ينتقل الضوء أسرع مايمكن في الفضاء. ناسا بالعربي

"The neutrino as a tachyon"	the most accurate standard for the metre is conveniently defined so that there are exactly 299,792,458 of them to the distance travelled by light in a standard second, giving a value for the metre that very accurately matches the now inadequately precise standard metre rule in Paris
Salter Horners Advanced Physics A2 Student Book	Wave Propagation and Group Velocity

"Astrophysics: Burst of support for relativity".

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ينتقل الضوء أسرع مايمكن في الفضاء: "Nuclear Null Tests for Spacelike Neutrinos"
ينتقل الضوء أسرع ما يمكن في الفضاء . صواب خطأ: Randall, Lisa; Warped Passages: Unraveling the Mysteries of the Universe's Hidden Dimensions, p
أسرع من الضوء: Proceedings of the Royal Society of London

— Nature 19 November 2009	"Nicole Oresme on the Nature, Reflection, and Speed of Light"
"Measurement of the Velocity of Light Between Mount Wilson and Mount San Antonio"	"Tunneling time, the Hartman effect, and superluminality: A proposed resolution of an old paradox"

"Origin of the Hartman effect".

16

ناسا بالعربي: "Chapter Five — The Scholar of Cairo"
ناسا بالعربي: "Probing the Speed of Light with Radio Waves at Extremely Low Frequencies"
كيف تعرف ان الضوء ينتقل في الفراغ: "Parity Violation and Neutrino Mass"