It was further redefined as equal to 1,650,763 | When one draws a line perpendicular to E1E2, going through S, it will also pass through the intersection of E1A2 and E2A1, point I |
---|---|
An astronomical unit AU, au, a | It can be calculated using frequency, or the radius of the wheel |
Parsec explanation A parsec pc is about 30,856,775,814,671,900 meters, or approximately 3.
Sailing under the Golden Gate Bridge | Half a year later, when the Sun is on the opposite side of the Earth, they draw another imaginary line from the current position of the Earth point E2 to the new apparent position of the distant star point A1 , line E2A1 |
---|---|
In some countries like Canada, it is only used when measuring fabric, as well as sports grounds, such as swimming pools and cricket pitches | It can be measured by an odometer |