Steel and plastic are essential to much of our infrastructure and technology. Steel is strong and hard, but difficult to shape intricately. Plastic can take on just about any form, but it's weak and soft. Wouldn't it be nice if there...

Today Shini explains the law of conservation, beginning with simple, steady-state systems. We’ll discuss conversion and yield, accumulation, and how generation and consumption can affect how much accumulation there is in a system.

Paved roads are nice to look at, but they're easily damaged and costly to repair. Erik Schlangen demos a new type of porous asphalt made of simple materials with an astonishing feature: When cracked, it can be "healed" by induction heating.

Today we’ll explore more about two of the three main types of materials that we use as engineers: metals and ceramics. We’ll discuss properties of metals, alloys, ceramics, clay, cement, and glass-ceramic materials. We’ll also look at...

Today we’re going to start thinking about materials that are used in engineering. We’ll look at mechanical properties of materials, stress-strain diagrams, elasticity and toughness, and describe other material properties like hardness,...

You might not believe it, but the same chemistry that brought us bulletproof vests and modern sailing sails also gave us the technology to build your smart phone. But that doesn’t mean these chemists were thinking about these...

In this video Paul Andersen explains how metallic solids form when delocalized electrons hold the positive nuclei in an electron sea. This model helps to explain the properties of metals like conductivity, shiny appearance,...

This video discusses the impact of tariffs on the economy, using the example of washing machines and steel imports. It highlights how tariffs can lead to higher prices for consumers, job losses in certain industries, and retaliatory...

There are a lot of misconceptions about tariffs, and some really good reasons why we don't use them like a hammer anymore.

Howcast - Learn what welding is from sculptor DeWitt Godfrey in this Howcast video.

Howcast - Learn eight tips about bike frames from Silk Road Cycles' Brendon Nicholas in this Howcast bicycle repair and maintenance video.

Howcast - Learn how to make a Minecraft nether portal with this gameplay tutorial. Learn the portal recipe, and how a obsidian portal works in Minecraft.

Howcast - Learn how to buy a straight razor in this Howcast video.

Howcast - Learn what kind of steel you should look for in a pedal steel guitar in this Howcast video.

Howcast - Learn what a pedal steel guitar is in this Howcast video.

Howcast - Messy cabinets, rolling jars, tipping bottles, and spilled spices can now be a thing of the past with a magnetic rack for all your yummy seasonings.

Howcast -Turn your plants on their heads to thwart pests and eliminate the need for stakes, cages -- even a garden.

Howcast - Americans comprise 5 percent of the Earth's population and produce 40 percent of its waste. That may seem irresponsible, but it can change.

Howcast -Learn how to shape glass from glassblowing expert Ed Donovan in this Howcast video.

Howcast -Learn six cool glassblowing tips, tricks, and techniques from expert Ed Donovan in this Howcast video.

Howcast - Honing a knife doesn't sharpen a blade, it straightens it — realigning the edge and maintaining it in between longer and more involved sharpening sessions.

Learn how to use a sharpening steel in this Howcast video with expert Dan Delavan.

DIY SCI host Steve Spangler demonstrates the extreme crushing power of air pressure by crushing a steel drum!

It Might Seem Harmless, But This Little Scrubber Can Cause a Lot of Trouble