How To: Use a digital multimeter
This is a tutorial for how to use a multimeter to take volt and amp measurements of a silicon solar cell and solar modules.
This is a tutorial for how to use a multimeter to take volt and amp measurements of a silicon solar cell and solar modules.
In this video, we practice describing solutions in English. For example, if the problem is that you have stomach problems, the solution is that you should go to the doctor. Should simply means a good idea or a recommendation. You could also say the solution is that you need to go to a doctor. For the next example, if your problem is that your car won't start, this means your car will not start. You could also say that your car does not start, which is a good way to describe the problem. For t...
Watch this science video tutorial from Nurd Rage on how to make silver different colors by electrochemical anodizing. Without using paint, you can give a silver surface various colors by anodizing it.
Lenovo is teaming up with Google to debut the first Project Tango smartphone, which uses 3D sensors to map the world around it. The Tango phone will be able to give directions without the need for GPS, and it can augment reality to bring things like dinosaurs and cars into your environment.
Utility tool apps provide extremely powerful and useful lightweight replacements for your parents' heavy archaic tools—everything from flashlights to tracking systems and more.
Solving 6 math problems using different methods is the idea behind this video. First, you make three rows of numbers vertically from 1-9. All the numbers match across for example, 1 1 1, 2 2 2, 3 3 3, and so on. Each set of numbers creates a mathematical problem who's solution is the number six. These problems require some thinking to solve. The only one that is immediately apparent is 2 2 2=6 which is, of course, 2+2+2=6, (3x3)-3=6, the square root of 4 =2. This done on all three of the four...
Samsung created quite a buzz when it debuted a built-in heart rate sensor on the Galaxy S5 back in 2014, but amazingly, not many other manufacturers decided to follow suit. It's really a shame, too, since data from a heart rate sensor would go perfectly hand in hand with the increasing fitness- and activity-tracking features that most smartphones sport these days.
As the cooler weather starts rolling in your pet will need more than just his natural coat to keep the shivers away. Take him out in style by designing a simple yet elegant tailored coat that will fit him perfectly. Here is an easy lined tailored coat with a nice thick comfort strap to keep him snug. Watch this video and follow the accompanying written instructions.
Watch this science video tutorial from Nurd Rage on how to make potassium permanganate with Dr. Lithium with potassium nitrate and manganese dioxide.
Given a equation of a line, you can graph the line. A system of equations is nothing but equations of more than one line. In a single equation all the points that lie on the line, satisfy the equation of the line. Similarly a solution of a system of equations is points that satisfy each and every equation of that system. A system of equations can have a single point as solution when the lines intersect at a common point, or have a unlimited points in solution when the lines overlap on each ot...
A method for solving a linear system with no solution is described. The method is described in 4 steps. The first step in the method is designed to solve a linear system that is described consist of “solving by graphing”. Details for “solving by graphing” first consist of finding points to graph using two different equations. The second step in the method consist of placing the points from both equations on the same graph in order to find out if bo...
Two ladies are discussing how to prepare to decoupage a wooden bangle bracelet. They are using a broad wooden bangle crafted from birch wood that can be purchased at a local craft store and printed tissue paper, for example, one in an animal print. This is part one of a three part series.
In this tutorial, we learn how to mount your laptop to your exercise equipment with Chris Gardner. This is a great way to stay active and get your work done at the same time. First, grab some measurements of your machine, then grab aluminum bars that are the sizes of the front of the bike. Cut out the pieces so they are the size that you need, then mount onto your machine and place your laptop onto it! You can use screws to remove this, or you can leave it on to use whenever you would like wh...
In order to properly measure flour with a scale, you will need the following: flour, a scoop, and a scale.
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 video guide for measuring your foot and calf size correctly. This is important in order to properly fit shoes. It's a video intended for athletes and individuals sensitive to their foot and leg health. This is brought to you by a retailer that fits wide or narrow feet with proper shoes. You'll need a wall and a measurement guide. Measure for both feet and sometimes you have two different sized feet.
This two part video walks you through the steps of solving a strange chess problem. Don't fret, any question you may have, will be answered. Watching this video will make you help you to solve that ever so difficult chess problem.
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...
A very simple recipe to make an excellent homemade bubble solution! With only three cheap, common household ingredients, make a LOT of this great solution! A good way to save some money. A little bit goes a long way. Thanks, and enjoy!
Want to test whether the soil sample or a water sample contains boron, watch this video. As shown in the video, the first step is to create test specimens of various concentrations using a simple turmeric and ethanol solution as a base for comparison. The basis of this experiment is the fact that curumin present in turmeric reacts with boron to form a reddish compound and so the result of this reaction can easily be verified visually.
You can make saline (salt) or lye (NaOH) solutions. So first you will have to arrange these things to do it which are 2 500ml bottles, 1/2 LB table salt, measuring cup, kitchen scale (optional) and pan for heating. Now first heat the
Before taking on any big interior design project, you always want to make sure you have the right information. Especially with purchasing new drapes and curtains. This video will show you an easy way to obtain the correct measurements for different styles of curtains and drapes.
This video from the magazine Extreme How-To shows you how to install a new insulated basement floor. You'll be using insulated subfloor, tongue-and-groove natural cork panels, and modular carpet tiles. Make sure that you take all necessary precautions. Just follow along with the video, and make sure you make the correct measurements and installation. You'll have a beautiful finished floor in no time!
Measurement of the ingredients in a cocktail is very important. In this online video, our bartender shows you step by step how to measure ounces when pouring from alcohol bottles.
In this science tutorial learn how to measure temperature using a thermometer. This how to video goes over Celsius and Fahrenheit measurements.
Check out this brief explanation on how and where to measure your horse for harness sizing. The positions of measurement in this video are an approximate guide only.
Learn how to set-up, hide, show and adjust these non-printable items (grids, guides and rulers) in Photoshop. We also revisit "how to override the default unit of measurement"
Watch this science video tutorial from Nurd Rage on how to make a mirror silvering solution from silver nitrate, ammonia, sugar, and sodium hydroxide.
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.
Ever wondered how to make a tee shirt? With a little cloth, some thread, a sewing machine and some direction, it's as easy as baking a cake. If you want to start designing your own cool T-shirts with your favorite fabrics, watch and learn!
Is your computer's LCD screen getting so dirty you can barely make out what you're typing. Use a few household ingredients to keep a clear, sharp image on your LCD screen without clouding or scratching it.
If you’re selling your home, you’ll need to know its square footage. Why pay a professional when you can measure it yourself?
Earlier this month, when Apple announced at WWDC that iOS 12 would include an augmented reality tape measure called Measure, iPhone watchers seemed impressed by the new addition to the company's AR arsenal. Well, just a couple of weeks later, on June 19, it appears that Google remembered it had its own Measure app as well.
A well designed sleeve is very important to creating a top or jacket that fits comfortably. Get your correct measurements before you begin. Please view the following step-by-step instructions and accompanying video and diagram to create the basic sleeve.
A clogged drain is not only an unpleasant but seems to happen at the most inconvenient time. Good thing there is a simple way to unclog most minor stoppages with a few household products. Be your own plumber and keep those drains free and flowing.
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.
With the rise of smartwatches and wearables, you'd almost expect to need one to get a heart rate reading. While these devices can be helpful, not everyone has or wants to wear a gadget all the time to track their BPM. Luckily, when you combine Google Fit with a popular third-party heart rate measuring app, it will make things easy for you.
In many ways, the latest version of the MakeSpace iPhone app, now updated with ARKit, makes it the bizarro world IKEA Place; instead of measuring your living space for new furniture, it measures your furniture so you can move it into storage.
Not all smartphone chargers put out the same amount of current. The adapter in your car probably charges your phone a lot slower than the one plugged in at your bedside, and if you use wireless charging, it may be a bit slower still.
Want to make boring old colorless water brighten up on command? Well, you can control the color of water with this little magic trick. Actually, it's not really magic, but a classic science experiment known commonly as the iodine clock reaction, which uses the reactions between water and chemicals to instantly colorize water, seemingly by command. You can use different colorless chemicals to produce different colors, and you can even make the color vanish to make the water clear again.