Ian Stewart

"An esteemed mathematician shows how math powers the world, from technology to health care and beyond"-- Almost all of us have sat in a math class, wondering if we would ever use it in the real world. Stewart argues that math isn't just about boring computations: it's a means to achieve great things, such as space exploration and organ donation. He shows that trigonometry is essential to keeping a satellite in orbit, and how the prime numbers power...

Eight physicists and one mathematician give their candid views on how physics and mathematics teaching might be improved.

Roundworld, aka Earth, is under siege. Are three wizards and an orangutan Librarian enough to thwart the Elvish threat?
 
When the wizards of Unseen University first created Roundworld, they were so concerned with discovering the rules of this new universe that they overlooked its inhabitants entirely. Now, they have noticed humanity. And humanity has company. Arriving in Roundworld, the wizards find the situation is even worse than...

The fourth book in the Science of Discworld series, and this time around dealing with THE REALLY BIG QUESTIONS, Terry Pratchett's brilliant new Discworld story Judgement Day is annotated with very big footnotes (the interleaving chapters) by mathematician Ian Stewart and biologist Jack Cohen, to bring you a mind-mangling combination of fiction, cutting-edge science and philosophy.
Marjorie Dawe is a librarian, and takes her job...

The wizards discover to their cost that it’s no easy task to change history.
Roundworld is in trouble again, and this time it looks fatal. Having created it in the first place, the wizards of Unseen University feel vaguely responsible for its safety. They know the creatures that lived there escaped the impending Big Freeze by inventing the space elevator — they even intervened to rid the planet of a plague of elves, who attempted to...