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. With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to rewrite a ratio as a fraction in its simplest form.
In this tutorial, we learn how to adjust a rear derailleur on a mountain bike. First, get on the bike and start to ride it like normal, except have it mounted into one place. Then, shift the front derailleur into middle gear and the rear derailleur to the smallest gear. After this, shift back gear up one gear while pedaling. If it hesitates going up to the next gear turn the barrel adjuster counterclockwise until it moves smoothly into gears. Do this again through each step until it shifts sm...
This how-to video demonstrates the process of switching gears on a bicycle. Depending on the number of chains and hubs, your bike will have a varying number of gears. You should be aware of the terrain and make sure you are in the appropriate gear. Don't change gears under power. Know how and when to change gears to make the bike ride smoother and more enjoyable. Watch this video cycling tutorial and learn how to shift gears on a bicycle.
As you might guess, one of the domains in which Microsoft Excel really excels is finance math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 11th installment in his "Excel Finance Class" series of free video lessons, you'll learn how to calculate asset turnover, capital intensity, inventory turnover, days to sell inventory, receivable turnover, days to collect accounts receivab...
Trying to take out Tempest, the last boss fight in Gears of War 3? You'll find her in Act 5, Chapter 6 of the game. Take a look at this gameplay video to find out just exactly what you'll need to do to defeat her and beat Gears of War 3! Be careful, the ending of Gears of War 3 is hinted at towards the end.
This video walkthrough shows you how to beat Belly of the Beast, the third Act, of Gears of War for the XBox 360 on insane difficulty. The video also includes a voiceover to guide you through some strategies.
Protect yourself in paintball games. Learn how to select paintball gear in this free paintball lesson from an expert paintball player.
This is a video tutorial in the Education category where you are going to learn how to describe chemical formulas. A chemical formula represents the actual number of atoms of each element within a molecule. Different visual representations of molecules include the ball and stick three dimensional model, a line drawing that represents the structure in two dimensional terms, and a shorthand used by organic chemists. If a molecule has 4 green atoms and 2 orange atoms, the ratio of green to orang...
In this clip, you'll learn how to export a project from FCP to a 100 MB or less MP4 file that maintains your project's original aspect ratio. Whether you're new to Adobe's popular motion graphics and compositing software or a seasoned video professional just looking to better acquaint yourself with the program and its various features and filters, you're sure to be well served by this video tutorial. For more information, including detailed, step-by-step instructions, watch this free video gu...
If you need to replace the spokes on your rear wheel, change the gearing, replace certain parts, or just clean it, this video is going to show you how to do just that.
Fractions are numbers of the form a/b, where a and b are integers. Fractions are also called as ratios. Fractions are further divided into proper fractions and improper fractions. Proper fractions are those where the numerator is less than the denominator and improper fractions are those where the numerator is greater than the denominator. As fractions are ratios a fraction can have many equivalent forms. Multiplying the numerator and denominator of a fraction with a same number gives a fract...
In this video, the instructor shows how to identify the percentage change using proportions. When a given quantity increases or decreases by certain amount then we can calculate the percentage change in the quantity, which can be either increase or decrease based on the new value of the quantity. To solve these kind of situations you should know that the ratio of amount of increase (or decrease) of an amount to its original amount is equal to the ratio of percentage increase (or decrease) to ...
Obtain finely powdered iron oxide (rust), aluminum, and a thin strip of magnesium. Mix them together in a 8:3 ratio (iron oxide: aluminum) in a ratio by weight. [Note that the since aluminum is so light, it will appear that it is about a 50-50 mix by volume].
If you're playing Gears of War 3 and happen to visit the Mercy map, be sure to listen in for the bells. When you hear them, you'll be able to see a picture of Dom appear. But the easter egg doesn't end there. If you shoot the picture you'll hear a soundbyte of Dom crying.
The turret placement for the Brumak that spawns in wave 10 of Horde 2.0 mode in Gears of War 3 is very important. But if you take a look at this video guide, you'll be able to defeat the Horde Mode version of the Brumak fairly easily.
If you're playing through Gears of War 3, the Beserker boss fight at the end of act 3 can be quite the pain, especially if you have it on hardcore mode. Take a look at this walkthrough to defeat the Beserker boss on hardcore mode. Even if you are on normal mode in GoW, this should give you the necessary strategies needed to take him down.
Both the Gears of War 3 Limited and Epic Editions contain a DLC code that allows you to unlock and play the Adam Phoenix character. The code is a little hidden, and unlike most DLC codes, isn't printed on the back of the manual. This guide from IGN will show you where to find the Adam Phoenix DLC code.
Jungle is a pretty and pretty fun multiplayer map in Call of Duty Black Ops, and playing it strategically can net you an incredible kill ratio. Watch this video for a strategy that you can use with the M16 playing Team Deathmatch on Jungle to defeat your likely SMG-wielding opponents.
This square dance video teaches the following plus level square dance calls: Track II, Single Circle to an Ocean Wave, Spin Chain the Gears.
We used to view homemade dressings as something whose variables of flavor and texture outweighed our desire to make them up on the fly. We often found ourselves nervous that they'd come out too runny or too tart or even too thick.
So you're suiting up for a heroic instance in World of Warcraft, and you're playing an agility or DPS based character - what's the best gear to get? This video shows you all the best gear that doesn't come from loot drops.
The Lancer chainsaw / machine gun from Gears of War is the weapon that first sold that game, Cliff Bleszinski's twisted brainchild that made the multiplayer so much fun. If you like LEGO and Gears of War, watch this video to learn how to make a replica of the Lancer out of LEGO for your minifigure to dismember each other with.
The gears on your bike are crucial tools for allowing you to traverse multiple different types of inclines on the same ride. They allow you to make your pedals easier or harder to push, maximizing power and speed throughout your ride. This video will explain how the gears work and show to shift properly to ensure that you have the best ride you can.
In this video, we learn how to replace the main gear on a Honey Bee King 3 helicopter. First, take the main blades off with a 2.5mm wrench. Remove the connectors, then remove the nut from the bottom gears and set it aside. Take out the gear and replace it with a new one. Screw it back into place, then make sure it's tightened. After this, you can place the blades back onto the helicopters and screw them into place. It will be hard to place some of the nuts back on, since they are located in s...
In this tutorial, we learn how to shift gears on a 2008 Ninja 250 motorcycle. First, pull in the clutch, take it down to first, then give it gas and release the clutch to get the bike started. To shift gears, pull in the clutch, pick up, then ease out the clutch, then give the bike gas. Keep doing this to change in between the different gears on the bike. Practice doing this in an empty parking lot and don't forget to keep on the gas while you are doing this. You may let go of the clutch to q...
This video is a Hobby Estore Video Tutorial that will show you how to repair or replace the ACME remote start system in your radio control cars. You will know you need to take this step when your RC car doesn't start or when you push the start button and all you hear is a clicking noise. The first step is to remove the remote start system and this can be accomplished by taking the top cover off of the car and then unhooking the exhaust hose from the remote start system. Then take the cover of...
Before driving your car make sure that you put your seat belt on. There are three peddles in a car with a manual transmission. The first one on the left is the clutch. The next peddle is the brake. The peddle to the right is the gas peddle. The next thing you need to understand is the shifter. The transmission will have a number of gears, usually 4 or 5, with reverse. Make sure you study the gear pattern on the shift knob so that you know where each of the gears are when you are shifting as y...
This is a demonstration of sewing a rolled hem. A rolled hem is a stitch that is used most often when making your own gear for backpacking or hiking. Making your own gear is beneficial because you can make it totally custom, which fits your needs. This is a basic stitch, but very rugged and versatile. Just what the average outdoorsman needs.
This motorcycle driving tutorial explains how to ride a motorcycle by showing you how to shift the gears of the bike. This video goes into detail about how gear shifting works on a bike and then reminds you not to overthink it in practice!
Check out this instructional DJ video that takes a look at how to use your DJ gear at a typical nightclub setup. This tutorial also provides a walk through demonstration on how to map the Novation 25sl for use with Traktor 3. Set up your digital DJ gear in a club and start mixing beats like a master DJ!
Quick video on how to best care for your paintball apparel. I recommend washing all of your gear in cold water, on delicate cycle.
Kristin Hostetter, Backpacker's Gear editor, shows you how to hold trekking poles to hike longer and higher with fewer aches and pains. Learn more from Backpacker's Gear School in the March 2007 Gear Guide.
Finding out your torso length is half the battle. Backpacker's Gear editor Kristin Hostetter explains all the strategies to you need to find a good-fitting backpack--from how to simulate a fully-loaded pack, to what to look for in hip belts and shoulder straps. Learn how to find your perfect pack at Gear School - straight from the pages of the March 2007 Gear Guide.
Knowing your torso length is crucial to finding the best-fitting backpack for your body type. Don't estimate a pack size using the clothing standbys of tall, medium, and petite: a 6-foot guy can have a shorter torso length than a 5'10" woman. Backpacker's Gear editor Kristin Hostetter explains the correct way to measure your torso length. Learn more important skills with Backpacker's Gear School videos - straight from the pages of the March 2007 Gear Guide.
Better TV has some stress-free tips to packing your camping gear. Check out this how-to video for getting geared up for camping. Hopefully you don't have to buy all your gear. Watch these stress free tips for packing your outdoor gear!
Economists have long since known that people want to be rewarded for taking on risk. Investments are thus judged by their risk-adjusted returns (Sharpe ratios). A typical hedge fund has a Sharpe ratio of around 0.5. This means that its excess annual return over the risk-free rate is about half its annual standard deviation.
Avoid stripping the gears in your Rain Bird 5000 Series Rotor Sprinkler Heads by never turning the turret against the turn. Sean Stefan from Sprinkler Daddy explains in this video tutorial that if you start turning from the left fixed edge to the right, never go back to the left until you've gone all the way to the right. If you don't follow these guidelines, you run the risk of stripping the gears in your Rain Bird 5000 Series sprinkler heads. Then what are you going to water your lawn with....
This video will show you how to ride a motorcycle the first time you are using it both on the street and on the freeway. Before you begin, the left handle is the clutch, much like the clutch and changing gears for a car. Your left foot will be responsible for changing the gears by moving a lever upwards to shift up and downwards to shift down. The right side has the front brake in the handle and the rear brake by the foot pedal. Hold the clutch down as you start your motorcycle as you kick do...
This video will show you the right and proper safety gear for kayaking. Kayak safety gear is one of the most important aspect of kayaking. The most important kayak safety gear is the life jacket. It should be short torso so you can move freely and it does not rise up. Make sure that all the straps are tighten when you wear it. The next important kayak safety gear is a whistle. You will use it when you are in trouble or in emergency. Blow it once to catch attention and 3 times during emergency...
The video is about adjusting the front derailleur of a performance bike. To adjust the front derailleur you have to first adjust the rear derailleur to the smallest gear. To adjust the front derailleur shift the gear to the largest. If it does not slip into largest gear then adjust the barrel adjuster by turning it counter clockwise till it settles into the largest gear. Turn the barrel adjuster until it stops rubbing against the chain. The full process can be carried out whilst riding, it is...
