Judgment Day

In "Judgment Day" by Terry Prachett, Ian Stewart and Jack Cohen science is the only answer.

The wizards Ridcully, Rincewind and Ponder Stibbons are the proud - but accidental - creators of Roundworld, but when science and politics clash, the three wizards from the Unseen University are dragged into court over its very existence.

The High Priests of Omnia are quite certain that Discworld is round rather than flat, and view the small spherical planet of Roundworld to be evidence to this effect. Because of this the church is determined to snatch it out of the hands of Ridcully, Ricewind and Ponder Stibbons.

With the aid of a librarian from Roundworld called Marjorie Daw, the academic wizards prepare to present their case in court. They are Roundworld's only hope!

"Judgment Day" by Terry Prachett, Ian Stewart and Jack Cohen is the fourth book on the science behind Prachetts incredible Discworld universe. By joining forces with mathematician Ian Stewart and biologist Jack Cohen, who both are well-known writers of popular-science books, Prachett presents quite many scientific aspects from the real world such as Earth's creation, subatomic particles, and dark matter.