As noted in the Introduction, the earliest use of protractors was probably in navigation. Protractors assisted with laying out angles to indicate the actual or desired direction of a ship. Makers ...

Mechanics or machinists also used protractors to draw designs for new types of machinery. For instance, there were several forms of limb protractors for draftsmen that both functioned as T-squares and ...

A wide variety of protractors and angle gages are available that vary in construction and application. Angle squares consist of a square with angular graduations along the longest face or hypotenuse.

Learn more› By Kaitlyn Wells and Zoe Vanderweide If you believe the hype, blue-light blocking glasses will prevent headaches, decrease eyestrain, and help you sleep like a baby. But do they work?

Chicago-based microbrand Haim Watch Company has launched a world timer called the Viajero that's powered by a Seiko NH34 GMT ...

Back to school already? This time of year always sneaks up. Check out these school supply sales and keep this list handy as ...

When is the Blue Protocol release date? The free-to-play game comes hot on the heels of the successes of Genshin Impact and Honkai Star Rail, introduces an MMO angle, and is being developed by ...

Scientists in Western Australia have found a tree frog which is bright blue, rather than the usual green, due to a rare genetic mutation. The blue magnificent tree frog was spotted in the Charnley ...

A blue chip is a nationally or internationally recognized, well-established, and financially sound company that's publicly traded. Blue chips generally sell high-quality, widely accepted products ...

Commissions do not affect our editors' opinions or evaluations. Blue chip stocks are the Old Faithfuls of the investing world. They don’t offer the meteoric growth of a hot startup or today’s ...

What you need: ruler, protractor, pencil and paper. Use these to construct a triangle when you know the length of 1 side and the 2 angles at each end of it. In this case use the length 8 cm ...

The Journal Sentinel looked at estimated school supply costs at three schools in the Milwaukee area for second-, fourth- and ...