Gresham College: "The Shape of Gravity: Why On Earth Are Planets Spherical?"

This in-person theatre and livestream talk is available online from Gresham College to Basingstoke Science subscribers.

ADVANCE BOOKING AND PAYMENT IS REQUIRED FOR THIS TALK.
More details and booking instructions on the Gresham web site:
https://www.gresham.ac.uk/whats-on/shape-gravity

SUMMARY

#### Part of: The Geometry of Nature and the Shape of Things

We often take for granted that planets, shaped by the force of gravity, are spherical. However, a closer look reveals that the Earth is not a perfect sphere—it is slightly squashed. But is it squashed like a pumpkin or more like a peanut? And is the sphere truly the only possible shape for a planet? As planets grow larger and must sustain increasingly extreme forces, can we still assume they maintain a spherical shape? These seemingly simple questions have fascinated scientists and mathematicians since the time of Newton, giving rise to profound mathematical theories that deepen our understanding of the universe.

LIVESTREAM TIMING
The livestream will go live at 5.55pm, and the introduction will begin at 6.00pm. If you register but miss the livestream, the video will be available to you via the same link for two weeks after the event date.

For more information on livestreams, see the information below, or visit our FAQs page. Please use the event link you have been provided with.

Gresham College has offered an outstanding education to the public free of charge for over 400 years. Today, Gresham College plays an important role in fostering a love of learning and a greater understanding of ourselves and the world around us. Please consider making a donation on their web site to support the work of Gresham College.