Basic Units: Standard of Length
Photo shows the demonstration used at the University of Texas at Austin.
Concepts Conveyed:
- The one meter bar has been compared with the National Bureau of Standards of the United States.
- The length of the bar from zero to the one meter line at 20 deg C is 1000.068 millimeters.
- The value for the length of the bar at 20 deg C is not in error by more than 0.002 mm.
- Maker of bar: Societe Genevoise.
- Date bar was tested and calibrated: November 9, 1938.
Instructions / Notes:
- One meter stick is provided.
Last updated on November 1, 2024