existence

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Discover the difference between the observable universe and the whole universe

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Plato (left) and Aristotle, detail from School of Athens, fresco by Raphael, 1508-11; in the Stanza della Segnatura, the Vatican. Plato points to the heavens and the realm of Forms, Aristotle to the earth and the realm of things.

Plato and Aristotle: How Do They Differ?

A human Inuit skull in a stone chambered cairn in Ilulissat in Greenland. These ancient graves are pre christian and are at least 2000

14 Tough Questions Answered

Aristotle (384-322 BC), Ancient Greek philosopher and scientist. One of the most influential philosophers in the history of Western thought, Aristotle established the foundations for the modern scientific method of enquiry. Statue

Philosophers to Know, Part I

Philosophers to Know, Part II

Casino. Gambling. Slots. Slot machine. Luck. Rich. Neon. Hit the Jackpot neon sign lights up casino window.

Brain Games: 8 Philosophical Puzzles and Paradoxes

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American soldiers in the Ardennes during the Battle of the Bulge.

9 Questions About World War II Answered

winter ice melting salt on the ground, pattern as background

Why Does Salt Melt Ice?

Groups of depositors in front of the closed American Union Bank, New York City. April 26, 1932. Great Depression run on bank crowd

Causes of the Great Depression

Leonardo DiCaprio (L) and Kate Winslet in a scene from the motion picture Titanic (1997) directed by James Cameron. Academy Awards, Oscars, cinema, film, movie

9 Love Stories with Tragic Endings

Shadow of a man holding large knife in his hand inside of some dark, spooky buiding

7 of History's Most Notorious Serial Killers

Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.

12 Greek Gods and Goddesses

Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)

All 119 References in “We Didn’t Start the Fire,” Explained

existence: Media

philosophy

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Discover the difference between the observable universe and the whole universe

Discover the difference between the observable universe and the whole universe

Learn about the distinction between the observable universe and the whole universe.

Video: © MinutePhysics (A Britannica Publishing Partner)

Images

Gottlob Frege

Gottlob Frege

Gottlob Frege.

Courtesy of the Universitatsbibliothek, Jena, Ger.

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