Education: Page 10

If you've ever taken high school chemistry, you may already be familiar with the ability of liquid nitrogen to freeze soft object so hard that they will shatter. This video will teach you a fun experiment utilizing this property of liquid nitrogen. It invovles gummi bears frozen and soaked in water or liquid nitrogen (or not, for the control) and then smashed in a most satisfying way.

Gummi Bears are great for science experiments due to their gelatinous makeup. In this video you will learn how NOT to make a Gummi Bear conduct electricity, but in fact how to use them to demonstrate osmosis and crystallization by preparing them for conductivity.

Does someone keep drinking part of water bottle and leaving them around your house or office, taunting you with their wastefulness? Thanks to forensic technology, it is possible to catch the culprit with easy household materials. This video will show you how to use super glue to lift fingerprints off of a water bottle where normal fingerprint-lifting technology would not be sufficient. Plus, you get to use a heat gun! Always fun.

Here are some simple and fun tricks you can do at home with candles to astound and impress your friends and family. Create an extinguisher using baking soda and vinegar, use smoke to relight a candle and create a vacuum using a candle.

Discipline means obedience to an authority or to strict observance of certain rules and regulation.A disciple is expected to obey his teacher or master.So the word "discipline" is derived from "disciple".If  there is no discipline in  society everybody will suffer.Discipline implies subjection or subordination of one will to some external authority or to one own self imposed principle.Freedom should not be confused with discipline.Even freedom cannot be enjoy without discipline.Man is social...

Know someone who's full of hot air? Grab them and make a heat motor with this cool home science experiment with Mr. G. When air is heated, it rises. This experiment uses that natural law to create a simple, spiraling heat 'motor'.

Bernoulli's Principle states that when an incompressible fluid moves through different sizes of tube, the fluid's speed changes. This simple do it yourself science experiment presented by Mr. G shows this plain and simple.

Have you got the balls for this experiment? You'll need at least 4; a basketball, tennis ball, squash ball and simple rubber ball. With these in hand, Mr. G will show you how to experiment with potential and kinetic energy while launching these suckers nearly into outer space. 3, 2, 1.... blast off!

With this cool science trick by Mr. G, learn how to weigh something you can't even see! Using a stick, some string and two balloons, you can see in your very own home that air, invisible as it is, has weight. This is a good example to show atmospheric pressure.

Staying in tonight? Here's something that could occupy you for days. Fimoculous has posted the mother of all "Best of 2010" lists: a collection of over 150 lists from across the web in 37 different categories. Sit back, crack out the champagne, and take in all the amazing things that happened in the past year.

Have an old-school tabula recta lying around? No? Then just print out the chart below. Nothing ensures better password security than this centuries-old cipher technique. Here's how it works, via Wikipedia:

A group of nano-scientists from the University of Glasgow have created the world's smallest Christmas card, measuring in at 200 micro-meters wide by 290 micro-meters tall. (BTW, a micro-metre is a millionth of a meter, and the width of a human hair is about 100 micro-meters.)

Make lightning and generate tens of thousands of volts in your own kitchen at home using ordinary household objects! Mr. G demonstrates the amazing Triboelectric Effect and explains the electron exchange via adhesion and separation that makes it all possible.

CalTech's Kenneth Libbrecht reveals the sublime beauty of snow crystals when photographed with a specially designed snowflake photomicroscope. The physicist is author of the Field Guide to Snowflakes and The Secret Life of a Snowflake, and recently posted an instructional guide for growing your own snow crystals.

Umbra, penumbra.

Why does the world work the way it does? Linda Dong takes basic scientific principles and translates them into beautifully simple, explanatory images.

Meet Vi Hart, our charming host. Vi is a self-labeled "mathematical musician", who burns paper instruments, cuts food into mathematical shapes, twists balloons into mathematical models, and makes mathematical music with candy buttons.

The Geminid meteor shower 2010 is tonight, climaxing sometime between midnight and dawn Tuesday. Usually, the Geminid meteor showers in December are awesome spectacles, one of the most intense meteor showers of the year, but this year the moon will be out until after midnight, lessening visibility. But just because you can't see the meteor shower this year, doesn't mean a meteorite or two didn't sneak into Earth's atmosphere, hurdling to the ground, waiting for you to find it. So, get your...

Does size matter? When it comes to optical illusions, it does. The size of a human brain's visual cortex determines how he or she sees the world, meaning not everybody observes optical illusions in the same way.

Move over NASA— SpaceX is taking over.

Some of these look like illustrations done by adolescent sci-fi/anime nerds. Totally unreal. A selection from National Geographic's best space pictures of 2010:

Was Napoleon's death really due to stomach cancer, or was it arsenic poisoning? Some scientist believe the latter. Arsenic poisoning was a deadly weapon in that era, because it was undetectable when administered over a long period of time, making murder seem like natural causes. But if arsenic (As) is poisonous to most multicellular life, then what's with the newest NASA discovery?

WonderHowTo favorite NurdRage once again triggers the inner mad scientist in all of us (well, all of us WonderHowTo-ians at least). Below, watch what happens when steel wool- found in every common household Brillo Pad- is lit on fire.

Bottled-beer chuggers the world over already know that letting air into your beverage with a straw makes it pour faster into your mouth. Did you know, however, that the same technique can be modified and used to empty a fluid into another container (or onto the floor) even more quickly? This video will show you how to use a modified straw technique to introduce air into a large bottle of water or other drink bottle, causing the contents to empty at a torrid pace.

Yep, anything (on Earth). Below, BBC One's Bang Goes the Theory demonstrates how normal sunshine can become a lethal heat-ray of 3,500 degrees celsius (with the aid of a high-performance solar furnace). That's hot enough to melt rocks.

Hydrazine sulfate has many uses, but most notably, it's been used under the trade name of Sehydrin, a treatment for anorexia, cachexia and some even think cancer. But for we DIY chemists, it's useful for something entirely different— as a substitute for the more dangerous pure liquid hydrazine in chemical reactions. NurdRage shows you how to make it via some hypochlorite and the Ketazine process.

Missions to Mars are far and few between because the fuel is so costly. Solution? A pair of scientists are proposing that elderly astronauts are sent on one-way missions to Mars, to boldly go... and not come back:

In this free video math lesson YAY MATH, we learn how to factor trionmials using the Berry method. With mathematics, as with anything else, not everyone progresses at the same rate. Algebra is no exception. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. Whether you need help finishing your homework or studying for that next...

In this free video math lesson YAY MATH, we learn how to work with imaginary numbers in intermediate algebra. With mathematics, as with anything else, not everyone progresses at the same rate. Algebra is no exception. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. Whether you need help finishing your homework or studying for...

In this free video math lesson YAY MATH, we learn how to divide a polynomial by a linear factor (e.g., x - a) using synthetic division. With mathematics, as with anything else, not everyone progresses at the same rate. Algebra is no exception. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. Whether you need help finishing your...

In this free video math lesson YAY MATH, we learn how to divide two polynomials using long division. With mathematics, as with anything else, not everyone progresses at the same rate. Algebra is no exception. Happily, in the age of Internet video tutorials, this isn't a problem. Those who progress quickly can go beyond what's being taught them and those who are struggling likewise have all the time in the world to catch up. Whether you need help finishing your homework or studying for that next...

Measuring the distance from the Earth to the moon doesn't require NASA equipment. The ancient Greeks did it, which means 2,000 years later, you can do it, too.

Fiction books are often cited as being more entertaining than non-fiction books as you get to travel to exotic, sometimes alien worlds and the characters can sometimes be supernatural, with cool powers like flying or being able to heal instantly (vampires, anyone?).

Here at WonderHowTo, we are often presented with morally questionable HowTo's. When it comes to stocking our library, we have to weigh in the community value of indexing tutorials with potentially negative repercussions. Where is the line when it comes to areas like weapons, sex, and drugs?

Not all people can catch up with  formulas, and problem solving skills, but with the right attitude and proper time management there's no doubt you'll pass the subject.

In this video, we learn how to take a reading comprehension test. First, you need to learn how to deal with the questions that are asked on the test. To help, you should learn how to read quickly instead of reading the entire paragraph. Read the questions first so you know what to look out for as you are reading the paragraph presented to you. This will save you a lot of time when you are taking the test and give you some time to go over the questions. When finished, you will get a great grade...

In this tutorial, we learn how to write a literature review for thesis writers. The three elements are: discuss the most relevant theory, introduce and define key terms, and discuss recent research in the field. You will need to include the most important literature, quote directly only if you discuss at some length, and use indirect quotes as well. Focus on notions you will use in your empirical study. It should be ten pages or less and sources of all quotes must appear in your works cited...

In this video we learn how to make a candy DNA model. First, purchase some black licorice and another color. Grab two each from the pack and then purchase some gummy bears. After this, pick out four different colors from the gummy bears bag. Take your scissors and put the licorice together. Cut one inch pieces so you end up with six of them. These will represent the sugars in the molecules. Once you do this, you will take the string and push it through the holes that are in the licorice. Layer...

In this video, we learn how to do an animal blubber (fat) glove experiment. You will need: a big bowl with ice water in it, 4 plastic bags, thermometers, and some vegetable shortening. To start, you will take the shortening and scoop it into plastic bag and then stick one of your hands in it. After this, stick two bags over your opposite hand with the temperature into it. Then, you will stick each of your hands in the ice water and see which one lasts longer in the ice water. The fat should...