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

Learn about the jackfruit tree's scientific classification and its origins in southern India and Malaysian rainforests.

警方调查年轻CEO李宇峰的死亡案件，发现尸体上的小刺痕和毒草残留物，揭开了一场复杂的谋杀案的序幕。

A heartwarming moment of a young boy bursting into laughter, showcasing the joy and innocence of childhood.

Watch as Neil Armstrong moves around on the lunar surface during the historic Apollo 11 mission in 1969.

German Chancellor Angela Merkel savors a plate of spaghetti in a lighthearted moment.

Learn about the origins and growth of Baidu, China's largest search engine and AI leader.