In this video we will learn how to write simple two-column proofs. We will first cover algebraic proofs, then we will go over the elements of an axiomatic system, the video ends with an introduction to geometric proofs.

If you seek a new do without the harsh chemicals, these steps will give you the locks you've been looking for.

Modern milking parlors use machines, but milking a cow by hand is an ancient art. Here's the "udderly" perfect way to do it.

Howcast - Learn how to tune drums from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn how to pick a drum set from drum teacher Jason Gianni in this Howcast drum video.

Woodturning this incredible giant English oak burl bowl, out of massive blank what weights approx. 15kg or 33lbs total and 40cm/16” diameter. This huge burl / burr is full of amazing grain characteristics and also found a living creator...

Clay soil lacks the porosity to allow plants to grow well in it. By adding the right materials to it, clay soil can better sustain plant growth.

Turn old watch faces into appealing bracelets by using an eco-friendly recycling technique.

Howcast - Learn about Latin drumming from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn about drum independence and coordination from drum teacher Jason Gianni in this Howcast drum video.

Ahoy, mateys! While modern boaters don't talk like pirates, they do have their own language. We're going to help you crack the code.

Howcast - Learn about hip-hop drumming from drum teacher Jason Gianni in this Howcast drum video.

Get acquainted with Gemma, a remarkable Bactrian camel standing nearly 8 feet tall, making her one of the largest of her species. Learn about Bactrian camels, native to the steppes of Central Asia, known for their distinctive two humps...

How did one of the oldest and most basic instruments evolve into the complicated and popular drum sets of today? This video describes the history of the instrument and introduces the components of a typical, modern drum set, including...

Kraków, Poland's cultural capital, has a rich history with medieval fortifications and stunning religious architecture, such as the 14th-century basilica and early baroque Saints Peter and Paul Church. Wawel Hill symbolizes the nation's...

Hair sticks are an easy way to add a touch of elegance to an updo.

Make life easier by printing to your nearest PC printer the first time, every time.

A frozen pipe doesn't have to mean major trouble. You can keep your water flowing all winter long.

Watch this lesson today to discover how Shakespeare explores the complexity of justice in King Lear. Decide for yourself: is the world of King Lear is just or not? Does everyone get what they deserve? Along the way, learn how to analyse...

Take the guesswork out of purchasing these percussion instruments by knowing exactly what's in a drum kit and what to keep in mind when buying one.

Howcast - Learn how to play the swiss army triplet from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn about toms from drum teacher Jason Gianni in this Howcast drum video.

Howcast - Learn how to play a full stroke from drum teacher Jason Gianni in this Howcast drum video.

Cold sores are highly contagious. Follow these simple steps to prevent them.