Reply to post: Re: Creates more problems than it solves?

Three certainties in life: Death, taxes and the speed of light – wait no, maybe not that last one

John Brown (no body) Silver badge

Re: Creates more problems than it solves?

"The meter would need to be defined as a constant. The second is defined separately, the speed of light is defined as a fixed number of meters per secon, and the length of the meter is derived from that."

Except that defining the meter using the speed of light is a later modification to the definition. When the meter was invented and defined, the speed of light was not known.

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