Hello ,
In Washington D.C. there is a building called the "National Institute of Standards & Technology." This facility is responsible for storing perfect samples of weights and measurements.
They have what are called "prototypes" of pound weights and kilograms. Measuring rods for feet, yards & metric measurements like meters. For example, they have a "Meter Standard" a reinforced bar of platinum alloyed with exactly 10% iridium. When they want to know the exact measurement of a "meter" they cool this bar down to 0 degrees Celsius at a sea level of 45 degrees latitude then they know they will have the exact tip to tip
measurement of a meter. That bar is known as "prototype #27, because the original is kept in a suburb of Paris at the International Bureau of Weights & Measures.
We Christians also have a measuring rod that never changes. It's found in 2 Timothy 3:16-17. Go have a look. It never changes.
Have a great day and God bless
