Discover the basics of hydroponics in this 1-day training course, covering soilless growing methods, system design, and plant care.

Russian President Vladimir Putin is seen eating spaghetti in a rare casual moment, showcasing a lighter side of the leader.

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？

Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

Debunking the myth: Space Shuttles were designed for low-Earth orbit, not lunar missions. Explore the facts behind the Space Shuttle program.

Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

A scene from the 1990 comedy film 'Kindergarten Cop' where Arnold Schwarzenegger's character punches a pig.