Question Details

Detailed explanation and options for the selected question.

Which Greek scientist first calculated Earth’s circumference fairly accurately in the 3rd century BC?

A. Archimedes

B. Aristotle

C. Eratosthenes

D. Pythagoras

Explanation:

Eratosthenes measured Earth’s circumference using shadows in Syene and Alexandria. Archimedes, Aristotle, Pythagoras had other contributions.

Related Topics

In the Mahabharata, who was Ghatotkacha, and how did he impact the war?

Revision Notes

When Is Magh Bihu 2025?

Revision Notes

Salem

Revision Notes

Clockmaking Traditions in Switzerland

Revision Notes

Shapiro Delay (GR Effect)

Revision Notes

Maxwell’s Equations

Revision Notes

Kirchhoff’s Law of Thermal Radiation

Revision Notes

Seasonal Affective Disorder and the Importance of Morning Light

Revision Notes

In the Ramayana, who was Tataka, and why did Rama have to slay her?

Revision Notes

Atmanirbhar Bharat: Self-Reliance Schemes and Financial Benefits

Revision Notes