Happy 100th Anniversary to Einstein’s General Theory of Relativity!

relativity jacketToday is the final day of our popular #ThanksEinstein series, in which an array of prominent scholars and scientists have shared their insights and reflections on relativity, Einstein, and how his work inspired their own careers. Scroll through this week’s blog posts to read pieces by Daniel Kennefick, Katherine Freese, Hanoch Gutfreund, Jürgen Renn, Alice Calaprice, Jimena Canales, J.P. Ostriker, and many more special features, including this piece on Einstein’s final days.

Einstein’s General Theory of Relativity celebrates its 100 year anniversary today. November 25, 1915, during a particularly strenuous time in his life, is when Einstein submitted his final version of the general theory of relativity to the Prussian Royal Academy, complete with the field equations that define how the force of gravity arises from the curvature of space and time by matter and energy. The theory, which is the current theory of gravitation in modern physics, has implications for everything from black holes to the idea of universe expansion. It gained rapid popularity after its conception in 1915, and in the early 1920s alone, it was translated into ten languages. Fifteen editions in the original German appeared over the course of Einstein’s lifetime.

Princeton University Press has released a special edition of Relativity: The Special and the General Theory to commemorate the anniversary, including commentary from Hanoch Gutfreund and Jürgen Renn, Einstein experts, as well as additional content such as title pages from several language translations. You can browse through them in the slideshow below. Happy 100th to the general theory of relativity! Science wouldn’t be the same without you.

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Relativity Title Page, English Edition

Relativity Title Page, Chinese Edition

Relativity Cover, Chinese 1921 Edition

Relativity Cover, Czech Republic 1923 Edition

Relativity Cover, German Edition

Relativity Title Page, Japanese Edition

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Feynman on the historic debate between Einstein & Bohr

The golden age of quantum theory put many of the greatest minds of the 20th century in contact with some of the most significant scientific and philosophical questions of their era. But it also put these minds in contact with one another in ways that have themselves been a source of curiosity and ongoing scientific debate.

Richard Feynman and Albert Einstein, two towering geniuses of their time, were both as revered for their scientific contributions as they were beloved for their bursts of wisdom on a wide range of subjects. It’s hard not to wonder just what these men thought of one another. Princeton University Press, which published The Ultimate Quotable Einstein in 2010 publishes The Quotable Feynman this fall. The book includes reflections by Feynman on Einstein, from his memorable mannerisms to his contributions to some of the most heated debates in 20th century science.Feynman quote

Perhaps because of the gap between their career high points, (Einstein died in 1955; Feynman didn’t receive his Nobel Prize until 1965), there are no verified quotes where Einstein alludes to Feynman or his expansive body of work. But Feynman had made observations on the older physicist, several of which revolve around Einstein’s famous 1927 public debate with Niels Bohr on the correctness of  quantum mechanics. Central to the debate was this question: Were electrons, light, and similar entities waves or particles? In some experiments they behaved like the former, and in others, the latter.

In an attempt to resolve the contradictory observations, Einstein proposed a series of “thought experiments”, which Bohr responded to. Bohr essentially took the stance that the very act of measuring alters reality, whereas Einstein insisted that reality exists, independent of the act of measurement. Key to the philosophy of science, the dispute between the two giants is detailed by Bohr in “Discussions with Einstein on Epistemological Problems in Atomic Physics”. Richard Feynman is quoted as commenting on the debate:Feynman quote 2

An Einstein Encyclopedia contains a section on the Einstein-Bohr debates, as well as a wealth of other information on Einstein’s career, family, friends. There is an entire section dedicated to righting the various misconceptions that swirl around the man, and another on his romantic interests (actual, probable, and possible).

In spite of their differences, Bohr and Einstein were friends and shared great respect for each others’ work. Until Einstein’s death 3 decades later, they continued their debates, which became, in essence, a debate about the nature of reality itself.  feynman quote 3

Check out other new Einstein publications this fall, including:

An Einstein Encyclopedia
The Road to Relativity

Beth Shapiro at Kepler’s

Shapiro at Kelper's

Beth Shapiro, author of How to Clone a Mammoth, has begun her book tour across the US and the UK. Last Thursday, April 16, Beth had a wonderful event at Kepler’s Books in Menlo Park, CA, where she gave an overview of her intriguing book and fielded questions from the audience. We are featuring content related to How to Clone a Mammoth every Monday on our blog as part of our #MammothMonday series. Be sure to read the first chapter and pick up a copy of the book.

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10 facts about penguins that will make you wish you were one of them

JacketIn case you haven’t noticed, penguins have become a cultural phenomenon in recent years. From “March of the Penguins” with Morgan Freeman’s narration, to Happy Feet, Surfs Up, and their respective sequels, penguins are as captivating as ever. (I myself adopted a penguin for a year from the Philadelphia Zoo) And let’s face it, being a human can be overrated and sometimes it’s fun to just imagine what life would be like as another specie. Here are 10 facts about penguins from Tui De Roy’s, Mark Jones’s, and Julie Cornthwaite’s new book Penguins: The Ultimate Guide that will make you wish you were one of them.

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Penguins: The Ultimate Guide, Pg. 173


1.    Penguins are exceptionally fast swimmers, clocking in at 22mph. Michael Phelps, in comparison, swims at just under 4.5 mph.

2.    Have you ever opened your eyes underwater and felt the sting of the salt or chlorine? Penguins haven’t! Clear nicitating membranes serve as see-through underwater goggles.

3.    Trust issues? Some species of penguins remain monogamous to their mates for more than one season. *Queue “aww”*

4.    Smaller penguin species like the Rockhoppers leave their half-grown chicks huddling together for safety while the grown-ups “grab some grub.” These are called “crèches” and the chicks are supervised by non-breeding penguin neighbors aka baby, or should we say “penguin,” sitters you can trust.

5.    Tired of hearing terrible pick-up lines or getting “poked” on Facebook? Penguins carry out exuberant courtship displays like sky-pointing and “ecstatic greetings.”

6.    They say if you’re ever stranded at sea, don’t drink the water, it’ll only dehydrate you faster, but penguins can process seawater by means of large salt-extracting glands in their foreheads.


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Pg. 28

7.    Never play hide and seek with penguins. Their binocular vision is as good as that of owls.

8.    Despite their awkward wobble, Penguins are impressively built. Dual purpose feet allow them to easily walk across wet and slippery surfaces while their surprisingly long (but mostly hidden) legs let them commute several kilometers to their nests.

9.    Wouldn’t you like to live in a world with gender-equality? Penguins do! Males and females rarely show gender differences. In fact, it is the male Emperor Penguin who incubates the egg while the female forages for food.

10.    When it comes to fashion, penguins never have to sacrifice form for function (or the other way around). Their sleek—and chic!—coats consists of around 15 feathers per square centimeter, the densest plumage of any bird.

Interested in Einstein?



On Wednesday 29th January, A.Douglas Stone will be giving a talk at Blackwell’s Bookshop, Oxford, one of Britain’s best loved and most famous bookshops.

Einstein’s development of Quantum theory has not really been appreciated before. Now A.Douglas Stone reveals how he was actually one of the most important pioneers in the field.  Einstein himself famously rejected Quantum mechanics with his “God does not play dice” theory, yet he actually thought more about atoms and molecules than he did about relativity. Stone’s book ‘Einstein and the Quantum‘, which was published in November by Princeton University Press, outlines Einstein’s personal struggle with his Quantum findings as it went against his belief in science as something eternal and objective. Professor Stone will be happy to take questions and sign copies at the end of his talk.

Wednesday, January 29th at 19:00

Tickets cost £3 and are available from Blackwell’s Customer Service desk in the shop; by telephoning 01865 333623; by emailing events.oxford@blackwell.co.uk


Two for Tuesday – Britain’s Freshwater Fishes & England’s Rare Mosses

From our WildGuides selection, we are introducing two new beautifully illustrated books for your personal library.

j9973Britain’s Freshwater Fishes
by Mark Everard

Britain hosts a diversity of freshwater environments, from torrential hill streams and lowland rivers to lakes, reservoirs, ponds, canals, ditches, and upper reaches of estuaries. Britain’s Freshwater Fishes covers the 53 species of freshwater and brackish water fishes that are native or have been introduced and become naturalized. This beautifully illustrated guide features high-quality in-the-water or on-the-bank photographs throughout. Detailed species accounts describe the key identification features and provide information on status, size and weight, habitat, ecology, and conservation. Written in an accessible style, the book also contains introductory sections on fish biology, fish habitats, how to identify fishes, and conservation and legislation.




j9975England’s Rare Mosses and Liverworts:
Their History, Ecology, and Conservation
by Ron D. Porley

This is the first book to cover England’s rare and threatened mosses and liverworts, collectively known as bryophytes. As a group, they are the most ancient land plants and occupy a unique position in the colonization of the Earth by plant life. However, many are at risk from habitat loss, pollution, climate change, and other factors. Britain is one of the world’s best bryologically recorded areas, yet its mosses and liverworts are not well known outside a small band of experts. This has meant that conservation action has tended to lag behind that of more charismatic groups such as birds and mammals. Of the 918 different types of bryophyte in England, 87 are on the British Red List and are regarded as threatened under the strict criteria of the International Union for the Conservation of Nature.

This book aims to raise awareness by providing stunning photographs–many never before published–of each threatened species, as well as up-to-date profiles of 84 of them, including status, distribution, history, and conservation measures. The book looks at what bryophytes are, why they are important and useful, and what makes them rare; it also examines threats, extinctions, ex situ conservation techniques, legislation, and the impact of the 1992 Convention on Biological Diversity.

For more selections from WildGuides, please visit: