80s

How old were you when The metre is defined as the distance light travels in a vacuum in 1/299,792,458 of a second.?

The metre is defined as the distance light travels in a vacuum in 1/299,792,458 of a second.

The metre is defined as the distance light travels in a vacuum in 1/299,792,458 of a second. happened on 1983-10-21. If you were born in 1971, you were about 12 — set your birthday for your exact age.

If you were born in…

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