Public Standards of Length
19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

šŸ“œ Brass placard outside the Royal Observatory in Greenwich, installed in 1866. šŸ” Measures official lengths of yard, foot, and inch.

Why Go

šŸ”¬ Verify measuring sticks with historical precision
šŸ•°ļø See a monument to precision and industrial history
šŸ“ Located near the Shepherd 24-hour Slave Clock and Meridian Laser

Tips

šŸŒ”ļø Standards are accurate at 15.5Ā° Celsius.
šŸ‘€ Find measures outside the observatory complex, right of gates facing meridian line, under the clock.

Last updated 28 days ago

We strive for accuracy, but errors may occur. Please verify key info.