1.0 milliseconds -- cycle time for frequency 1 kHz
1 ms -- duration of light for typical photo flash strobe
2.27 ms -- cycle time for the A above middle C in music (440 Hz). If an electric tuning device for musical instruments generates just one tone, this is probably that tone.
... The population density of the community is 18 inhabitants per km².
External links
Ludvika (http://www.ludvika.se) - Official site
Municipalities of ...