光速
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Meanings
1
speed of light
Scientific and everyday term for the constant speed of light in a vacuum, approximately 300,000 km/s.
The speed of light is about 300,000 kilometers per second.
You cannot exceed the speed of light.
Usage patterns
- 光速で〈動詞〉to do something at the speed of light
In theory, no object can move at the speed of light.
- 光速を超えるto exceed the speed of light
According to current physics, it is impossible to exceed the speed of light.
- 光速に近い〈物〉something close to the speed of light
The particle was traveling at a speed close to the speed of light.