A ball valve is a form of quarter-turn valve which uses a hollow, pivoting ball to control flow through it.

From end to end, this clip from The Science Channel's, "How It's Made," shows us how combination wrenches are manufactured.

Sit back and enjoy the factory fun with this How It's Made: Perogies video.

In this minisode of How It's Made, find out how hot dogs make their way from raw meat at a factory to your local street vendor.

Follow the path of deli sausages from ground meats at the factory to the grocery store on this clip from The Science Channel's, "How It's Made."

Sit back and enjoy the factory fun with this How It's Made: Handcrafted Moulds video.

Find out how recycled plastic bottles are transformed into polyester yarn on this clip from The Science Channnel's, "How It's Made."

This warm and fuzzy clip from The Science Channel's, "How It's Made," is all about fleece.

Grass or string trimmers are compact and allow you to cut around and between objects. A rotating nylon line cuts down vegetation in its path. It was invented in the late 1960s.

From the special spices to the drying and smoking of the links, see how tasty little pepperonis are made.

Find out how eco friendly hand dryers are heating public washrooms up on this clip from The Science Channel's, "How It's Made."

This version features a chocolate truffle base under a layer of marble cheesecake. The decoration on the top is known as a napoleon design.

This clip from The Science Channel's, "How It's Made," doesn't crack under pressure gauges.

Sit back and enjoy the factory fun with this How It's Made: Powder Horns video.

How can fire extinguishers contain such powerful chemicals and propellants without being dangerous? Find out how they are made and what makes them work.

These massive, rolling irrigation systems are custom made to the field they’ll service. The factory makes the pipes and the team assembles them in the field.