All Videos

Does adding fibers to concrete make it stronger or what?

Ray tracing animations show how sound in an enclosed room reflects off of hard surfaces, creating reverberations and echoes that can make spoken language unintelligible.

Step up your joinery skills with a new woodworking technique

Some original bones and mashed up meat make a door whose secret is safe

Contact between dissimilar metals – like copper fittings threaded into steel pipe or copper flashing fastened with steel nails – sets up an electro-chemical reaction that causes corrosion and leads to failure of the “less noble” metal

Silicosis is a Lung Disease You Get from Masonry Dust—It Can Kill You if you breathe the dust from cutting concrete and masonry

Ridgid Cordless Wet/Dry Vacuum Offers a No-Compromise Battery-Powered Solution

Like billiards, with acoustics it's all about the angles

This sand-and-water model confirms mathematical predictions about how groundwater moves through soil

For historical work, joist hangers won't cut it, so turn to traditional woodworking joinery

Two words: lag bolts?

Materials absorb or reflect sound, but not all frequencies are the same

Closed-cell spray foam in a two-part froth pack is a fast and effective way to eliminate thermal bridges and air leaks in building assemblies

Replacing a toilet is a task most remodelers will have to do much more than they want to, so get it right the first time

How steel reinforcement makes concrete stringer: by giving it tensile strength. And how to boost tensile strength with prestressing or post-tensioning

Mesh sheeting creates a drainage space between the siding and weather-resistive barrier (WRB) allowing walls to dry much faster which makes them last much longer.

Everything there is to know (well, almost) about blower door testing with a few engineer-y jokes along the way.