Mystery: Why doesn’t colored bubblebath make colored soap bubbles in water?
Promising her seven-year-old daughter she would solve this puzzling mystery, astronaut Yamazaki mixed red tropical fruit juice with soap and blew shiny red bubbles in space to the delight of her daughter Yuki, who watched with the astronaut’s husband Taichi on a video phone, Jiji Press said.
The experiment worked because space’s zero-gravity environment allowed color pigments to spread evenly around a bubble, said Yamazaki’s husband.
The latest experiment follows a tradition of Japanese astronauts testing left-field ideas in space, ranging from trying out a flying carpet to applications of eye drops.
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