The coordinate grid, also known as the Cartesian plane, is a two-dimensional space formed by two perpendicular lines: the ...

Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International stock ...

Description: This is the first stage of my new project - the construction of a house on the mountainside in the forest. Today ...

Certain materials feel a magnetic force. A magnetic force can be either attraction or repulsion. How to make a magnetic compass Learn how to make a magnetic compass.