They used special globes and instruments to make measurements and teach. The Smithsonian collections are particularly rich in models for spherical trigonometry by Worcester, Massachusetts, high school ...

A map of the night sky created by the ancient Greek astronomer Hipparchus was recently discovered at St. Catherine Monastery in Egypt.

FOUR of the most important formulæ in spherical trigonometry were given by Gauss, without proof, in his “Theoria Motus Corporum Cœlestium” (1809), and were therefore called Gauss's theorems ...

Why do people believe this, and is it even worth getting into a debate over? Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of Ask a Spaceman and Space ...

Steps from the Las Vegas Strip, the Las Vegas Sphere is a multi-billion-dollar entertainment venue that's redefining residencies.

Throughout the centuries, the mythical Stone Tower has been a fascinating enigma for geographers, historians, and ...

label the sides on the triangle decide which ratio to use (SOH CAH TOA) substitute the correct information into the ratio rearrange to find '\(x\)' solve using your calculator making sure your ...

Read More View Book Add to Cart The Mathematics of the Heavens and the Earth: The Early History of Trigonometry Glen Van Brummelen The Mathematics of the Heavens and the Earth is the first major ...

Instead, he shows us how he put together an interactive spherical display that won ... to keep things upright while he dusted off his trigonometry skills in order to figure out how to get ...

Spherical roller bearings utilize two rows of friction-reducing, barrel-shaped rollers located between an outer ring with a spherical raceway and an inner ring composed of two inclined raceways. These ...

An animated guide to using trigonometry. Trigonometric terms are explained and examples are used to show how to find unknown angles and sides for right-angled triangles. Use as an introduction or ...

They used special globes and instruments to make measurements and teach. The Smithsonian collections are particularly rich in models for spherical trigonometry by Worcester, Massachusetts, high school ...