Feilden's blog

Ground-breaking new technique in stem cell science

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Poetry or science?

Is romantic love just a chemical cocktail?

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Body repair 'could be ramped up'

A combination of drugs could trick the body into sending its repair mechanisms into overdrive, say scientists.

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Our writers talk back

Some of the previous contributors to the Green Room respond to readers' questions and comments.

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A deep-sea fish caught in the Pacific has mirrors for eyes

A deep-sea fish caught in the Pacific has eyes which use mirrors as well as lenses, scientists discover.

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Mosquitoes make sweet love music

Sexy songs sung by mosquitoes in courtship could be key to curbing the spread of dengue fever, say scientists.

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Mummy of female pharaoh uncovered

Egyptologists find remains of a mummy thought to belong to a queen who ruled 4,300 years ago, Egypt's antiquities chief announced.

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Earth Watch

Why it is hard to predict sudden environmental crises

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Black holes 'preceded galaxies'

Astronomers believe they have solved a cosmic chicken-and-egg question: what came first - black holes or galaxies?

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'Wolfman' returns

Explorer Jim McNeill tracks down Arctic wolves

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Holes give edge to new armour

Scientists from the UK Ministry of Defence (MoD) have devised ultra-hard vehicle armour to protect military personnel.

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Venomous mammal caught on camera

Rare footage of one of the world's most strange and elusive mammals is captured by scientists.

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Baby Jupiter's huge weight gain

The planet Jupiter must have gained mass fast during its infancy, according to astronomers.

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Tech fair offers greener vision

Analysts at the Consumer Electronics Show say green credentials of tech products will become critical to success.

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Beagle hunter

On a mission to find the most famous ship of science

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Heat may spark world food crisis

Half the world's population could face food crisis by 2100 as soaring temperatures cripple staple crops, scientists warn.

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Canadians claim South Pole record

A trio of Canadians claim a new record for the fastest trek across Antarctica to the South Pole.

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First flight of algae-fuelled jet

Continental Airlines is the latest to test fly a jet biofuel, this time with a product derived partially from algae.

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China alert over bird flu death

Chinese authorities shut down and clean poultry markets in Hebei province, after the first human death in nearly a year.

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Eat it or lose it - why centuries of crop diversity are at risk

Centuries of crop diversity are at risk of being lost forever as farmers turn to just a few modern, high yielding varieties.

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Panda bites his third tourist in two years at Beijing zoo

A panda at Beijing zoo bites a man for the third time in two years.

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US vows 'huge' marine protection

The US is to establish "the largest area of protected sea in the world", banning fishing and mining, around its Pacific islands.

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Zimbabwe troops 'eat elephants'

A Zimbabwean wildlife campaigner tells the BBC that soldiers are being given elephant meat to eat, as the economic crisis deepens.

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Animal matters

Scotland's debate over tests on primates

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Everest trip helps critically ill

Blood oxygen levels recorded on a trip by medics to Everest could help the treatment of critically ill patients.

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 Science > Relativity

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Science > Relativity

Relativity:

Are There Any Good Books on Relativity Theory?

The Physics FAQ's guide to relativity books; by Chris Hillman (with contributions by Nathan Urban). An extensive annotated list of semi-popular books, textbooks and background reading.

http://math.ucr.edu/home/baez/physics/Administrivia/rel_booklist.html

Beyond Einstein

Description of NASA's Beyond Einstein missions set to explore various consequences of general relativity - and possibly, as the name indicate, go beyond what Einstein's theory predicts. Includes educational resources.

http://universe.nasa.gov/

Cambridge Relativity Public Home Page

Various pages with non-technical texts about cosmology, black holes, cosmic strings, inflation, quantum cosmology, and string theory, written by members of the Relativity Group at Cambridge University.

http://www.damtp.cam.ac.uk/user/gr/public/

Graand

Free Classified Ads Portal

www.graand.com

Einstein Online

Information about Einstein's theories of special and general relativity and their applications; site is hosted by the Max Planck Institute for Gravitational Physics. Includes a simple introduction, a collection of articles ("Spotlights on relativity"), and a relativistic dictionary.

http://www.einstein-online.info/en

An Essay on General Relativity

Overview of the basic ideas and principal applications of general relativity. Written by John L. Safko for students in the self-paced astronomy courses at the University of South Carolina in 1997.

http://astro.physics.sc.edu/selfpacedunits/Unit57.html

Interactive Experiments in Gravity

Try an experiment that illustrates the gravitational attraction between two objects or use a Java applet to understand how orbits work in strongly curved space-time.

http://www.fourmilab.ch/gravitation/

Interactive Geometric Database

Interactive database developed by Mustapha Ishak and Kayll Lake and hosted by Queen's University; allows the user to search for specific solutions of Einstein's field equations (that is, for specific model universes of general relativity).

http://130.15.26.66/servlet/GRDB2.GRDBServlet

Introduction to General Relativity

By Gerard 't Hooft (Utrecht University); based on lectures held in 2002; a thorough introduction starting with accelerated frames and including topics such as black holes, the basics of cosmology, and gravitational radiation.

http://www.phys.uu.nl/~thooft/lectures/gr.html

The Light Cone: An Illuminating Introduction to Relativity

Introduces the basic principles of relativity, the physics of special relativity, and some basic principles of general relativity. Contains a great number of helpful images and animations; site created by Rob Salgado (Syracuse University).

http://www.phy.syr.edu/courses/modules/LIGHTCONE/

NOVA Online/Einstein Revealed

Profile of Albert Einstein, with additional teaching resources, Shockwave demonstrations, and animations of relativity concepts.

http://www.pbs.org/wgbh/nova/einstein/

Physics Bookshelf - Relativity

A collection of articles about relativity

http://www.upscale.utoronto.ca/GeneralInterest/Relativity.html

QMW Hyperspace

A set of hypertext based services for general relativity research provided by the QMW Relativity group.

http://www.maths.qmw.ac.uk/hyperspace/

Relativity

Provides information on the history, experiments and paradoxes of relativity.

http://nobelprize.org/physics/educational/relativity/

Relativity

Large collection of relativity-related links by Rob Salgado (Syracuse University). Warning: page hasn't been updated since 2000, and quite a number of links are now broken.

http://physics.syr.edu/research/relativity/RELATIVITY.html

Relativity: List of Important Equations

Page scans from the Handbook of Space Astronomy and Astrophysics giving equations and formulas for special relativity and relativistic cosmology. Includes bibliography.

http://ads.harvard.edu/books/hsaa/chap10.html

Relativity, Space and Time

Science popularization article on the Theory of Relativity.

http://pgostrov.googlepages.com/e2.html

Relativity: Special, General, and Cosmological

Sample chapters from the classical textbook by Wolfgang Rindler, as part of a "limited preview" on Google Books.

http://books.google.com/books?id=fUj_LW51GfQC

Selected References in Relativistic Cosmology and General Relativity

Extensive list of classic and modern research papers in cosmology and general relativity. Although the author warns that his selection is subjective, the result is a highly useful list of references; for many papers, there are links to online versions on the arXiv.org e-print server. By Henk van Elst (Queen Mary, University of London).

http://www.mth.uct.ac.za/~webpages/henk/paplist.html

Spacetime - General Relativity, Quantum Gravity, and the Existence of Time

A brief summary of Spacetime Theories at the beginning of the Third Millennium, and of the possibility that we live in an essentially atemporal universe.

http://www.ws5.com/spacetime/

Wikipedia: General Relativity Resources

Annotated list of reading material about general relativity: popular books, textbooks, books on specific topics, web courses, and websites.

http://en.wikipedia.org/wiki/General_relativity_resources

Wikipedia: Introduction to General Relativity

Encyclopedia article explaining the basic concepts, observational tests and (astrophysical) applications of general relativity.

http://en.wikipedia.org/wiki/Introduction_to_general_relativity

General Relativity Simulation Contest

Attempt at a content aimed at the Internet community to write a simulation program, based on a simple algorithm incorporating the laws of general relativity, that can realistically simulate the behavior of black holes, binary stars, and the twin paradox. (December 28, 2005)

http://users.telenet.be/nicvroom/contest.htm

Numerical Relativity: Status and Prospects

Review article by Luis Lehner about the foundations of numerical relativity and recent progress in the field; particular attention is paid to simulations of black hole spacetimes. (February 19, 2002)

http://arxiv.org/abs/gr-qc/0202055

Subtle is the Gravity

Review of the motivations for and basic principles of general relativity, aimed at a general audience. Written by Naresh Dadhich (IUCAA Pune), based on a lecture delivered in 2001. (February 3, 2001)

http://arxiv.org/abs/gr-qc/0102009

Gravitational Waves and Black Holes: An Introduction to General Relativity

An introduction by Jan-Willem van Holten (NIKHEF, Amsterdam), based on lectures given at the University of Heidelberg in 1997. (April 15, 1997)

http://arxiv.org/abs/gr-qc/9704043