How fast does light travel in water?
811 million km/hAbout 504 million mph · Cosmic
About 225,000 km a second.
That's about 14,000,000 times a red kangaroo's top speed (56 km/h).
🌊811 million km/h
💥a supernova
By speed: light in water is about 23× faster than a supernova.
Things about as fast
- How fast is the solar wind?1.44 million km/h
- How fast is the Milky Way moving?2 million km/h
- What is the Sun's escape velocity?2.22372 million km/h
- How fast is supernova debris?36 million km/h
- How fast is a lightning strike?360 million km/h
- How fast does light travel in a diamond?446.5 million km/h
- How fast does internet data travel in fibre?720 million km/h
- How fast is the speed of light?1,079.25 million km/h
Many real things vary, so we use a typical or official figure. Spotted a mistake? Email [email protected].