习惯可以改变一个人，好的习惯让我们变得更好，坏的习惯让我们不由自主。如何养成好的习惯，改变自己？

A demonstration of a USB pen drive being physically broken in half by hand, highlighting its fragility.

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

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

Footage of people walking in and out of a grocery store, showcasing daily shopping activity.

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

A close-up view of a glass flask containing a herbal extract, showcasing its color and texture.