3 ms·
At the same time, the meter should be redefined so the speed of light is 300000 km/s. This would have the side effect of making the inch exactly 2.5 cm.
by madcaptenor 1y ago
At the same time, the meter should be redefined so the speed of light is 300000 km/s. This would have the side effect of making the inch exactly 2.5 cm.