Need help proving the cos(a+b) = (cos a)(cos b)-(sin a)(sin b) trigonometric identity? This free video lesson will show you how. 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 finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series ...
In this video we learn how to crack WPA using Back Track. The first step is the boot into Back Track using a VMware Virtual Machine Image. Next you need to open a shell console. In the console you will type "airmon-ng" and press enter. This does a check to find the wireless guard interface name. Next, type "airodump-ng wlan0" and press enter. This will tell it what wireless card to use and scan for wireless networks. You are looking for the one that comes up WPA. Copy the MAC address then typ...
Elliott Berring shows us how to create songs in GarageBand using Loops. First, launch GarageBand and create a new music project. Keep the default tempo, time signature, and key. Click on the Show Loops browser, indicated by the Eye icon in the bottom left of the window. In this example, he starts with a drum beat by choosing All Drums, then Rock/Blues. Find a beat you like, then drag it into the timeline. Position your cursor over the top right hand corner of the blue bar of the beat you just...
This video shows Nikon Autofocus setting for action. Getting started on setting up the AF for action.
There are tons of hacks for Windows computers, so it was only about time that a hack for Bloons TD came out for a Mac. If you're using a Windows, you can still hack with Cheat Engine, but with Mac, you're going to want to use iHaxGamez.
Bloons Tower Defense 4 cheats are here. And you guessed it… this one uses Cheat Engine. If you want to hack the game, you have to know how to do it, and Cheat Engine can be kind of a complicated process if you've never used before.
Does the morning routine in your household include temper tantrums and a mad rush to get out of the house? Follow this plan to keep everyone on track.
Learn how to play "Black" by Tokio Hotel, an acoustic guitar tutorial. Follow along with this demonstration, tabs and lyrics here:
Want to mix and scratch like a professional DJ? To be a good DJ you need to understand the concepts of mixing tracks, adding cool effects, and of course you need a good sense of rhythm to line up the beats. This how to video sequence explains how to cut and chop on a DJ mixer. There are loads of ways of describing this technique: editing the track, washing up, mowing the lawn, or drying your hair.
Need to make a PCB quick? Well, this video tutorial will show you how to create a PCB with the toner transfer method using photo laser paper.
Ever since Snapchat rebuffed its acquisition attempts, Facebook has morphed Instagram with features from Snapchat, such as stories, chat, and, of course, augmented reality.
Apple released the newest update for iPhone, iOS 14.5.1, today, Monday, May 3. The update (build number 18E212) is the first since iOS 14.5, which Apple made available one week earlier on Monday, April 26.
Adobe Audition, Audacity, and other audio editing software have tools to isolate vocals and instruments in regular songs so that you can get an instrumental track for karaoke, vocals for an a capella version, or solo drums, bass, keys, etc. that you can use to learn the song yourself. The software is mostly for desktop computers, and it doesn't always do a good job, but that's where Moises comes in.
Thanks to numerous smartwatch deals this holiday season, many people are receiving their first one. But what exactly can they do? In regards to fitness, quite a lot. With a growing list of sensors and software updates, these small devices can be the very thing you need to ultimately reach your fitness goals.
One of the major additions in the Google Pixel 4 is the new Soli chip. It's the miniature radar sensor that powers Motion Sense, a new way to interact with your phone without touching it. There are a few new gestures you'll need to learn to take advantage of Motion Sense, so let me break them down for you.
Hackers rely on good data to be able to pull off an attack, and reconnaissance is the stage of the hack in which they must learn as much as they can to devise a plan of action. Technical details are a critical component of this picture, and with OSINT tools like Maltego, a single domain name is everything you need to fingerprint the tech details of an organization from IP address to AS number.
Now that ARCore is out of its developer preview, it's time to get cracking on building augmented reality apps for the supported selection of Android phones available. Since Google's ARCore 1.0 is fairly new, there's not a lot of information out there for developers yet — but we're about to alleviate that.
Now that we've had a chance to jump into the Lumin SDK documentation at Magic Leap's Creator Portal, we now have much more detail about how the device will function and utilize software than any single piece of content released by Magic Leap to date.
One unique feature of Firefox Mobile is extensions. Extensions allow users to add in features that didn't originally come with the browser. These add-ons provide an array of features, including improvement to privacy and security.
Hashtags are one of the most important marketing tools available to you on Instagram. Although, it's hard to know which hashtags are working for you or not. You may think #fun is a good one to use but is it really? Okay, yeah, it's a popular one. But that doesn't mean it's the right one for you to use.
Continuing this series, I am now moving on to the section, 'Anonymous'. Hope you are looking forward to read this.
If your iPhone can't last a full day without being recharged multiple times, something's wrong—but it might just be working harder than it needs to.
You saw our post on the 18 coolest new features of iOS 7, but now that you've had a chance to play around with your updated iPhone, it's time to lock it down.
Welcome back, my budding hackers! Previous to this tutorial, we've focused mostly on hacking the target system. If we're successful in owning the target system, we'll then want to make certain that the system administrator doesn't know we were there, and that he or she cannot track us.
I love surprises. Surprise parties, surprise visits, surprise Patrick... But there are times when a surprise is the last thing you want, like reaching into your pocket to find that your Samsung Galaxy S3 is not where it should be.
This how-to video proves tai chi isn't just for old people in the park. You can learn how to subdue your enemy in four seconds from a tai chi master. There is a pressure point on the neck that you can press that will render your enemy unconscious. Watch this instructional martial arts video and learn how to subdue an enemy with tai chi skills.
Gas is over $4.00 a gallon all over San Francisco, so this video is all about proven methods to get more MPG from your car, from changing the air filter to giving up on using your brakes.
Need help proving the sin(a+b)=(cos a)(sin b)+(sin a)(cos b) trigonometric identity? This free video lesson will show you how. 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 finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of...
The first video explains the Method of Mathematical Induction. It also gives a background of Francesco Maurolico, Pascal and John Wallis. You'll see how to apply the Method of Induction to prove the sum of odd numbers is a square.
Now that everyone has an Android or iPhone in their pocket, there's no excuse for being late to an appointment or job interview. Thanks to that GPS receiver in your smartphone, navigating your way through city streets and highways is a cinch, in or outside of your vehicle. But once you get inside a building, that fancy GPS feature doesn't know what to do. Which direction is the elevator? How do you get to room 819? Where's the nearest fire exit? The bathroom?
We realize that celebrities change their hair color a lot, and oftentimes without consideration as to their skin tone. But that's because they're frequently gearing up for movie role that require a certain shade of hair color.
If you're interested in editing music videos one of the things you'll want to know is how to edit on the beat. So, where ARE the beats? This helpful video shows you how to use iMovie 11's beat marker tool to find and mark the beats, so you can cut to your hearts delight.
GarageBand is a great tool for composing your own beats and jingles, but when it comes to filters, it's not so easy to understand exactly what they do, as in the case of the AUBandpass filter. This video explains exactly what the AUBandpass feature does in GarageBand and how it can be used to make quality-sounding instrumentals for you beat projects.
In this video, we learn how to use a sidechain gate on synths & drums in Ableton. First, drag a gate device onto your synth track. This will turn down the volume of the synthesizer device very quickly. Once you do this, you will have a sidechain view, turn it on by clicking the green button. Then, bring the attack down to 0 ms and bring your hold down to 3.9 ms. When this plays, you will hear an electronica type of beat. This is a simple way to make your synth lines more exciting. Save this w...
Gmail is an amazing e-mail service being offered by Google for free, and over the years it has built a large list of great, reliable features. The problem is not many have heard of Gmail, or know how to use it. In this great three part video series you will learn how to sign up for a Gmail account and also how to use some of its fantastic features to get you started on the right track.
Did you know that people who live in the Mediterranean - including Greece - are reputed to have the longest life spans of anyone on earth? Is genetics involved? Probably. But we're thinking it also has something to do with their diet, which is composed mostly of whole grains, fruits, vegetables, and fish.
Summer's almost over, which means going back to school (boo for 6 AM wake up calls), getting back on the fast track, and, most depressingly, losing our hard-earned summer glow. Okay, maybe it wasn't THAT hard-earned (unless you count lounging on the beach with a martini in hand hard), but we're quite saddened that we will once again rebound to our former sallow selves.
In this tutorial, we learn how to use the zoom feature in Mac OS X Leopard. First, go to system preferences, then universal access. Find the zoom category, then turn it on of off. You will also see the keys that you can press which will make it appear. If you go to the options menu, you will be able to maximize or minimize the zoom. Test this out by zooming in on a page and holding the control key along with the tracking ball on your mouse. When you do this, everything will become far more zo...
In hip-hop dance, or any dance for that matter, there are so many different types of techniques and moves it can be hard to keep track of them all. Most importantly, it can be hard to figure out what you like and how to do it. Well, if you're interested in things like tutting, fingertutting, or digital combos then this video may be for you.
If you are watching the World Cup live and the vuvuzelas are driving you slowly (or quickly) insane, this video isn't going to help, sorry. However, if you are recording the World Cup or working with someone else's recordings of it, it is possible to almost completely eliminate the sound of the vuvuzelas while mixing in Garageband or another audio editing program. This video will show you how to create the proper parametric EQ's and mute the vuvuzelas while preserving the rest of the audio tr...
