An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil . The first successful oil tanker was Zoroaster, which carried its long tons of kerosene cargo in two iron tanks joined by pipes. One tank was .

Gravity plays a huge part in roller coaster physics. As a coaster gets higher, gravity can pull the cars down faster and faster to push them along the tracks.

Ammonia -- This alkaline allows for lightening by acting as a catalyst when the permanent hair color comes together with the peroxide. Like all alkalines.

You bought a fancy digital camera and now you want to print top quality photos. The pixels on your digital camera or computer screen get converted into dots.

Electromagnetic clutches operate electrically but transmit torque mechanically. This is why they . How it works – Electromagnetic tooth clutches operate via an electric actuation but transmit torque mechanically. When current flows through the clutch coil, the coil becomes an electromagnet and produces magnetic lines of.

It's under the hood of every car, truck and SUV, but how many people really know how an engine works? Do you know a spark plug from a fuel injector? Time to.

Deep inside the Earth lies hot water and steam that can be used to heat our homes and businesses and generate electricity cleanly and efficiently. It's called geothermal energy -- from the Greek words geo, or "earth," and therme, meaning "heat." Sometimes magma escapes through.

The U.S. gun control debate is controversial and multifaceted. Learn about 10 of the big questions in the U.S. gun control debate at HowStuffWorks.

Current nuclear reactors use nuclear fission to generate power. In nuclear fission, you get energy from splitting one atom into two atoms. In a conventional.

A particle accelerator works the same way, except that they are much bigger, In fact, the first cyclotron (shown below) was only 4 inches (10 cm) in diameter.