Principle Difference Search Results

How To: Make a cartesian diver

In this two-part science tutorial, learn how to make a cartesian diver, easily & inexpensively. A Cartesian diver, sometimes known as a Cartesian devil is a classic science experiment, named for René Descartes, which demonstrates the principle of buoyancy (Archimedes’ principle) and the ideal gas law.

How To: Avoid wrong answers on the SAT critical reading area

In this Education video tutorial you will learn how to avoid wrong answers on the SAT critical reading area. Five principles to keep in mind are rephrase the question and predict the answer, answer the question being asked, find evidence in the passage, extreme answers are suspicious and finally remember a little wrong is all wrong. To rephrase the question, read 2 lines before and after, ask the question in your own words and find the answer choice that best matches your prediction. Now comi...

How To: Derive the annual compound interest formula

In this video tutorial the instructor shows how to derive the formula to compute interest compounded annually. He starts with explaining the basic concepts like principle which is the amount you borrow and the rate of interest or annual percentage rate (APR), which is the rate at which you pay the interest up on the borrowed principle. He shows that the amount after the end of one year is amount A = P(1+APR),and he goes on and generalizes how to compute it for n years. This video shows how to...

How To: Experiment the law of inertia

Newtons proposed the concept of inertia. According to him an object at rest tends to stay at test and an object in motion tends to continue in motions unless acted up on by an external force. This is the principle of inertia. The tendency of the body to continue to stay as it was is called its inertia. You can demonstrate this principle with a simple experiment. As shown in the video when the hoop is pulled out the pen cap falls in to the bottle. Here the hoop is acted upon but the cap is not...

How To: Do the salsa tai chi flip

In this video you will learn a simple double-handed turn using the same principles as leading a right turn. Then you'll learn a slick little combo for switching hands as a starter for any other combos you might learn in your life!

How To: Fold and fly a paper hang glider

Hang gliders are exciting, but if you can't fly in the sky, free as a bird, then try the next best thing-- making a paper version that you can make soar through the air. This four-part series from Science Toy Maker will show you exactly how to fold and fly an origami paper airplane hang glider, plus you'll get valuable information behind the principles that make it work. Also watch the last video for the principles that make it possible for life-sized hang gliders to move along the sky withou...

How To: Maintain that centerline

This episode discusses the four causal aerodynamic factors leading to the overall left turning tendency that an aircraft experiences during flight. Join Scott Ludwig and Seth Hardley as they teach about Torque Effect, Spiraling Slipstream, Gyroscopic Precession and P-Factor and how these principles will affect your aircraft on your next training flight. During the takeoff roll, remember to maintain centerline at all times and don’t get lazy feet.

How To: Build a laser microphone

Listen to conversations over long distances with a homemade laser listening device. All you'll need is a laser pointer, tripod, old pair of headphones, photocell, a recording device, and the step-by-step instructions in this how-to video. The creator of this video tutorial does not mention the need for sophisticated software. But the principle is quite sound. If you can figure it out, you can eavesdrop and spy on whoever.

How To: Factor the difference of two squares

Need a little help figuring out how to factor the difference of two square? Learn how with this free tripartite 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 study for that next big test).

How To: Factor the difference of squares

In this video the instructor shows how to factor the difference of squares using a formula. The formula to find the difference of squares can only be applied if you have two perfect squares. The formula is (a * a - b * b) = (a - b) * (a + b). That is the difference of squares of two numbers is the product of sum of two numbers and difference of two numbers. So when you need to find the difference of squares of two numbers substitute the values in the above formula to directly solve for the fa...

How To: Factor the GCF and difference of squares

In this video the instructor shows how to factor the GCF and difference of squares. When you are asked to factorize a number or monomial or a polynomial, the way to do is break it down into individual terms. When asked to factorize a binomial, try to pull out any common terms and factorize the simplified equation. When you are asked to factorize the difference of squares use the general formula which states that the factors of (a*a - b*b) is (a-b) * (a+b). Now substitute the given values in t...

How To: Calculate the difference between two dates in Microsoft Excel 2010

Learn how to find the difference between two dates with MS Excel 2010's DATEDIF function. Whether you're new to Microsoft's popular digital spreadsheet application or a seasoned business professional just looking to better acquaint yourself with the Excel 2010 workflow, you're sure to be well served by this video tutorial. For more information, including step-by-step instructions, take a look.

How To: Factor the sum and difference of cubes

Need to know how to factor the sum or difference of two cubes? Learn how with this free video algebra 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 study for that next big test).

How To: Differentiate between a fear and a phobia

What's the difference between a fear and a phobia? Well, a fear is a transitory thing. Phobias are fixed. It's the difference between being frightened by a particular spider or scared of spiders in general. For more information on the difference between fears and phobias, watch this video guide from Health Guru.

Prev Page