Don’t you love it when the title track is the first one on the album? I had to single out this adjustable keyboard called the Protractor, because look at it! The whole thing moves, you know.

A speed square is handy for marking cuts, finding angles, and more. Here are a few good reasons why no toolbox should be ...

In this required practical activity, it is important to: make, measure and record the angles of incidence accurately using a protractor. observe and use a protractor to measure angles of refraction.

make, measure and record the angles of incidence accurately using a protractor. observe and use a protractor to measure angles of refraction. Independent variable is the angle of incidence.

No woodworking toolkit should be without a combination square, which is as versatile as it is low-priced, and can be used for ...

Using only the outside surface, the protractor accurately measures the angle, ignoring the material’s thickness ... tall tools that are too heavy for manual changes. Standard tools measure 15-3/4 in.

Carrion crows did not learn geometry in classrooms. They did not measure angles or discuss theorems. Yet they saw order in shape. They recognized what fit and what did not. That’s the very heart of ...

Have you ever wondered what the hash marks, black diamonds, and red squares on a tape measure mean? We'll help crack the code ...

A long-time viewer emailed me earlier this week with a puzzle: he had two rain gauges side-by-side during our recent storm, ...