In this video, Do It Your Self Central demonstrates to viewers how to clean a dirty penny by using common household products, namely vinegar and iodized salt. He suggests to put 1/2 cup vinegar and 2 teaspoons of iodized salt into a cup. This solution will be used to clean the penny. He demonstrates the power of the solution by holding the penny into the mixture for a few seconds. After only a short time, he shows the dramatic change between the portion that was dipped in the solution and the...
This free video science lesson from the Home Scientist demonstrates a simple technique for creating a color-changing solution with sodium permanganate, sodium hydroxide and sugar. For all of the relevant details and detailed, step-by-step instructions, as well as to get started trying this experiment yourself, watch this home-science how-to.
This video tutorial is in the Education category which will show you how to make sodium bromate and potassium meta-periodate. This experiment uses toxic chemicals and releases harmful gases. First you have to make a saturated sodium bromide. To this solution then add a small amount of potassium dichromate. The solution now becomes concentrated. Then make the circuit as shown in the video. You need a 3 - 5 ohm resistor in order to reduce the current. Then let the cell run for around 6 hours. S...
In this tutorial, we learn how to use ninhydrin to reveal latent prints on paper. This will work out because you will be spraying a special liquid onto the porous area. After this, you will turn on a black light and then be able to see the fingerprints appear in purple! Be careful with the solution, because it's flammable! This will also stain your skin, so make sure you wear gloves and don't let it contact a surface you don't want stained. To mix the solution, you will combine both of the so...
Maria Cleaveland shows us how to clean a coffee maker in this tutorial. It's important to clean out your coffee maker because calcium and lime can build up throughout regular use. One option is to use a cleaner liquid that you brew just like coffee, but is cleaning solution. You will then run two water coffees after this to make sure all the solution is out. Vinegar and water also work to clean out the coffee maker in case you don't have the cleaning solution. If you do this regularly, your c...
Is your computer screen clouding up? Computer screens accumulate dirt and dust quickly causing screens to get foggy. Thanks to How To Make Anything, you can learn to do or fix pretty much anything! In this video, learn how to make a homemade solution to clean that dirty computer screen and make it look like new!
In this video the instructor shows how to solve systems of linear equation by graphing. A system of linear equation is equations of two lines that are to be graphed on the same coordinate axes. Now take the first equation and write it to form y = mx + b. Now extract the value of slope m and graph the line as shown in the video. Similarly graph the equation of the second line as shown in the video. Now if the two lines intersect at a point, that point is the solution to the system of that line...
This tutorial looks at how to describe a linear system without actually graphing it. In order to do that, you will need to convert both equations of a problem into the Y=mx+b format. Once you have done this, you will be analyzing the m and b values. There are a few rules to follow. If the slopes (or m) and the Y intercepts (or b) are equal, there are an infinite number of solutions (or dependent equations). A second rule is if the slopes are equal and the Y intercepts are different, then the ...
This is a very interesting mathematical instructional video on how to find rational equation with no solution. How to solve the equation and check the answer. Let us take the example m over m-3 minus 4 is equal to 3 over m-3. In this equation we get m-4m+12 over m-3 is equal to 3 over m-3. When we simplify it further we get -3m +12 = 3. Or -3m = -9 and m = 3. This video teaches you very clearly how to solve a rational equation with no solution.
Learn how to find latent finger prints on brass surfaces, such as fired cartridge cases. Called the Acidified Peroxide method, using only white distilled vinegar and hydrogen peroxide that you can find at your local drugstore, you can uncover fingerprints that is usually impossible to see using other methods. After mixing the vinegar and hydrogen peroxide the solution should start turning a greenish color around the brass object after 5 to 10 minutes. After you see the green color throw away ...
Elimination in mathematics is used to find the solution set of a system of equalities. This video tutorial shows how to use elimination to find the solution set of a given equation and offers several examples to illustrate the process. Before applying this method, the equation must be in the form “Ax +By=C.” When graphing a set of mathematical equations that intersect, the answer to the elimination is the point on the graph where the two lines cross.
Many times, the task bar and some of the desktop icons on your computer disappear. This being a common PC problem, the fun video has shown three different ways of solving the problem. The presenter has done a good job by enlarging the key images at most critical points in the presentation. He has also provided more than one way, in fact three ways of solving the problem. There are multiple solutions available with Windows but a very few presenters offer more than one solution. Each proposed s...
Tired of soldering? Well, there's a solder-less solution to joining pipes together. Check out this handy video tutorial on how to join copper pipe with "Just For Copper" pipe glue. Just For Copper is a solderless bonding solution for copper pipes and fittings. This is very useful in areas where a blowtorch cannot be used.
See how to turn a coin pyramid upside down in three moves. This ten coin trick is as easy as any other coin trick, with a simple solution. Show your friends and see if they can figure out the solution. It just takes three moves and that's it.
Lye can cause chemical burns and the fear of getting burned prevents arts enthusiasts from making homemade soap. Watch this video to learn how to safely make lye solution so you can go ahead and unleash the creative child in you.
This recipe for bubble solution will produce bigger-than-normal bubbles. It's simple and easy to double, triple, quadruple, or however many times you want to multply it.
A loop knot can be used to attach most fishing lures and all hooks and flies. A loop allows greater action of the lure or fly and always ensures the line will pull straight down the shaft. With knots that cinch tight agains the eye of the hook, the may move off to one side causing it not to pull straight.
It's nearly impossible to keep a stovetop clean when cooking, at least, in my experience. No matter what I do, liquid and solid food bits fall to the surface and around the burners every single time, creating a hard-to-clean mess.
We've shown you how to make water change color on command, but how about just half of it? What if I told you that you can split a solution right down the middle and make the color disappear from one side, just by shining light on it?
Do you own an HP printer? If so, it may be vulnerable to malware attacks. Researchers at Columbia University discovered that 25% of Hewlett-Packard printers have significant vulnerabilities that put your printer in danger from hackers—even your home. With a budget of just $2,000, researchers Salvatore Stolfo and Ang Cui were able to hack into the printers using remote firmware to install malware, and in some cases even cause the printer to catch on fire. The main issue is with the printer's c...
Want to know how to decorate a cake like a pro? While you can blow hundreds of dollars on classes, one of the easiest ways to learn how to do it yourself is by watching the pros do it.
Love candy? Want to make it? Then candy melts, or candy wafers that you can pour into a mold and melt into any shape you desire, are your best and easiest bet for making beautiful confectionary creations.
This is the best and easiest way to get a well-trained dog, by using what's called the Kikopup method. Once you have your pup doing the desired behavior, you can then train your dog to have stimulus control and use a release cue.
Leg locks are some of the easiest and most effective submissions in MMA, and form an essential part of your ground game. Watch this video to see Joanne and Risha of MMA Girls teach you how to set up leg locks.
Tutting is one of the easiest and most stylish variations of popping, and it can make nearly any hip-hop dance routine more interesting. This video will teach you one cool tutting combo with great step-by-step instructions so that you can add it to your repertoire and use it to run people off the dancefloor.
Google is the biggest and best search engine on Earth, and if you are a webmaster and want your website to be a big success it would really behoove you to know as much about how it works as possible. The Google Webmasters series of videos and website were created to teach webmasters, SEO professionals, and others how Google works by answering their questions and giving them insights into how they can best integrate and utilize Google's functionality to improve their business. This video will ...
Once you've created a walking animated character in Flash, if you want them to look realistic you're going to have to give them a shadow. This video will show you how to do just that using the same movie clip as your character, which is the easiest way to do it. Don't let your character be afraid of their shadow. Watch this video.
One of the tastiest and easiest sidedishes to prepare are butter beans. In this tutorial, learn how to pan fry beans and season them to perfection. This side goes fantastic with tons of cuisines and will please young and old. Enjoy it alone or with a full dinner. Yum!
In this clip, learn how to make one of the tastiest and easiest dishes you will ever cook - arepas! Arepas are basically mini sandwiches that come from Venezuela. All you really need is a bit of oil and PAN cornmeal, and then stuff it to your heart's desire.
Cats are notoriously difficult when it comes to medication. It seems like while you can trick a dog into eating medicine, a cat will see you coming from a mile away. In this video, Dr. Lauren will show you the easiest way to get your cat to take medication. Follow along and avoid scratches and screaming the next time your kitten is ill.
Wallpaper is totally outdated, isn't it? Have you ever moved into a new house and decided - yikes - this wallpaper HAS to go? We have all been there and in this tutorial, Lucky Larson will show you exactly how to get rid of those icky flowers or ugly stripes. Lucky uses enzyme spray and a simple putty knife to remove the paper in the easiest way possible.
The shoulder pads and helmet are the iconic pieces of gear that every football player wears in every game. This video teaches you, as a football coach or parent of a football player, how to make sure your charge or charges wear properly fitting shoulder pad to maximize safety. As the video says, the shoulder pads are the easiest piece of football equipment to fit, but making sure they fit properly is still vitally important to prevent injuries to the chest and shoulders.
If you want a more personalized iPhone, then one of the easiest things you can do is change your background them. This video walks you through the steps to customize your Apple iPhone's background theme. First thing you will need to do is open up Cydia and search for "WinterBoard". With WinterBoard, you can look at all of the theme options that you can use to personalize your iPhone.
In a previous video by NurdRage, he showed you how to make manganese sulfate ("How to make MnSO4 from MNO2 (two separate ways)"), but there can be situations where the iron in the precursor would carry over and contaminate the product. Recrystallization doesn't work for this high level of contamination, so a different approach is needed.
John Jacobs' Golf Schools present Quick Tips: Putting. Director of Instruction Tom Perkins helps you limit your strokes on the green.
Find out how everything in a chemistry lab works, from pipettes to burners to recrystallization to storage. You'll get precise instructions on how to work and perform certain scientific duties in the chem lab, whether it's chemical or just ordinary high school science.
This is a short instructional video showing you the easiest way to draw an impossible triangle. Follow along with the demonstrator to capture the lines to sketch this physical enigma. Just because it can't exist, doesn't mean you can't render it. Watch this video tutorial and learn how to draw the impossible triangle.
The easiest of flips explained: The back tuck from a standing position. This gymnastic backflip will surely impress.
The first video is an elementary explanation of triangular numbers and a Gauss demonstration for the sum of the first 100 natural numbers.
Get started with computer programming by learning the very basics. Check out this video to learn how to program a pop up message box using Visual Basic 6. Visual Basic is one of the easiest-to-learn programming models out there, so it's great for beginners to computer language and programming.
