Millions of people throughout the world are fascinated by puzzles, conundrums, and brain teasers. These amusing twisters from Barry Clarke are based on his extensive experience writing for the Daily Telegraph, Sunday Times and New Scientist. The author has gathered together a variety of posers including several examples of a brand new type of puzzle, The Word Bandit. Hints and full solutions are included for all puzzles. Wittily written and illustrated with delightful cartoons by the author, there is something for everyone here: puzzles for children, for the family, for members of Mensa, but...

In 1861, James Clerk-Maxwell published Part II of his four-part series 'On physical lines of force'. In it, he attempted to construct a vortex model of the magnetic field but after much effort neither he, nor other late nineteenth century physicists who followed him, managed to produce a workable theory. What survived from these attempts were Maxwell's four equations of electrodynamics together with the Lorentz force law, formulae that made no attempt to describe an underlying reality but stood only as a mathematical description of the observed phenomena. When the quantum of action was...

Daily Telegraph enigmatologist, Barry R. Clarke, presents over 120 fiendish problems that will test both your ingenuity and persistence. Between these covers are puzzles in geometry, arithmetic, and algebra (there is even a section for computer programmers).

Daily Telegraph enigmatologist, Barry R. Clarke, presents over 120 fiendish problems that will test both your ingenuity and persistence. Between these covers are puzzles in geometry, arithmetic, and algebra (there is even a section for computer programmers).