Wonderful Solution Search Results

How To: Solve a system of linear equations by substitution

System of equations is nothing but a system which contains more than one linear equations. This system of equations can be solved to arrive at the solution of the system. A simple system of the linear equations can be a pair of equations. To solve this kind of system you can employ the substitution method. So take the two equation of the system. Solve for the value of y in the first equation in terms of x. Now take this value of y and substitute in the second equation y value. Now the second ...

How To: Make potassium trichromate

In this how-to video, you will learn how to make potassium trichromate. You will need potassium chromate and dichromate. It is easy to go between the two. You can add a base to the dichromate to make the chromate. It will go from orange to yellow. The trichromate can be produced. You will need nitric acid, potassium dichromate, and sodium disulphate. First, make a solution of sodium sulphate. Take a long test tube and the potassium dichromate to it. Add double the volume of concentrated nitri...

How To: Milk a cow

Modern milking parlors use machines, but milking a cow by hand is an ancient art. Here’s the "udderly" perfect way to do it.

Spice Rack Explosives: How to Make Gunpowder with Salt & Sugar

The best chemistry experiments are those you can perform with items already laying around your house. With only some sugar, salt substitute and an instant cold pack, you can make your very own gunpowder! Being able to make homemade gunpowder without a trip to the store can be a lifesaver, no matter if it's just for testing out a Civil War-era musket, blowing up stubborn tree stumps, or preparing for battle when imperialists overrun your country.

How To: Dry fruit from your garden

Curtis Smith of Southwest Yard and Garden show viewers how they can dry fruit from their garden. First, you need to wash your hands before handling your fruit. To wash your hands you want to remove any jewelry, wet your hands, lather your hands and rub them together for 20 seconds and rinse. Dry them on a clean towel so you don't recontaminate. You can dry fruit in your oven if you don't have a dehydrator by setting your oven on the lowest setting, 150 degrees F, and leaving the oven open unt...

How To: Remove fake nails with acetone

Joyce teaches viewers how to remove fake nails by using acetone. First, you should get acetone solution and submerge your nails into the solution for a few minutes and the nails will come off by themselves. For fake nails, you can apply nail polish remover and the nails will easy pull off. You can also just wait for your nails to grow and the fake nails will naturally fall and you can just easily pull them off. You can also get a cutter and slip this in between your fake nail and real nail an...

How To: Perform the Barus effect

Watch this instructional science video to observe the Barus effect in action. A dyed solution of POLYOX (polyethylene oxide - it is the stuff used as the lubricant on the strip found in all modern razors) is extruded from a 50 mL syringe. On exit, a marked swelling in the liquid stream several times the diameter of the orifice is observed. The effect is referred to as the Barus Effect, but it also goes by several other names including the Merrington Effect, Die Swell, and Extrudate Swell.

How To: Make TCPO (for making glow sticks)

How to make TCPO or bis(2,4,6-trichlorophenyl) oxalate, used in glow stick reactions. WARNING: This procedure should only be performed by, or under the direct supervision of, an experienced chemist. Please refer to the material safety data sheets of all chemicals for their hazards. Synthesis must be performed in a fumehood.

How To: Remove and replace a Delta chuck on a drill press

A drill press is a wonderful power tool for any craftsman's garage, but just because it's wonderful doesn't mean it doesn't need a little maintenance or repair every now and then. The drill chuck goes through a lot, and eventually, it will need to be replaced, or at least cleaned. This video will show you how to remove a Delta chuck from your drill press with ease, and shows you where to go from there.

How To: Prepare vegetable stuffed bell peppers

This how-to video shows you how to make stuffed bell peppers with the letters A, B, and C, vitamins that is. Stuff your bell peppers with wonderful vegetables including zucchini and carrots as well as mushrooms onions, garlic and polenta. Stuffed bell peppers are easy to prepare and they make a wonderful meal for any day of the week.

How To: Capture audio when shooting video

In this tutorial, we learn how to capture audio when shooting video. First, you will need to choose the location and survey the environment. Make sure you can control the noise outside. You will also need to close the gap between what you are recording and where the microphone is at. The closer you are to the camera, the better audio you will get. You also need to choose a great microphone for your camera. You can use a large microphone on top of your camera or have one that goes overhead and...

How To: Use hydrogen for better mileage

Hydrogen can be used to improve mileage. The hope with this method is that hydrogen will increase the amount of gasoline combusted and increase fuel efficiency, as you trickle hydrogen into the tank. Often propane is used to increase gas mileage. The studies are still being done. There's no official data at present, but there is significant experimentation.

How To: Make a PSP Pandora's Battery and MMS with PSPtool

Hacking the PSP is a complicated process, and there has been some demand for a software tool that would make the process easier. This video has that solution. It explains how to use a program called PSPtool to create the magic memory stick and Pandora's battery much more easily than you could otherwise. Follow these instructions and play those homebrews!

How To: Change your camo colors in CoD4 for Playstation 3

Have you tired of the stock camo setting that you can clothe your character with in Call of Duty 4: Modern Warfare? This video has the solution for you, at least if you play the game on the Playstation 3. It explains how to use the Sony Vegas Pro video editing software to change the colors of your in-game camo, allowing you to dress your character in a much wide variety of colors. Stand out from all the other kids at the frag party with this helpful technique!

How To: Perform the hand on body magic trick

This trick is great for anyone who is easy to fool - from little kids to drunk bar patrons. In this two part video, you will learn how to perform a super simple trick - no props needed - that will make everyone laugh. Ask a friend to touch a spot anywhere on their body with one hand that they are unable to touch with the other hand. Watch them stuggle and then check out part two of this clip to see the solution!

How To: Solve advanced ratio problems in algebra

Need to know how to solve complex ratio problems in basic algebra? 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 free math tutorials, you'll learn a system for finding solu...