9 Steps to Build a DIY Off-Grid Solar System. How to Make Cold-Brewed Coffee. Inspired by conversations on the Food52 Hotline, we're sharing tips and tricks that make navigating of our kitchens easier and more fun. Today: What's the big fuss about cold brew? Let us explain. Iced coffee in the summer -- it's a given. It's cold, it's refreshing, and for many of us, it is a necessity. There are a few things about a cold-brew that have made it into the summer beverage du jour. Finally, a cold brew is pretty much ideal for iced coffee because it is more concentrated than a traditional, hot-brewed cup o' joe; the addition of ice and cold milk or cream will dilute it just enough without watering it down. Iced coffee is more expensive than hot coffee, and cold brew is even pricier. You're in luck; with only three steps, cold-brewing might be the easiest coffee method out there. Grind, Soak, Wait The ratio of coffee grounds to water is pretty debatable; personal tastes will dictate your own.
Put the coffee in your brewing container and add the water. Photos by James Ransom. Lock Picking. Earth Ships. Media Gallery. Build a 15,000 rpm Tesla Turbine using hard drive platters. Here's a project that uses some of those dead hard drives you've got lying around. In the Tesla Turbine, air, steam, oil, or any other fluid is injected at the edge of a series of smooth parallel disks. The fluid spirals inwards and is exhausted through ventilation ports near the center of the disks. A regular blade turbine operates by transferring kinetic energy from the moving fluid to the turbine fan blades.
In the Tesla Turbine, the kinetic energy transfer to the edges of the thin platters is very small. Instead, it uses the boundary layer effect, i.e. adhesion between the moving fluid and the rigid disk. To build a turbine like this, you need some dead hard drives, some stock material (aluminum, acrylic), a milling machine with a rotary table, and a lathe with a 4 jaw chuck. Wikipedia has a good review article ( as well as articles about I run my turbine on compressed air (40 psi), and it easily reaches speeds of 10-15,000 rpm.
Arduino. Aeroquad - An Arduino based four rotor R/C helicopter or quadrocopter. Check out our main website and forum at For feature requests or bug reports, please submit them to: If you are interested in obtaining the latest and greatest code, please visit our main repository at: The AeroQuad is an open-source hardware and software project dedicated to the construction of remote controlled four-rotor helicopters, also known as quadcopters or quadrocopters.
AeroQuad hardware typically consists of an Arduino microcontroller (Mega-2560 or Uno) as the flight controller board, and an AeroQuad shield with various sensors, such as an accelerometer and gyroscope. AeroQuad software, written mostly in C and uploaded to the micro-controller via the Arduino IDE, currently supports Rate (Acrobatic) Mode that uses only the gyroscope for flight assistance, and Attitude (Stable) Mode that use both the gyroscope and accelerometer for auto-leveled flight assist. Current Features Planned Features. Arduino. 11 Arduino projects that require major hacking skills—or a bit of insanity. Raspberry Pi has received the lion's share of attention devoted to cheap, single-board computers in the past year. But long before the Pi was a gleam in its creators' eyes, there was the Arduino. Unveiled in 2005, Arduino boards don't have the CPU horsepower of a Raspberry Pi. They don't run a full PC operating system either.
Arduino isn't obsolete, though—in fact, its plethora of connectivity options makes it the better choice for many electronics projects. While the Pi has 26 GPIO (general purpose input/output) pins that can be programmed to do various tasks, the Arduino DUE (the latest Arduino released in October 2012) has 54 digital I/O pins, 12 analog input pins, and two analog output pins. Arduino's array of inputs and outputs proves crucial in projects from building robots to 3D printers, said Jason Kridner, co-creator of the BeagleBone line of products that combine Raspberry Pi-like horsepower with Arduino-like capabilities. Dublon spent a year testing Tongueduino on himself. Rasberry Pi. Raspberry Pi and Arduino. Rasberry Pi Wiki.
DIY. DIY Network - Home Improvement How-To & Remodeling Projects. Instructables - Make, How To, and DIY. Tincture. Herbal tinctures are not always made using ethanol as the solvent, though this is most commonly the case. Other solvents include vinegar, glycerol, ether and propylene glycol, not all of which can be used for internal consumption.
Ethanol has the advantage of being an excellent solvent for both acidic and basic (alkaline) constituents. Glycerine can also be used, but when used in tincturing fashion is generally a poorer solvent. Vinegar, being acidic, is a better solvent for obtaining alkaloids but a poorer solvent for acidic components. For individuals who chose not to imbibe alcohol, non-alcoholic e,g., (glycerite) extracts offer an alternative for preparations meant to be taken internally. Some solutions of volatile or nonvolatile substances are traditionally called spirits, regardless of whether obtained by distillation or not and whether or not they even contain alcohol. General method of preparation[edit] Examples[edit] Some examples that were formerly common in medicine[2] include:
Homemade Wine 101. I have never claimed to be a very sophisticated kinda gal....Gourmet, I am not.....When it comes to food I like good ole homemade stick-to-your-ribs comfort food.When it comes to drink I like good old fashioned sweet tea, coffee, Chai Tea and Diet Coke. (whenever I can make it into the city of course its Starbucks, Mocha Frappuccino, caramel macchiato, pumpkin spice Latte, sooo many yummy fattening drinks from there!) And wine? Well .. lets just say I'm a cheap wino. Now, don't get me wrong, I drink alcohol occasionally, like maybe once a month or so. Even better than any store bought wine is homemade wine!!
Then I stumbled upon what they call "Prison Wine" Prison Wine... that sounds easy enough! Fruitsugarwater That's it! Homemade Wine 101... Dump 6 cups of sugar into your container.Pour almost all of the gallon of water into the container.Stir till sugar is dissolved.Dump in your fruit chunks.Wrap your lid/container in plastic wrap to keep out those pesky fruit flies! Peach = yummm!