TiMELiNES
Everything has a timeline
TiMELiNES
1025
Al-Biruni measures Earth with new precision
Using trigonometry and horizon observations, al-Biruni refined methods for estimating Earth's radius.
Context
Appears In
Authority
Sources
Taxonomy
Everything has a timeline
1025
Using trigonometry and horizon observations, al-Biruni refined methods for estimating Earth's radius.
Context
Authority
Taxonomy