We’re all familiar with the sun’s daily motion in the sky. It rises in the east, gets higher in the sky until circa noon, then begins its hours-long descent to set on the western horizon. You may also ...

The iPad is an excellent tablet for students, professionals, and everyone else. Thanks to the beautiful displays, and the Apple Pencil (and Apple Pencil Pro), the iPad also doubles up nicely as a note ...

Deep inside caves, water dripping from the ceiling creates one of nature's most iconic formations: stalagmites. These pillars ...

Scientists discover all stalagmites growing from cave floors follow a mathematical rule that explains how these mineral ...

Perform calculations on lines, polygons, planes and circles, including normals, intersections of objects, distance between objects, and tangent lines. Throughout this library, lines can be treated as ...