How To

Hoping to liven up a friend or loved one's birthday party with a rendition of "Happy Birthday"? Playing this famous tune is fairly simple—all you need is some basic piano knowledge to really nail this piece. We've walked you through everything you need to...

Just bought a tortoise and wondering whether your new friend is male or female? Your tortoise is unlikely to just come right out and tell you, so you’ll need to do some investigation. Even if you don’t know what species your tortoise is, there are a few w...

U.S. Army uniforms and gear can vary based on rank and occasion. The easiest way to identity rank is to look for the insignia that each member of the Army will display on his or her uniform. Insignia will be unique to each rank, and the insignia of office...

This will require a little bit of experience with Game Maker. Don't do this for your first game.

What is variance? Variance is a measure of how spread out a data set is, and we calculate it by finding the average of each data point's squared difference from the mean.[1] X Research source It's useful when creating statistical models sinc...

Covariance is a statistical calculation that helps you understand how two sets of data are related to each other. For example, suppose anthropologists are studying the heights and weights of a population of people in some culture. For each person in the s...

The most common way to deliver a batch of files from a Linux system to another user is by using the tar command. When you tar a directory, you can easily roll up a group of files into a single file that's easy to share. The tar file, also known as a tarba...

The tonsils are glands found at the back of the throat. Sore throats, which can be quite painful, are usually a result of inflamed or irritated tonsils. This can be due to post-nasal drip from allergies, a virus like the common cold or flu, or a bacterial...

Writer’s block is frustrating, but it’s an extremely common problem; even the best writers suffer from it on occasion. You may be a bit of a perfectionist who’s worried about making a mistake, or you may be struggling to find something to write about. Wha...

Our feet are some of the hardest working body parts we have, so it's a good idea to take excellent care of them! There are a number of things we can do to help provide our feet with extra care, including removing dead skin and calluses from the bottom of...

Most people want to find the perfect mate. It's an age-old sentiment that we all have someone out there waiting for us. But soulmates are not magical creatures, and they won't fall out of the sky and into our laps. A real soulmate is someone you can spend...

Before embarking on a major project, a financial plan is a requirement. A project financial plan — also known as a project budget — identifies all of the costs associated with a project. These costs are then tailored to fit within the financial resources...

Studying can feel like an enormous challenge, especially when tests and exams are looming. However, study is about learning for self-betterment, not just to pass exams. And since knowledge takes a while to accumulate and be well understood, the more time...

Budgies (or parakeets) are highly intelligent little birds that make fabulous companions. But budgies don’t communicate and emote in the same ways as other pets, like cats and dogs. It takes some close observation and a trained eye to tell if your feather...

Being respected is one thing, but commanding respect is another. Some people just seem to command respect from the second they walk in the room. Research shows that we sometimes judge leaders not on how they perform, but on how they look.[1] X Research...

Are you having trouble catching Giratina in Pokémon Platinum? Don’t use your Master Ball just yet—with a little patience and persistence, you can take on this Legendary Pokémon in the Distortion World with more common types of Pokéballs. Read on to learn...