Watch as a Moai statue is carefully rotated to its original position, showcasing the intricate details of this ancient Easter Island monument.

Footage of a bearded astronaut walking on the Moon's dark side, holding a shiny sample container during a lunar mission.

A simulated spacecraft navigates the intense gravitational forces surrounding a black hole, showcasing the warping of space-time.

Watch Kermit the Frog bust a move with his signature default dance from the Muppets franchise.

Allan Kardec discusses his seminal work, The Spirits' Book, a foundational text of Spiritism that explores communication with the spirit world.

一组描述夕阳下的美景和诗情画意的文字，描绘了夕阳下的自然美景和人文情怀。

Learn about the fundamental principles of electric circuits, including voltage, current, resistance, and common components like wires, batteries, and switches.