http://www.fourmilab.ch/etexts/einstein/specrel/www/ ON THE ELECTRODYNAMICS OF MOVING BODIES, by A. Einstein, June 30, 1905: "From this there ensues the...

According to Einstein's relativity, if a single moving clock successively passes multiple synchronized clocks which are stationary, observers in both frames...

http://www.perimeterinstitute.ca/pdf/files/975547d7-2d00-433a-b7e3-4a09145525ca.pdf Albert Einstein (1954): "I consider it entirely possible that physics...

A light source emits a series of pulses the distance between which is d (e.g. d=300000km). A stationary receiver/observer measures the frequency of the pulses...

http://cfile205.uf.daum.net/attach/141EBD484EE5A30219CDD4 The Elegant Universe, Brian Greene, p. 19: "If she fires the laser toward you - and if you had the...

Einstein's 1918 paper: http://en.wikisource.org/wiki/Dialog_about_objections_against_the_theory_of_relativity Dialog about Objections against the Theory of...

http://www.pitt.edu/~jdnorton/papers/companion.pdf John Norton: "Einstein could not see how to formulate a fully relativistic electrodynamics merely using...

http://www.amazon.com/Brief-History-Time-Stephen-Hawking/dp/0553380168 Stephen Hawking, "A Brief History of Time", Chapter 3: "...we must first understand...

Are there lone stars out there not belonging to any galaxy? Is there any matter outside of galaxies?

tidal forces make all forces not conservative stars a lot like a black hole are the most cold parts of the universe - tidal forces make particles have a big...

http://www.einstein-online.info/spotlights/doppler Albert Einstein Institute: "The frequency of a wave-like signal - such as sound or light - depends on the...

The top of a tower of height h emits light with frequency f, speed c and wavelength L (as measured by the emitter): f = c/L An observer on the ground...

http://fr.scribd.com/doc/232184286/neil-degrasse-tyson-death-by-black-hole-and-other-ies-v5-0-pdf Neil deGrasse Tyson: "BEGINNING IN 1905, investigations...

Mass is a substance that all subatomic particles are built of, hence, mass bits are building blocks for all matter in the universe. To support this...

The top of a tower of height h emits light with frequency f, speed c and wavelength L (as measured by the emitter): f = c/L An observer on the ground...

http://www.einstein-online.info/spotlights/doppler Albert Einstein Institute: "The frequency of a wave-like signal - such as sound or light - depends on the...

"If you know any pedantic science nerds, you’ve probably been corrected at some point about c, the speed of light, the velocity Einstein famously said could...

In article , Yousuf Khan writes: This was an article from last year, it's surprising nobody...

Was recently reading a sci-fi/alternate history tale and stumbled onto something that caught my attention, as it's always been an "I wonder..." concept in...

I have noticed some things on portions of the NASA web site for astronomy education that raise a concern. In educational materials, occasionally one will...