China's second female astronaut, Wang Yaping, has delivered the country's first-ever video lecture from space.
Speaking to students via live video, Ms Wang used spinning tops, a ball, water and a fellow astronaut to explain physics in zero-gravity.
Uncover the stories others won’t tell. Subscribe now for exclusive access
- Unlimited access to all premium content
- Uninterrupted ad-free browsing experience
- Mobile-optimized reading experience
- Weekly Newsletters
- MPesa, Airtel Money and Cards accepted