How Mary Somerville contributed to 19th-century science
An overview of Mary Somerville and her various books.
Encyclopædia Britannica, Inc.
-
Encyclopædia Britannica, Inc.Two people making change for five dollars as a representation of how matter is conserved in a chemical reaction.
-
Encyclopædia Britannica, Inc.This fruit was a favorite of George Washington—but has been largely forgotten.
-
Created and produced by QA International. © QA International, 2010. All rights reserved. www.qa-international.comThe big-bang theory proposes that the universe expanded from a highly compressed state.
-
© Open University (A Britannica Publishing Partner)Jean Rhys's work is animated by a spirit of wanting to speak for those who are voiceless.
-
© Open University (A Britannica Publishing Partner)A discussion of the Nice model (named for Nice, France) of the formation of the orbital structure of the outer planets and the Kuiper belt. The Nice model also accounts for the age of some Moon rocks.
-
© MinutePhysics (A Britannica Publishing Partner)Astronomer Neil deGrasse Tyson exploring the question of whether the universe has a purpose.
-
Contunico © ZDF Studios GmbH, Mainz; Thumbnail © Joggie Botma/Dreamstime.comOverview of gravity, with a focus on zero gravity.
