In addition, it becomes necessary to take into account the spherical Earth.

His primary aim was to reach children before they were convinced about a spherical Earth.

The following are some effects which make real orbits differ from the simple models based on a spherical earth.

On our spherical Earth, gravity pulls "down" us toward the planet's center of mass.

These are necessary for geophysical fluid flows on a spherical Earth.

String is wrapped around the equator of a perfectly spherical Earth.

Note that the equations are exact both for spherical and ellipsoidal Earth model.

This means the display of information, intended for a spherical earth, becomes distorted when the image is viewed on a flat surface.

The famous pictures of a spherical Earth taken from space are claimed by members to be either hoaxes or illusions.

Islamic astronomy inherited the idea of a spherical earth from the Greek astronomical tradition.