This video demonstrates the quotient rule as applied to exponential expressions that appear in the form of, to use the word loosely, a fraction. The name, "quotient rule", refers to the fact that it applies to expressions which are divided by other expressions. The video begins by explaining that the quotient rule allows expressions in this form to be simplified if they contain like bases (i.e., the terms are of the same variable). The quotient rule allows the expression to be simplified by s...
In this tutorial, we learn how to make polymer putty with household materials. You will need: borax, white glue, water, 3 plastic cups and spoons, and food coloring to color your putty. Now, dissolve 4 tbsp of Borax in 2 liters of warm water. Then, prepare equal parts of glue and water together. To make this, you will need 2 parts of the glue solution to 1 part of the Borax solution. Once you mix these together, you can add in some food coloring to it. Pour this into different cups to make di...
Looking for a primer on how to find the nth term of a geometric sequence? See how it's done with this free geometer's guide. 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).
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun and Mr. Excel, the 42nd installment in their joint series of digital spreadsheet magic tricks, you'll learn how to look up a picture in Excel. See a VBA solution and a formula Solution using the INDIRECT function and named ranges.
Khanacademy teaches us how to handle simple inequalities (less than or more than). In an equation, we usually have one solution. In problems involving inequalities, there is a whole set of answers. For instance, x minus five is less than 35. The answer for x is a whole series of numbers that when five is taken away from it, is less than 35. This equation is handled like any other equation involving an equal sign. We add five on both sides of the equation and the answer for x is any number tha...
This image editing software tutorial shows you how to create an array from a rasterized object in Photoshop CS3. An array (in design terms, not programming terms) is an object that duplicates itself around a pivot point. So learn how to work with arrays to create designs in this Photoshop video.
The Dukan Diet is the latest diet fad to sweep America, after dominating France for years already. It's been called the French Atkins diet, and is in fact a high-protein weight-loss solution, but sounds considerably healthier than Atkins ever did. This video will explain the Dukan Diet to you and how you can get on it.
Dead or hot pixels are one of those annoying camera problems that won't make you buy a new camera but will piss you off for years. There's a free solution that may work for you though if you have a Canon 5D or 7D, and this video will show you how to do it with the sensor cleaning function.
If your windshield wipers don't come on when you turn the switch, then try out the solutions in this video! First, check to see if there's a blown fuse. If that's okay, next check the power going to the wiper motor. You have to take the wiper arms off to get to the motor. Watch Scotty Kilmer in this video for all the remaining troubleshooting tips for broken windshield wipers.
If you want to get more apps for you iPhone than those offered by the standard store, but are still intimidated by jailbreaking despite the fact that it has recently become legal, this video offers a solution for you. It will show you how to get and use an app called OpenAppMkt to get more apps for you iPhone or iPod Touch without needing to jailbreak it and access the Cydia app store!
If you haven't bought a new iPhone or iPod Touch since the 3G and 2G models of those respective devices, iOS 4 has probably been a major problem for you. It slows down those devices mightily, but there is a solution. This video will show you how to adjust some basic settings in your phone or MP3 player to make it run the new operating system faster and allow you to keep enjoying you device as you have for years.
Need to find the nth term in a given arithmetic sequence? See how it's done with this free video math lesson. Need help finding the 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 seri...
In this video tutorial, find out how to copy and paste HTML links embedded in the text with a breeze. No longer will you have to worry about re-entering every single link one by one. This video will give you a quick and easy solution to solving your most worrisome problem. Enjoy!
Tired of having plain old roast chicken the way mom used to make it? Bobby Flay has the solution that is sure to get you excited about chicken all over again. This recipe for a grilled whole chicken will bring great new flavor to your bird. Don't forget to flatten it out first for a faster, smoother cooking process.
Your mother used to remind you to wash behind your ears now make sure you keep your dog in tip top health and clean their ears too. Dogs depend a lot on their hearing but can build dirt and wax in and around their ears which can be irritating or lead to infection.
Watch this science video tutorial from Nurd Rage on how to restore silver with electrochemistry. You can restore old silver with aluminum foil or a battery by simple electrochemistry.
John Park poses a kitty conundrum: Who's going to feed the cat while you're on vacation? Using a motor from an old VCR, he creates an automated feline feeder. While building this Make: magazine project, John learned that newer VCRs have safeguard technology, limiting access to the motor. Watch John as he demonstrates his solutions to this challenge.
Is it magic or is it an illusion? See for yourself when you watch this video tutorial on how to make a matchstick stand up on its head. There's an easy solution to this magic trick, easier than you think. You don't need to be a magician to perform this match standing on its head trick. Anyone can do it!
A chemical demonstration of the synthesis of nylon using different chemical solutions.
Watch this instructional video to get a bubble solution recipe that will yield impossibly giant soap bubbles. Make sure you use a clean bucket and a paint impeller to stir it.
If you put mothballs in a solution of vinegar and baking powder, the balls will collect air bubbles; then after they cause the balls to rise, the bubbles pop, and the mothballs drop.
Smartglass maker ThirdEye Gen, Inc. has introduced an augmented reality solution for enterprises that includes their X1 Smartglass and a suite of software applications that enable completely hands-free computing.
When developing for the HoloLens, keeping a constant 60 fps (frames per second) while making things look beautiful is a challenge. Balancing the processing power to display complex models and keeping the frame rate where it needs is just a straight up painful process, but a solution seems to be on the horizon.
Though you may scrub every inch of your kitchen, there are plenty of trouble areas that are nearly impossible to get clean: gunked-up tile grout, rust in the sink, and caked-on burners and grates on the stove. As far as burners and grates go, you're in luck, because there's a simple solution to returning even the grossest ones back to their original shine. The Key Is Ammonia
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 ...
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...
If you have a washing machine or dryer that tends to wobble a lot, you can easily fix this problem using a couple different solutions. A wobbling machine can be a problem for people who live in an apartment and can result in damage to your machine or the surrounding area.
Want to reduce a fraction to its lowest terms? It's easy. See how it's done with this free video math lesson. 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).
Need a little instruction on how to find the lowest terms of a proper or improper fraction in basic arithmetic? Learn how with this free video lesson. 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).
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.
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:
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.
Learn how to primitively dry meat to make jerky for use in long term wilderness survival. You cannot always eat fresh meat. Drying meat into jerky is also good for traveling light as it dehydrates it into a lighter substance. Making jerky is also a cool thing to do while on long term hunting expeditions or safari.
