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...
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...
Planning your vacation? Going on a trip? You definitely do not want to be caught without all your necessary documents. In this video, the viewers will be exposed to the basic list of documents that the viewers should bring with them on their trips. In addition, this video will describe some of the common problems that people encounter while traveling and offer basic solutions for these problems. Therefore, this video is highly recommended for any individual who may go on a trip at some point ...
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.
Need to change a little décor in your home or apartment? Blinds are the perfect solution for bringing a room to life... or maybe just for blocking out the sun. This video tutorial will show you how to fit roller blinds. Roller blinds can be kind of tricky, but if you have a little help, it's a cinch. Now, go fit a Roller blind!
Need to change a little décor in your home or apartment? Blinds are the perfect solution for bringing a room to life... or maybe just for blocking out the sun. This video tutorial will show you how to fit wooden venetian blinds. Wooden venetian blinds can be kind of tricky, but if you have a little help, it's a cinch. Now, go fit a wooden venetian blind!
Need to change a little décor in your home or apartment? Blinds are the perfect solution for bringing a room to life... or maybe just for blocking out the sun. This video tutorial will show you how to fit vertical blinds. Vertical blinds can be kind of tricky, but if you have a little help, it's a cinch. Now, go fit a vertical blind!
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.
The first video is an elementary explanation of triangular numbers and a Gauss demonstration for the sum of the first 100 natural numbers.
Master Gardener Rosamarie Maddox asks John White, Doña Ana County Extension Agent, about problems facing her pecans, grapevines, and native shrubs. An unidentified insect found on her pecan tree is identified by John White as a Twice Stabbed Ladybug. This ladybug is a useful insect that often over-winters on the tree and helps takes care of the aphid problems faced by pecans. Pink fuzzy coating on pecan nuts is also brought up. The coating is normal for pecan and contains bitter tannin. Too m...
One of the hallmarks of augmented reality's coming of age is that the technology is starting to find a home in business categories that are less obvious compared to typical AR enterprise use cases.
While some in the augmented reality space are tweeting about future amazing immersive experiences and others are showing off cool experiments, Microsoft continues to move forward with tangible business solutions right now that show how the HoloLens can improve business.
Over the past week, we are seeing more companies capitalizing on services leveraging augmented reality. One company secured funding to expand their service, while two other companies grow its own services through acquisition.
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Baking soda is a powdery miracle. Not only is it the secret ingredient to making mashed potatoes fluffy, it can help you make authentic-tasting soft pretzels at home and caramelize onions in half the time. It's actually got lots of surprising uses you might not know about, and one of them is that a pinch or two can correct sour and bitter tastes in your food.
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?
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.
Kate Hemmings on The Crafts Channel shows that covering a cake isn't as tricky as you may think. You will need a type of icing that rolls out, such as fondant icing. Ideally, you will want to have fondant icing with glycerine, and so the Pettinice brand is excellent in this case. If you use this icing, you will not encounter problems with cracking of the icing when you try to shape it over the cake.
Norway-based production tools company Vizrt is putting the real into augmented reality with its broadcast AR solution that's designed to keep sports fans (and other audiences) watching.
This year's holiday shopping season is shaping up to be fertile ground for augmented reality to show its worth, as both Walmart and Target have crafted immersive experiences designed to engage shoppers in the coming weeks.
Augmented reality platform maker Zappar and its marker-based augmented reality technology have been around well before Apple and Google brought markerless AR to mobile apps.
The augmented reality industry has an insatiable lust for 3D content, which makes an investment of $48 million into Matterport a no-brainer for investors.
The display is one of the most critical components in augmented reality hardware, and on Tuesday, one of the companies making that component, Avegant Corp., closed a funding round of $12 million to support development of next-generation AR displays.
On Tuesday, original design manufacturer (ODM) Flex used the CES spotlight to help introduce a smartglasses reference design aimed at companies interested in bringing their own enterprise AR headsets to market.
China's e-commerce site Alibaba has been making heavy investments in augmented and mixed reality startups. In February of this year, they led a $793 million round of Series C financing of Magic Leap. And now they've just invested in Israeli-based InfinityAR, which acquired $18 million in its Series C financing.
Guacamole is one of those things that tastes far better than it looks. To someone who isn't a huge fan of avocados, guacamole's texture can appear slimy, and on top of that, its chunky green appearance brings up visions of Nickelodeon-style slime. What's even worse is the browning that occurs in just a few minutes of being exposed to air, and it's even worse if there's salt in it. I love guacamole, but that brown is enough to turn off even the most enthusiastic connoisseur. Few things are mor...
Hydrazine sulfate has many uses, but most notably, it's been used under the trade name of Sehydrin, a treatment for anorexia, cachexia and some even think cancer. But for we DIY chemists, it's useful for something entirely different— as a substitute for the more dangerous pure liquid hydrazine in chemical reactions. NurdRage shows you how to make it via some hypochlorite and the Ketazine process.
This video answers the question, how do you safely clean an LCD? Remember that LCD’s do not have glass so you have to be careful how much pressure you apply, as well as the kind of cloth you are using, or you can damage or scratch the screen.
So.. you spent 200, 300 or even 600 bucks on your new iPhone and now you have no reception! It seems as though Apple was so busy developing cool new apps for it's latest creation that it forgot about the fact that its.. oh right.. also a PHONE. If your new iPhone 4 cuts out every time you hold it, check out this clip. This tutorial will offer some awesome tips and speedy solutions to this annoying problem. So, if you are about to run up to Cupertino and tell Steve Jobs where he can stuff his ...
Are you sick of spending a ton of money on not so great cleaning supplies? Well, if cleaning the screens around your home are the problem, check out this tutorial. In this video you will learn how to make a super effective cleaning solution for your TV, PC, laptop, iPod screens, etc for about a dollar! This couldn't be easier to do, and your screens will be clear and shiny in no time.
In this video tutorial, viewers learn how to make "hot ice". Users will need sodium acetate. Begin by putting the sodium acetate into a pan. Add a small amount water to the sodium acetate. Heat the mixture on a stove until the sodium acetate has dissolved. Pour the solution into a container. Do not pour in any undissolved crystals. Put the container into the freezer or refrigerator for a while. When the solution cools down to room temperature, take it out. Touch the sodium acetate and it will...
The man was requested to solve a short, basic chemistry exercise. He starts by explaining the meaning of the terms involved in the problem: molecular mass, empirical formula and molecular formula. He also explains the way the are connected, for a better understanding of the way the exercise is solved.
Ron Hazelton shows you an easy an effective way to wash windows. In a warm bucket of water you add one tablespoon of dishwashing solution, a scrubber with sleeve is used to apply the solution to the window, and dried with a professional quality squeegee. Each step is shown and explained in full detail to ensure the best possible completed outcome. After watching this video and walking yourself through the steps a few times you can wash a good sized window in about a minute.
This video in the Education category will show you how to make hot ice using Sodium Acetate Trihydrate. For this purpose you will need a pan, 100g of Sodium Acetate Trihydrate, 25ml of water, a wooden spoon and a glass. Take the Sodium Acetate Trihydrate and put 100g in the pan. Then place the pan on a stove and turn to medium heat. The Sodium Acetate Trihydrate will start to melt. In about five minutes when it has melted fully, add 25ml of water. Let the solution simmer for two minutes while...
