An olive green tool vest is a staple in the wardrobe of Wu Yuren, a retired professor of physics from Shanghai’s Tongji University. Its many patch pockets are like magic boxes from which Wu pulls gadgets when conducting lab experiments. At times, she almost resembles a magician pulling a rabbit out of a hat.
A slim figure with silver locks and a lively temperament, Wu likes to move around and use her hands when explaining the experiments she conducts in her videos. With over 4 million followers on major short video platform Douyin, China’s TikTok, the 74-year-old has shared more than 400 such videos, earning her the nickname “science grandma.”
Most of these videos are under
