3 ms·
it isn't precisely a light nanosecond either, it's about 5mm off. today the standard foot as used in the USA is ironically just defined as 0.3048 meters
by nikcub 4y ago
it isn't precisely a light nanosecond either, it's about 5mm off. today the standard foot as used in the USA is ironically just defined as 0.3048 meters
- hanche 4y agoAnd the surveyors’ foot is 500000/499999 times that. Not sure how that came to be.