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

Biography of Narendra Modi, Indian politician serving as the 14th Prime Minister of India since 2014, and his rise to power.

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

A detailed look at the NASA space shuttle, its design, capabilities, and historic missions.

Explore the incredible defense system of the human body, from the different jobs and components of the immune system to its response to infections and how it keeps you safe.

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