Practical Concept Search Results

How To: Draw with basic concepts and techniques

In this video, we learn how to draw with basic concepts and techniques. To shade with different pencils, you will start out by doing a light touch on the pencil and then push down harder to create a darker shade. Use different pencils to get long and wider lines from the shading. A 4B and a 6B pencil will have lines that look the same, but they are different in the way they apply graphite to the paper. Practice using all of your pencils to get an idea of how they write, then you can choose wh...

How To: Use the Empirical Rule w/ standard normal distribution

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...

News: MIT's Temporary Tattoos Turn Your Skin into a Touchpad

We're inching closer towards the singularity—that point where technology advances to the steepest slope of the logistic function S-curve and simply skyrockets at a rate we've never seen before. Somewhere along the way, the line between humans and the tech we rely on will become blurred, and MIT's latest project might very well be a step in that direction.

How To: Understand the hemoglobin & its role in the body

An in-depth explanation of the structure of the hemoglobin molecule, the process by which it binds with the oxygen in the lungs, how it dumps the same oxygen molecule at the appropriate location in the body and how carbon-dioxide gets attached to the hemoglobin molecule are the topics which the narrator in this video explains with diagrams and a few equations.

How To: Understand velocity, acceleration, and free fall

In this video the author explains the various concepts like speed, velocity, free fall speed etc., Speed tells you how fast you are going, i.e. it is distance divided by time taken to travel it. Velocity is nothing but speed along with direction. Now she tells that acceleration is used to measure the rate of change in velocity. So she says that acceleration is difference in velocity divided by the time. She also explains that there can be acceleration with out change is speed as there can be ...

How To: Ask "How do you like your job?" in English

This video teaches English-language learners how to respond to questions beginning with the words "How do you like". There are two types of questions in English that begin with the words "How do you like". The first kind requires an answer in the form of an opinion. The second requires that the answer come in the form of giving instructions. The video explains the difference, then gives several examples for each to model practice. For example, "How do you like the weather?" is a question whic...

How To: Understand the basics of apple tree pruning

Each year an apple tree should produce three things: new growth, fruit buds on last year's and older growth, and fruit on those fruit buds formed in previous years. In order to keep an apple tree in balance and fruiting, one must prune. However, pruning is too often done poorly. In this, the second installment of his series on practical apple tree pruning, Stephen Hayes of Fruitwise Heritage Apples looks goes over what to look for in a good secateurs, or pruning shears, and how to thin out sp...

How To: Make a homopolar motor

Turn yourself into an electromagnetism maestro with one of the simplest motors known to man—the homopolar motor. It's the "simplest motor" because of its absent polarity change. The magnetic field does not change the direction or strength. It consists of only three parts; copper wire, round magnet and battery. It produces really low voltages, which means there's no real practical application for this motor, but it sure is fun to make! Try your hands at the homopolar motor—watch the video and ...

How To: Reduce fractions with uncommon denominators

Does reducing fractions scare your mathematical mind? Reducing fractions can be a tricking concept, but with a little instruction and a bit of practice, you will soon grasp this concept and be reducing fractions as if it were your second nature! In this video from Math Problem Generator, learn how to reduce fractions with uncommon denoimators.

How To: Convert decimals to fractions

At first, the concept of converting decimals to fractions sounded very difficult. But after watching this video and following the step by step instructions, it was easy. It is important to know the basic concepts of numerals, i.e., tenths, hundredths, etc. They provided an example of making .12 into a fraction and then reducing it to an easily understandable number. Search on WonderHowTo to solve more math woes!

How To: Understand propositional logic

In this video the author talks about the basic concepts in propositional logic, explaining how important this concept is to understanding the basic concept of logic. He says that propositional logic is also called "sentential logic" or "statement logic". He states that a proposition is synonymous to claim, statement or insertion. He states that propositional logic deals with logical relationships between propositions taken as wholes. He states that in proposition logic the proposition is deal...

How To: Find the area of a kite

Math isn't all about finding the area of drawings.. you can apply those same concepts to finding the area of actual objects. In this video tutorial, learn how to find the area of a kite in a video made for students, by students. If you are familiar with geometry and finding area, you will most likely be able to master this concept quickly.

How To: Draw a manga woman in knights armor

Digital Painting and Drawing: Learn to draw woman face profile or side view, a knight in armor, facial figure, head and figure slightly step by step with costume step by step. This drawing, painting using Photoshop video tutorial shows you from basic rough sketching to finish drawing quick concept for comics cartoon illustration, manga, anime. The video demonstrates how to quickly create an efficient concept design from concept idea into visual. Video tutorial. Cartoon, illustration, comics, ...

How To: Begin drawing with contrast

Watch this instructional drawing video to begin drawing forms using contrast. Contrast is only the concept of things being different from each other. Creating an interesting composition is all about drawing creating a happy imbalance of. Play with this drawing concept using color, shadow, and quantity of objects.

How To: Purpose and repurpose vintage necklaces and brooches

If you're a habitual thrift store and consignment store shopper, then you know that every now and then you'll stumble upon a vintage necklace or ring that has one part that's sooo pretty, but the rest looks pretty tacky or too old. Give new life to the little bits of vintage jewelry you've collected by repurposing them into a brand new necklace.

How To: Palm read Madonna

In this tutorial, we learn how to palm read Madonna. Her hand shows she has a practical mind and her fingers are the same length. This gives a sign that someone is ambitious. The ring on her first finger gives the person a manner of difficulties and problems connected with their career. The pinkie finger away from the ring finger shows a need for independence. A square palm says that she has a need to move and other people are attracted to her. The lines on her hand how that she loves others ...

How To: Use a USB keyboard to type on your Wii

One of the few technical advantage the Nintendo Wii has against its high-tech rival the XBox 360 is that it allows users to browse the web on their console. Trying to do so using only a Wiimote, however, is impractical. Did you know that you could use a USB keyboard instead? This video will show you how to connect a USB keyboard to your Wii, making it MUCH easier and more practical to use the Opera web browser available in the Wii Store. Now can surf the web on a giant screen while reclined o...

How To: Glam up your old bobby pins

When shoemaker Robert Pinney invented the first plain but practical bobby pin in 1868, he surely never imagined all of the elaborate variations that would be available today! In this tutorial, a young crafter teaches you how to glam up your bobby pins. Using costume jewelry, sequins or other cheap stuff and a little bit of glue, you can give your old bobby pins a fun new look.

How To: Draw a male torso or man's body for anime or manga

This instructional video will teach how to sketch and draw the male body (a man's torso or upper body, chest, abs, rib cage, and shoulders) for character design, comics, manga, anime and video game concept art. Learn step by step how to draw from a simplified torso and upper body using geometric shapes. Learn how to sketch and construct a basic body form quickly. The video demonstrates and narrates how to quickly create an efficient concept design from concept idea into a fantasy or sci-fi ch...

How To: Master weight and balance concepts with NASA

Join NASA (National Aeronautics and Space Administration) as they give the basics on the concepts of weight and balance as applied to aerospace. There's no better place to learn about aviation theory than NASA, the United States government's most infamous agency--the powerhouse of space exploration.

How To: Get Back Lock Screen Widgets in Android Lollipop

Being fixated on all of the great additions to Android 5.0 Lollipop, it can be a little difficult to take notice in the features that went missing. For instance, lock screen widgets. It's speculated that the lack of practical use for lock screen widgets and the implementation of the revamped Lollipop lock screen may have lead to their departure, but some of us want them back!