To see accurate pricing, please choose your delivery country.
United States
All Shops
We're still open for business - read our EU and Covid-19 statements

British Wildlife

8 issues per year 84 pages per issue Subscription only

British Wildlife is the leading natural history magazine in the UK, providing essential reading for both enthusiast and professional naturalists and wildlife conservationists. Published eight times a year, British Wildlife bridges the gap between popular writing and scientific literature through a combination of long-form articles, regular columns and reports, book reviews and letters.

Subscriptions from £40 per year

Conservation Land Management

4 issues per year 44 pages per issue Subscription only

Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.

Subscriptions from £18 per year
Academic & Professional Books  Reference  Physical Sciences  Physics

Six Not-So-Easy Pieces Einstein's Relativity, Symmetry and Space-Time

Out of Print
By: Richard P Feynman
150 pages, B/w photos, line illus
Publisher: Penguin Books
Six Not-So-Easy Pieces
Click to have a closer look
Select version
  • Six Not-So-Easy Pieces ISBN: 9780140276671 Paperback Jul 2012 Out of Print #95484
  • Six Not-So-Easy Pieces ISBN: 9780713992632 Hardback Apr 1999 Out of Print #88815
About this book Contents Biography Related titles

About this book

Drawn from Feynman's celebrated introductory course of lectures on physics. Though slightly more challenging than the first Six Easy Pieces, these rewarding lectures delve into the most revolutionary discovery of twentieth century physics: Einstein's theory of relativity.


Part 1 Vectors: symmetry in physics; translations; rotations; vectors; vector algebra; Newton's laws in vector notation; scalar product of vectors. Part 2 Symmetry in physical laws: symmetry operations; symmetry in space and time; symmetry and conservation laws; mirror reflections; polar and axial vectors; which hand is right?; parity is not conserved!; antimatter; broken symmetries. Part 3 The special theory of relativity: the principle of relativity; the Lorentz transformation; the Michelson-Morley experiment; transformation of time; the Lorentz contraction; simultaneity; four-vectors; relativistic dynamics; equivalence of mass and energy. Part 4 Relativistic energy and momentum: relativity and the philosophers; the twin paradox; transformation of velocities; relativistic mass; relativistic energy. Part 5 Space-time: the geometry of space-time; space-time intervals; past, present and future; more about four-vectors; four-vector algebra. Part 6 Curved space: curved spaces with two dimensions; curvature in three-dimensional space; our space is curved; geometry in space-time; gravity and the principle of equivalence; the speed of clocks in a gravitational field; the curvature of space-time; motion in curved space-time; Einstein's theory of gravitation.

Customer Reviews


Richard P. Feynman (1918-88) was one of this century's most brilliant and original thinkers. He taught at Cornell and the California Institute of Technology and received the Nobel Prize in Physics for his work in quantum electrodynamics. Books by Feynman in Penguin include THE CHARACTER OF PHYSICAL LAW (1965), QED (1985), the bestselling THE MEANING OF IT ALL(1998) and SIX EASY PIECES (1998).
Out of Print
By: Richard P Feynman
150 pages, B/w photos, line illus
Publisher: Penguin Books
Current promotions
British WildlifePrincetonCollins Birds of the World - 30% off pre-orderOrder your free copy of our 2021 equipment catalogues