The instructor goes about giving a crash course on finding the vertex of a parabola. This is a very nice review of the subject but not really a complete lesson. The instructor fails to explain many of the symbols and other expressions used. The simple way taught by the instructor is the short cut to finding an otherwise complex problem. The nice thing about this technique is that there are no exceptions to this short cut. This is not what someone should learn if they wish to understand the co...
In this video tutorial viewers learn how about Brazilian jiu-jitsu. This video describes the concept behind Brazilian Jiu Jitsu including: technique vs strength, large vs small, angles, and the weak muscle groups of the body. Teaches viewers how to defend against bigger and stronger opponents. Viewers will learn how to fight more effectively. This video will benefit those viewers interested in mixed martial arts and willing to learn new fighting techniques. These techniques can be used for se...
So, you're speeding up.. on a skateboard, in a car, running.. and you want to calculate the rate at which you are traveling the faster you go? Check out this tutorial and learn a valuable physics lesson. This video will show you step by step how to calculate acceleration in physics and determine if an object is speeding up, slowing down or moving at a constant velocity. Acceleration is based on the direction of the object's velocity and acceleration vectors. That may seem like a mouthful, but...
Watch this video to learn how to draw a right trapezoid using given specifications for lengths of sides. A right trapezoid is a four-sided shape with two right angles and two parallel sides. First, draw the long base. Then draw a 90 degree angle at one end of the base, using a protractor. Mark the angle to show it is 90 degrees. Then draw another 90 degree angle at the top. This is the first video in a set--to finish learning you must watch the next segment. If you watch these videos you will...
In this video the tutor explains about the concept of Equivalent Fractions and how to find them. She states that equivalent fractions are fractions with same value. She explains this with an example saying that a fraction can have many forms in their unreduced states and all these fractions will have the same value which can be obtained by reducing them. She shows that we can make an equivalent fraction of any fraction by multiplying the numerator and the denominator by the same number and go...
In this tutorial the author explains of how to find percentages using examples. He explains that x percent of some number y is x multiplied by y and divided by 100. He goes on and explains this concept with numerous examples. He suggests a short cut to movie the decimal point of a number two digits to the left to divide that number by 100. The author demonstrates many more similar tricks and short cuts using which one can easily solve percentage problems. So if you are looking for a good tuto...
This video teaches students how to multiply and divide to solve equations in algebra. The teacher made this video specifically for his class because he points out page numbers from the textbooks that the students can go back and review. He is standing in front of a dry-erase board explaining various examples. This video is intended for people who are very new to this concept because he progresses very slow through his examples and tends to repeat himself. I think this is great for students wh...
This video will show you the simple mathematical concept of solving a single-step equation using multiplication. This is very useful for equations in which you need to solve for a variable and the variable is a part of a fraction. The example provided in the video shows a very fast and simple way to solve these types of problems. By multiplying your fraction by the denominator of the fraction, you will cancel out the fraction and multiply the other side by the same number. By following these ...
In this tutorial the author explains of how to compute percentages of a given number. He explains that x percent of some number y is x multiplied by y and divided by 100. He says that of means multiply and percentage means for hundred. He goes on and explains this concept with numerous examples. He suggests a small trick to move the decimal point of a number two digits to the left to get it divided by hundred. The author demonstrates many more similar tricks and short cuts using which one can...
In this tutorial the author shows how to find out the missing side of a triangle which is similar to an other triangle. He explains the concept of similar triangle using diagrams and by showing that similar triangles have equal corresponding angles and parallel sides. Now he labels sides of similar triangles and intends to find out the length of unknown side. Now in similar triangles, as the lengths of sides are proportionate he shows how to write a equation of proportion and solve it finding...
In this episode of Science Theater Dr. Carlson helps you understand the concept behind Density and how it relates to Mass and volume and how to calculate the Density of a substance if its Mass and Volume are known. The Density of various metals is demonstrated using aluminum, tin, zinc, lead and copper of the same mass but different sizes. The easiest way to measure the density of a substance is also mentioned. Next, Dr. Carlson measures his own density using a scale and a bathtub.
In this video, learn how to calculate one of the most important puzzlers in math - the area of a triangle. This is one of the first things you will learn in geometry and is helpful in math as well as science classes. Check out this tutorial if you are having trouble grasping this concept. This video will show you how to calculate the area of a triangle easily and in detail. Master this and you will pass that next test for sure!
In this video, Bud Brown explains that it's useful to learn to say "I am about to (do something)" or "I just finished (doing something)" in another language. The Vietnamese word for "about to" is "sap" pronounced "sup". To say "I'm about to go out" in Vietnamese is "Toi sap di choi." "I'm about to eat" is "Toi sap di an com." To indicate that you just finished doing something, use the Vietnamese word "vua" pronounced "vuh". "I just finished eating" is "Toi vua an com." "I just finished workin...
Addition got you down? An expert instructor from Khan Academy walks you through the mysteries of adding two numbers together by breaking it down into easy to understand terms. Fun animated chalkboard examples make it easy for kids and adults alike to learn how to add. Also demonstrates how to add using the number line. Introduces the concept of numbers less than zero. Includes addition of both large and small numbers, and how to carry over the numbers on more complex problems.
In this video tutorial the instructor explains about the concepts of standard normal distribution and the empirical rule and how to use it to solve an exercise. He starts by explaining about standard normal deviation saying that in a standard normal deviation the value of mean is zero and the value of standard deviation is one. Now he draws the standard normal deviation by drawing a bell curve on an axis. Now he points the mean and standard deviations on it. Now using these concepts he goes o...
In this tutorial the author explains the concept of Newton's Second Law of motion which states that force is equal to mass times acceleration. So the equation to compute force F is F = m * a, where m is the mass of the body and a is the acceleration produced by the force on that body. He explains that even our weight is our mass times the gravity. So now he explains that mass of a body is constant and only our weight changes depending up on the situation we are in. If you want a clear underst...
This is a one of the coolest videos about arithmetic sequence, it has a very clear explanation about the arithmetic sequence formula and also more than one example which would help the viewer to learn this formula and its implementation in a easier way. This video is a also very helpful for the people who appear for interview since it is a very basic formula that every science student must remember.
The author in this video explains the concept of fundamental rule of proportions. Fundamental rule of proportions means cross multiply. He explains that to arrive from an equation which has fractions into the one without equation multiply the top of left side with the bottom of right side and equal it with bottom of left side multiplied with top of the right side. In this way proportions can be cross multiplied to arrive at an algebraic expression. If you want to master the rule of proportion...
This video is about the concept of "foofing" when shooting flash photography. For this, you need a camera with a flash that can be directionally adjusted. The process involves simply pointing the flash at either a wall or the ceiling, to avoid having the light from the flash strike the subject directly. This can create several different lighting and shadowing effects, giving photos a less "harsh" look, and also giving them a more "professional" look. The color of the wall or ceiling used will...
Learn how to draw with a concept of perspective based on a camera's field of vision. This instructional drawing video demonstrates how to draw with an awareness of objects as they exist within space. How will an object change, in the camera's of vision, as you slide it back and forth? It's important to draw things as they appear rather than how they might actually exist.
Watch this piano tutorial video to learn how to change major triads and chords to minor triads and chords and play "Last Christmas," written by George Michael and performed by Wham! and Jimmy Eat World, on piano. This lesson uses the five-finger pattern concept to teach you how to change major triads to minor triads and how to apply this skill to "Last Christmas." The tips in this helpful how-to video will help you change any major chord to a minor chord and play Wham!'s "Last Christmas" on p...
Ever wanted to become a programmer? This Delphi Training Series: Programming 101 is a sequence of training videos designed to teach the complete beginner how to become a programmer using Delphi.
While sliding doors is far from a new concept and will be obsoleted once we see wider support for multiple backgrounds (CSS3), it is still a good one for your bag-of-tricks. The theory is that if we have an extra hook in our markup, we can apply two overlapping background images to a single spot of text. When that text grows or shrinks, these overlapping images and reveal more of themselves creating the illusion it is a single expandable graphic. In this video screencast, we do a quickly exam...
By following this tutorial you will learn the concept of selections in GIMP. Whenever he says "layer mask" he really meant "selection mask".
Magic Leap is making it easier for developers to share their spatial computing experiments with other Magic Leap One users.
Just as the modern travel experience has improved thanks to the internet, Airbnb wants to make your stay in a stranger's home easier by way of augmented and virtual reality.
Google largely helped to pioneer the concept of a steering wheel- and pedal-free self-driving experience when it began testing its Firefly pod-like vehicles a few years ago.
Thanks to "Mean Girls," we now know that Halloween is the only time you can dress like a slut and get away with it. Which means that if your concept of a witch costume still includes a crooked nose, warts, and a green face, then you're living way in the past, honey. Blast forward to the future—and the sexier side of things—by dressing up as a sexy witch this Halloween.
At one time or another, every parent has thought about taking off the belt, but that's frowned upon in our current society, perhaps even illegal. Even using you hand could be too harsh for the child's sake, but there are ways to get your unruly tot under control. Toddlers are often headed for trouble, but you can steer them in the right direction without spanking.
The idea of finding the area under a curve is an important fundamental concept in calculus. Consider a function y = f(x). Now the area under the curve is to be calculated. The area under a curve problem is stated as 'Let f(x) be non negative on [a, b]. Find the area of the region lying beneath the curve y = f(x) and above the x-axes, from x = a to x = b. Note that finding the area under a curve will imply that you are dealing with a non negative function. The way to approach is to divide the ...
Concept/ 3d character artist, Xia, teaches viewers how to draw an old man's face. Draw an elongated circle that will serve as the face. Make a horizontal line on the upper portion of the face and draw the eyes. Draw the nose and the eye brows accordingly. Achieve an older look by drawing creases along the nose. Draw the ears right along the same level as the eye line. Add more creases on the forehead for a more aged look. Draw deep cheekbones. Start drawing the beard. Add more creases below t...
Stumped on what frame to use for your favorite piece of artwork or photo? The perfect frame will make your painting, photograph, or piece of artwork stand out on your wall. Here's how to find an ideal match.
With a torque wrench, you can set a bolt to the proper tightness and cut down on wear and tear. You Will Need
Hak5 isn't your ordinary tech show. It's hacking in the old-school sense, covering everything from network security, open source and forensics, to DIY modding and the homebrew scene. Damn the warranties, it's time to Trust your Technolust. In this episode, see how to edit Super Mario World levels with Lunar Magic.
A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.
A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.
"Visharu Adavu" involves swinging of hands in different directions, sideways, up and down. The leg movements are simple and straight in one line. The concept of shoulder pulls is also introduced later in this Bharatanatyam tutorial. This 8 part how to video teaches the eight steps in this Indian traditional dance move.
It's the coolest pool party game ever named after a 13th-century explorer. Marco Polo is a perfect way to cool down and have fun.
Incoming phone calls and FaceTimes, whether you want to answer them or not, will take over your entire iPhone's screen — no matter what you're in the middle of doing on the device at the moment. You could be browsing the web, playing a game, or chatting on social media. It doesn't matter, you'll get interrupted. But you don't have to put up with it anymore.
A very important thing to keep in mind when you're creating images from scratch or even putting things into existing images is the concept of perspective. Bert goes back to basics to teach this concept, starting with a horizon line and adherence to the rules of mother nature.
