THE appearance of a school edition of “Euclid's Elements,” published under the auspices of the Cambridge University Press, provokes reflections upon the strange position so long maintained in ...

THE preface to the first edition of Sir Thomas Heath's translation of Euclid's “Elements” begins with the following quotation from De Morgan: “There never has been, and until we see it we ...

But details about these “dark” elements of the universe remain a mystery. To shed light on these concepts, Euclid will image a wide range of galaxies. Dark matter will have bent the light from ...