From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to use statistical range, variance and standard deviation to measure dispersion in a data set.
All of these four videos are excellent. You will notice that while all the videos and articles have slightly different design dimensions, they are fundamentally very similar. I urge you to view and read everything I am serving up. Then, my final words of advice are simply....choose between a barbeque switch and a taser gun. (Hint: there is a right choice, and there is a wrong choice.)
So you got a hold of a vintage Elmo transvideo telecine projector on eBay and now you have no idea how to use it. In this video, get a short demonstration of how to use the standard 8mm model of the Elmo telecine projector.
Sometimes it's hard to find the time to watch your diet. When you're in a rush, you'll eat whatever you can. Many people grab snacks without considering food quality. But there are healthy vending options.
Nothing beats a Champagne tower for old-world elegance—so long as you construct it so it doesn’t fall down! Watch this video to learn how to build your own champagne tower. You will need:
Here is what you need: a Bluetooth headset, some standard wires, at least one glove, knife for cutting, and time. That's it. How simple and how awesome?! Mod the Bluetooth to fit on your finger and be a cool spy device, perfect for James Bond.
Learn about this new seam carving technology, Content Aware Scaling, in Adobe Photoshop CS4, and you'll be tempted to never use the standard Transform tools again.
This Adobe Acrobat 9 Pro tutorial shows you how you can use the built-in preflight tools to identify issues in a PDF like colors, fonts, standards conformance and more. Learn how to analyze and fix an entire PDF, or run single checks and fixups on trouble spots or certain objects. You will also see how to embed an audio trail of the inspection in Acrobat 9 Pro.
This how-to video shows how you can hack a standard baseball cap into a cool invisible IR mask to hide your face from cameras anywhere, and look perfectly normal to the human eye! You have to admire a technically accomplished hacker. Now don't go out a rob a bank or anything. Watch this video tutorial and learn how to camera-proof your face with a creepy infrared mask.
Tim Carter demonstrates how to use hole saws. These tools drill perfectly round holes from one-half-inch diameter up to 2 and 1/4-inch diameter using your standard drill.
This video shows how even the cheapest file can act as a striker. Use a standard micro file to make a spark. Do not prep it in any way and, in fact, don't even remove the teeth from the file. This a good, but short, closeup on the process.
A homemade kickflip video that works. Watch and learn how to do this standard skateboarding trick with a play by play style video, and diagram included.
This week's Brief Reality is led by a pair of stories with an eye to the future of the augmented reality industry, first in terms of standards for the industry, then with regards to its future applications in the automotive realm. Finally, one company looks to boost its future sales with an executive hire.
Update: August 1, 2014 Earlier today, President Obama signed into law the Unlocking Consumer Choice and Wireless Competition Act, making the act of unlocking your unsubsidized cell phone 100% legal.
Remember those Choose Your Own Adventure novels? If your school was anything like mine, they were so popular you were lucky to find one to check out at the library. But there's no worries now, thanks to this handy HTML5 app, which makes it easy to write and share your own 'choose your own adventure' novels. inklewriter is a free tool designed to make writing interactive stories simple. Basically, you start typing and inklewriter helps you organize your story, making it easy to add, remove and...
If you're looking to get a faster Android phone without resorting to installing a custom ROM, check out this helpful video to learn seven tips for speeding up an Android smartphone. There are a number of easy adjustments to the standard Android settings that will make the phone seem much faster.
A bow - whether pinned onto your shirt or tied around your waist as a belt - is a quick and easy way to add instant feminine pizazz to any outfit. Even if all you're wearing is a standard white tee and shorts, donning a bow belt will turn that outfit into a pretty look.
In this clip, we learn how to install a SIM card into a standard GSM cell phone. It's easy! So easy, in fact, that this mobile phone owner's guide can present a complete overview of the process in about three minutes. For all of the details, and step-by-step instructions, take a look.
Interested in converting your mobile phone's SIM card into a MicroSIM card? It's easy! So easy, in fact, that this mobile phone hacker's guide can present a complete overview of the process in about eight minutes. For more information, including detailed, step-by-step instructions, take a look!
In this guitar lesson, learn how to play a C#sus4 (or "C sharp sustained 4") chord on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing this C chord on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play a C# (or "C sharp") chord on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing this C chord on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play a C/B (or "C over B") chord on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing this C chord on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play a B11 or B13 chord on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing this B chord on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play a B eleven chord on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing this B chord on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play A#7m on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing this A chord on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play an A#dim on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing A-sharp diminished chords on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play A#7 on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play A#7 chords on your own guitar, watch this video tutorial.
In this guitar lesson, learn how to play a G minor triad on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play a G minor on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play a G major triad on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play a G major chord on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play a F minor triad on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play an F minor on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play an F major triad on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play a F chord on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play an E minor triad on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play a E minor on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play a D minor triad on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play a D minor on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play a C minor triad on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to learn how to play a C minor on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play open A minor triads on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing Am chords on your own guitar, watch this video tutorial for beginning guitarists.
In this guitar lesson, learn how to play open A major and A minor chords on a guitar in standard tuning (EADGBE). With the guitar, as with any other instrument, if you want to improve, you'll need to practice. Fortunately, the Internet is awash with free, high-quality guitar lessons like this one. For more information, and to get started playing A chords on your own guitar, watch this video tutorial.
In this clip, you'll learn how to convert a standard USB keyboard into a backlit keyboard with a little bit of el wire. It's an easy process and this video presents a complete guide. For more information, including a full demonstration and detailed, step-by-step instructions, watch this helpful home-computing how-to.
In this tutorial, you'll learn a few standard methods for resolving less common and more complicated wireless network problems. It's an easy process and this video presents a complete guide. For more information, including a full demonstration and detailed, step-by-step instructions, watch this helpful home-computing how-to.
Is your Windows Vista PC running kind of slow? Well, the easiest thing you can do to speed up Vista's performance is by simply disabling some of the standard, preset features built-in to Windows. This video will walk you through the process of turning these unneeded features off, which is as easy as unchecking a box.
Wish there were a way to turn your webcam into a bonafide security camera? Well, there is! And it's easy! So easy, in fact, that this home-computing how-to from the folks at TekZilla can present a complete overview of the process in just over two minutes. For more information, including step-by-step instructions, take a look.
