in more than one direction, for example when a pendulum hanging from a string moves in its plane.

The “standard” way to play with Lissajous figures is on an oscilloscope, and the easy way is of course in a web app, but there is also something to be said for a demo that you can hold in your hands. In what follows, we build a simple apparatus that takes a persistence of vision approach to displaying Lissajous figures.
Continue reading A simple persistence of vision approach to Lissajous figures

Cardboard Cat Chaise

Harley Sleeps

Although we don’t claim to understand it, a cat that has installed itself in a cardboard box is a happy cat. You can exploit this mysterious fact to make a your own simple corrugated cardboard cat bed like this one, designed as a kitty-sized chaise lounge. Since it’s just cardboard, it’s also easy to modify this basic design to suit your own (or your cat’s) taste.
Continue reading Cardboard Cat Chaise

Peggy Fail Whale!

FAIL WHALE PEGGY

Sean O’Steen of The Fail Whale Fan Club (failwhale.com) and part time tinkerer captured the essence of the Twitter Fail Whale on his Peggy. Check out how Sean planned his peggy here. Sweet! Thanks to Scott Beale / Laughing Squid for the photo.

See also: a Fail Whale Kinetic Sculpture and cameo appearance on Laugh-Out-Loud Cats.

(Peggy 1.0 kits are available from our web store or at the Maker Shed.)

"That’s no melon!"

"That's no melon!"

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.)