A demonstration of using a slingshot to humanely kill invasive cane toads, a common pest control method in some regions.

The U-44 was a German U-boat that served in World War I, part of the U-43 class of submarines.

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

了解中国唐代伟大诗人杜甫的故事，他如何从贫穷学士成为官员和诗歌奇迹的创造者，及其对生命和人民的热爱和关怀。

Explore strategies and techniques to boost imagination and inspire innovative thinking.

Learn about the life and career of Elon Musk, CEO of SpaceX and Tesla, and his innovative ventures in technology and space exploration.

Take a tour of a state-of-the-art hospital, featuring advanced medical facilities and equipment, and learn about the latest healthcare technologies and innovations.