Ariana Grande makes a stylish appearance on the blue carpet, waving to fans and posing for photos.

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

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。

German Chancellor Angela Merkel is seen eating spaghetti in a rare casual moment, showcasing her down-to-earth personality.

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

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？

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