First there a UK cubits, long cubits, greek cubits, etc. Now, 1 Greek cubit computes to about 462.788 mm.
Size of the bullet
Solomon's Temple, as described in the Bible, was 60 cubits long, 20 cubits wide, and 30 cubits high.
The second as a unit of time measurement was first defined by the ancient Greek astronomer Hipparchus in the 2nd century BC.
The basis for a calendar.
I Kings Chapter 61 And it came to pass in the four hundred and eightieth year after the children of Israel were come out of the land of Egypt, in the fourth year of Solomon's reign over Israel, in the month Zif, which is the second month, that he began to build the house of the LORD.2 And the house which king Solomon built for the LORD, the length thereof was threescore cubits, (90 Feet) and the breadth thereof twenty cubits, (30 Feet) and the height thereof thirty cubits (45 Feet).3 And the porch before the temple of the house, twenty cubits (30 Feet) was the length thereof, according to the breadth of the house; and ten cubits (15 Feet) was the breadth thereof before the house.4 And for the house he made windows of narrow lights.5 And against the wall of the house he built chambers round about, against the walls of the house round about, both of the temple and of the oracle: and he made chambers round about:6 The nethermost chamber was five cubits (7.5 Feet) broad, and the middle was six (9 feet) cubits broad, and the third was seven cubits (10.5 Feet) broad: for without in the wall of the house he made narrowed rests round about, that the beams should not be fastened in the walls of the house.
It was measured in cubits (about 18 inches).
144 cubits is a measure of length equal to 216 feet.
The modernday approximation of the cubit is 1.5 feet. Based upon this measurement, 3000 cubits is equal to 3000 x 1.5 = 4500 feet.
The old unit of measurement refers to various systems of measurement that were used in the past, before the standardized system of measurement was introduced. Examples of old units of measurement include the cubit, the fathom, the league, and the stone.
mm
The precise measurement is 5.7 mm for the first value and 3.6 m for the second value.
Cubits were used historically as a standard measurement in many ancient civilizations. However, nowadays they are not widely recognized or used as a standard unit of measurement in modern systems.
6 mm is a measurement standing for six millimeters.
A cubit is an ancient unit of measurement, typically equivalent to the length of a forearm. The exact measurement of a cubit can vary depending on the historical context, but it is generally estimated to be around 18-22 inches. Therefore, 20 cubits would be approximately 360-440 inches, or 30-37 feet.
mm
10
Threescore cubits is 60 cubits. One cubit is 1.5 feet. So:60 cubits x 1.5 feet = 90 feet