In this tutorial, we learn how to make your own nylon. You will need: pipettes, pipette filler, forceps, beaker, stir rod, sebacoyl chloride and hexanediame solution. Now, pour some of the hexanediame solution into the small beaker. Add in a food coloring if you want to make this a specific color. After this, add in 4 cc's of sebacoyl chloride and carefully drip into the side of the beaker. You should see a layer of where the two liquids are after this. Now, take your tweezers and reach into ...
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...
Having trouble with word problems in algebra? Watch this video to clear a few concepts as well as to learn how to systematically tackle word problems in exams.
This video presents a mathematical puzzle which is to be solved by the viewer. The solution is posted in an alternate video, but this video presents the problem of a four digit number which is the square of a smaller number. The first two digits of the square are the same as each other and the last two digits are the same as each other as well. The video calls for the viewer to find the integer whose square is this four digit number without the use of a calculator, although abacuses are allow...
Android smartphones have all sorts of connectivity chips built in, including Bluetooth, Wi-Fi, GPS, NFC, and mobile data. But what about AM or FM radio, two of the most common methods of wireless communication?
In this how-to video, you will learn how to fix scratched games with a simple solution. You will need a few rags, alcohol, and a surface to place the disc on. Take the rag and pour a tiny bit of alcohol on to it. Next, put the alcohol away. Take the cd and rub it with the rag. It should be rubbed all around the entire cd. Take a dry tissue and rub the cd. Make sure all the alcohol is removed. Your disc should now work with no problems. This video offers a good solution to all your scratched g...
Learn how to use a Neti pot, otherwise known as a saline sinus wash to help clear out your nasal passages. This is a homeopathic remedy for sinus problems or any issues you may have with your nose. Take the packet that comes with your Neti pot, and dump it in. Fill the pot to the guideline with lukewarm water. This will create a saline solution once mixed. Stick the end of the Neti pot in your nose, and tilt your head to the side, allowing gravity to send the saline solution trough one nostri...
The tutorial teaches the audience an alternative way to make jerky without the fire. The ingredients needed include soy sauce, garlic powder, brown sugar, white sugar, black pepper, ground ginger, onion powder, oriental five spice, cayenne pepper and kosher salt. Meat is put into a metal bowl with the mentioned ingredient and after a period of time, the meat is tossed around in the metal bowl so all the meat will have a chance to soak in the solution. After soaking off the solution from the m...
This video teaches the secrets of cleaning and changing your belly button ring in simple steps. First add some saline solution or salt water solution in a paper towel and rub on your new ring to clean it. To change the ring on your belly button, unscrew the old ring and remove it carefully. Now insert the new ring through the hole present in your belly carefully. Finally screw the inserted ring carefully to finish.
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 ...
In this video the instructor shows how to solve a system of equations by elimination method. First you need to know how many possible number of solutions you can get by solving a system of equations. There are three possibilities. In the first case there are two lines with different slopes, so they intersect at a point which is the solution to that system. In second case there can be two lines with same slope but are parallel to each other. In this case the system has no solution. In the thir...
You can learn how to make rock candy. The process is very simple. You only need water and sugar. You put the water to boil and then add a cup of sugar. You mix it up and then put it in the sink and poor it into a glass. Then a screw is inserted into the glass to get moisture into the solution. Take it out, leave it for 3 days, then after 3 days sink it again in the solution and then leave it to dry for 1 week.
The method explained in this video is a very simple method to get rid of fruit flies. Materials required for this method are:
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...
Unlike other slow methods of clearing up acne, this method of getting rid of pimples is supposed to work almost instantly! By simply using a mixture of baking soda and water and stirring until it forms a paste, you should apply the mixture to your face or other areas, which are prone to developing pimples. After leaving the solution of your skin for about an hour, rinse off the solution. The result should be skin that is clean and acne free.
Patty Moreno shows us how to test your pond's PH, and see if the conditions are right for fish. • First get a freshwater PH test kit.
Use a neti pot daily to prevent sinus infections and promote easy breathing. Check out this Howcast video tutorial on how to use a neti pot.
Going to school to be a nurse? Then one of the many techniques you will learn is how to irrigate a bladder. In this nursing how-to video our host demonstrates how to do a Nesbitt Young irrigation. This type of bladder irrigation demonstration is not a CBI, continuous bladder irrigation, it is an intermittent irrigation. However it does use a continuous infusion of sterile solution into the bladder, most often, using a three-way irrigation closed system with a triple-lumen catheter. Infrequent...
Dr. Diana Wehrell-Grabowski provides a brief overview of Buckminister "Bucky" Fuller's accomplishments in this video tutorial.
Pumpkin carving and decorating is a favorite October pastime. After you've carved an amazing design or face into a pumpkin or two, you want to show it off through your window or set it out on your porch for the neighbors to see.
The pressure underwater is undeniably strong. If you were to fill a balloon with water and take it underwater, it would not burst but would stay the same size because liquids are not compressed. The pressure is the same, inside and outside of the balloon. If you were to fill that same balloon with air instead, the lower it dives into water, the more it shrinks, until it eventually can't take the pressure anymore and bursts.
In this video, we learn how to determine if a point lies on a line in standard form. In order to do this, you will need to substitute the X and Y value with the ordered pair that is given. The X value is the first number and the Y value is the second number. Re-write your equation, substituting in the numbers to the appropriate spots. Now, simplify the equation by doing multiplication with the negatives and positives (if given). When you get through the equation, you will end up with the solu...
Want to know why the sky is blue during the daytime and red during the evening and morning? A simple experiment is all that is needed.
In this video, we learn how to clean brushes using Genesis cleaner for reborn dolls. First, dip the brush into the cleaning solution and allow the dye to drain off of the brush. After most of the paint is gone from the brush, dip it into water and continue to clean until the water running over it runs clear. Continue to repeat this process for all of the different brushes you have used. When finished, lay the brushes down on a flat and dry surface, then let dry overnight or until they are com...
Your driveway is not perfect and over time, can succumb to bothersome cracks that make driving very uncomfortable. They can even make walking harder, and are unsightly. But Lowe's has the solution to fill them up in a hurry— QPR's Pavement Crack Filler.
In this video, we learn how to make a mosaic picture frame with ceramic micro tiles. First, glue on the four gemstones. These will go on all four corners of the frame. Next, place the square mosaics onto the base. You will place these around the edges of the frame that are perfectly square. After this, cut the other squares in half and glue them onto the entire frame in the middle of the squares on the frame. Next, let the frame dry for two hours, then mix the powder together with water and r...
If you're looking for a low cost solution for a portable hamstick antenna pole for your ham radio, then check out this video.
It may not sound like an obvious solution, but using a humidifier during the cold winter months, can actually be more efficient and make your home more comfortable. Having low humidity levels inside your home cause several things to occur, but one being the use of your furnace. This can raise prices and cause you to waste more energy.
If you're looking for a new way to show your feelings without buying a sappy Hallmark greeting card, then your solution: Make your own card.
In this how to video, you will learn about Chemiluminescence and the oxidation of Luminol. The first solution is Luminol and NaOH. The second is K3 and H202. Luminol is used to detect blood in crime scenes. It reacts with Iron in Hemoglobin. As you can see in the example, it illuminates the chemicals in the dark. This is why it is very useful for crime scenes. It can be used even if the blood is not visible with day light. Thus, it is an invaluable chemical in the name of science and justice....
This video shows the method to use differential equations to represent growth. Consider the function y=multiple of C & e raised to kx or Ce^(kx). Differentiating it with respect to x, we get dy/dx=kCe^(kx) or ky. So, the solution of the differential equation dy/dx=ky is Ce^(kx). There are two possibilities in the function y=e^(kx). It can be exponentially growth or decay function. This depends on the value of k. If k is greater than 0 or k>0, we get an exponential growth function. On the othe...
In this how-to video, you will learn how to make your own gak. All you need is borax, food coloring, and school glue. Take five tablespoons of water and mix one teaspoon of borax in a plastic container. Take one tablespoon of white glue and mix it with a tablespoon of water before adding it to a different plastic container. Add three or four drops of the food coloring of your choice. Now, mix it with a spoon and add two teaspoons of your borax solution to the new mix. Once that is done, mix i...
The guy first gives the definition of differential equations. He explains that a differential equation is an equation that contains the derivatives of an unknown function. He then gives some examples of differential equation and explains what the equation's order means. After that he gives an example on how to solve a simple equation. He calculates it and gives examples of graphs. Then he explains what a general solution is and how to narrow down the number of solutions using data from the pr...
In this video, it is demonstrated how to get rid of a "FEE" error message on a Nikon DSLR camera. The solution is fairly simple and quick to do. First you will want to turn your camera on to where you see the "FEE" error message on the LCD screen. Next, you will set the camera's aperture ring to the highest number available. After this, the last step is to lock the aperture ring by using the switch. After doing this step, your camera should return back to normal working order and the "FEE" er...
There's nothing like milking a dairy cow straight from the teat. Of course, before milking you'll need to sanitize the teat with a sterile solution and paper towel. This video tutorial demonstrates the proper methods of milking cows using a standard milk machine pulsator for professional results.
To rainproof your camcorder start by purchasing a lens hood for it. This lens hood helps to rainproof the camera lens but it also prevents flaring from the sun. Take a zip lock bag and cut the corner off of the bottom so that it creates a hole that is big enough for the lens hood to fit through. Put the camera in the bag and push the lens hood through the hole in the bottom of the bag. Take a rubber band and wrap it around the outside of the plastic bag just behind the lens hood to keep water...
Ever have the problem of people messing with your word documents? This guy shows you the solution by telling you how to create password protected encrypted word documents. The process starts with your open file. Clicking on save as... and in the popup window clicking the tools button in the bottom left corner and clicking general options. There it shows you text entry boxes, one for setting a password to open the file, another to set a password for rights to modify the file. Enter your passwo...
How do you add mixed numbers with uncommon denominators? Well, this video provides a detailed step by step explanation as to how to go about such problems. It also provides an example and applies the required techniques to acquire the solution. The video is very precise in its instructions and does not skip any steps. Therefore, the viewer should have absolutely no problem understanding the concepts behind adding mixed numbers with uncommon denominators after viewing this simple and helpful v...
Ingredients: 1 cup Sooji (semolina)
Don't know how to create the night vision effect using Photoshop? Well, this video is the solution for you. First of all, select the image that you want to create the effect on. Then you need to open up a new black and white adjustment layer. In the setting box that pops up, go under the preset drop down box and select red filter. Next, go down and check the tint box. After wards, the viewers can set their own photo and saturation base on their own preference.
