1 Massage the twitch muscle with your finger for 15 seconds. 2  Usually there are other muscles that twitch like leg cramps, so take 500mg of magnesium citrate capsule daily. 3  If you have headaches, massage the knot at the back of your neck for release.
Â­So to measure really long distances, people use a unit called a light year. Light travels at 186,000 miles per second (300,000 kilometers per second). Therefore, a light second is 186,000 miles (300,000 kilometers).
Now to convert those to light years. One light year is equal to 10^13 km. Therefore, the maximum is 4.649 x 10^9 / 10^13 = 4.64 x 10^-4 lightyears (ly) . The minimum is 4.351 x 10^9 / 10^13 = 4.35 x 10^-4 light years = 0.15888375 light days = 3.81321 light hours = 3 light hours and 49 minutes.