Darwin meets Einstein : on the meaning of science by Frans W. Saris

By Frans W. Saris

Why do people have interaction in medical examine? For a few, it’s easily a profession. Others are interested in technology for its power monetary rewards. And nonetheless others do it out of competitiveness—to be the 1st of their box. yet in Darwin Meets Einstein Frans W. Saris argues that during our postmodern occasions we now have misplaced the which means of science—that technological know-how isn't really approximately festival, nor approximately being profitable, nor concerning the pleasure of discovery. technological know-how is for survival—the survival of people, the survival of life.

In this available choice of essays and columns, Saris brings jointly in dialog a few nice minds—Charles Darwin, Baruch Spinoza, Niko Tinbergen, Francis Bacon, Heike Kamerlingh Onnes, Franz Kafka, and Albert Einstein—to solution the query: why technological know-how? With choices like “Diary of a Physicist,” “The medical Life,” “The mom of All Knowledge,” and “Science during the having a look Glass of Literature,” Darwin Meets Einstein will entertain its readers and finally motivate them to re-evaluate the meaning—and the purpose—of science.

Show description

Continue reading "Darwin meets Einstein : on the meaning of science by Frans W. Saris"

Exact Solutions and Scalar Fields in Gravity: Recent by Alfredo Macías, Jorge L. Cervantes-Cota, Claus Lämmerzahl

By Alfredo Macías, Jorge L. Cervantes-Cota, Claus Lämmerzahl

Divided into 4 elements, this e-book covers fresh advancements in themes referring to gravity theories, together with discussions at the presence of scalar fields.
half One is dedicated to detailed recommendations ordinarily relativity, and is commonly occupied with the result of rotating null airborne dirt and dust beams and fluids. additionally incorporated is a breathtaking imaginative and prescient of latest learn instructions during this sector, which might require revising convinced theorems and their attainable extensions inside of gravity theories, new features bearing on the Ernst potentials, double Kerr spacetimes, and rotating configurations. particularly, there's a exact dialogue of completely symmetric and absolutely geodesic areas, during which a mode for producing (2+1)-dimensional recommendations from (3+1)-dimensional ideas is given.
half bargains with replacement theories of gravity, all of which comprise scalar fields and gauge fields. the following, quantum and cosmological results, which come up from either gravity theories in 4 and better dimensions and from metric-affine theories, are investigated.
half 3 is dedicated to cosmological and inflationary situations. neighborhood results, reminiscent of the effect of scalar fields in protogalactic interactions, numerical experiences of the cave in of molecular cores, as good because the inverse inflationary challenge and the blue eigenvalue spectrum of it, are thought of. in addition, the position of scalar fields as darkish subject and quantum cosmology within the Bergman-Wagoner and Gowdy theories, including the relation of the conformal symmetry and deflationary gasoline universe, are likewise provided.
The final a part of the ebook comprises a few combined themes that are nonetheless within the experimental degree. between them are the basis of the Maxwell concept, a dialogue on electromagnetic Thirring difficulties, a word at the staticity of black holes with non-minimally coupled scalar fields, and a examine of the Lorentz strength unfastened charged fluids in basic relativity.
hence, this booklet is the main up to date, finished number of papers as regards to certain strategies and scalar fields in gravity and is a helpful software for researchers within the quarter.

Show description

Continue reading "Exact Solutions and Scalar Fields in Gravity: Recent by Alfredo Macías, Jorge L. Cervantes-Cota, Claus Lämmerzahl"

Physics of Planetary Rings: Celestial Mechanics of by Professor Alexei M. Fridman, Dr. Nikolai N. Gorkavyi (auth.)

By Professor Alexei M. Fridman, Dr. Nikolai N. Gorkavyi (auth.)

Physics of PlanetaryRings describes awesome buildings within the planetary jewelry of Saturn, Uranus, Jupiter and Neptune. In Saturn, the jewelry are stratified into millions of ringlets united in a posh hierarchical constitution with spiral waves and gaps; in Uranus, they're compressed into slim streams; and in Neptune, one observes a series of clumps. This abundance of dynamical constructions is the results of exact instabilities and the resonance motion of satellites. The authors have made decisive contributions to analyze into collisional, collective and resonance phenomena in planetary earrings. They accurately anticipated the lifestyles of unknown Uranian satellites ahead of the Voyager 2 fly-by. the mix of a top quality description, attention-grabbing illustrations and a desirable and typical presentation will make this booklet of significant curiosity to a vast readership, together with astronomers, physicists, mathematicians, scholars and beginner astronomers.

Show description

Continue reading "Physics of Planetary Rings: Celestial Mechanics of by Professor Alexei M. Fridman, Dr. Nikolai N. Gorkavyi (auth.)"