"Spring has sprung"... all year round, for many centuries! Here's how important that one simple device has become for ...

With more than 500 bridges crisscrossing the city of Philadelphia, they are an integral part of daily life. In a city defined by its rivers, bridges make possible the connections between people.

Designed by Sir Christopher Wren and Robert Hooke, this stone column reaches a height of 202 feet, exactly 202 feet from the ...

The turn of March marked the beginning of Ramadan, the holy month of fasting celebrated by Muslims around the world.

This idea isn’t new—it goes back thousands of years. The Romans and Mesopotamians built arches that used compression to ...

In the 17th century, Robert Hooke first described how elastic materials work. He discovered that the force needed to stretch an elastic material is proportional to the distance it is stretched ...