Einstein's special relativity, established in 1905, unified space and time into a four-dimensional continuum. It relies on two core principles: Galileo's relativity and the constancy of light's speed.

Galileo Galilei originally presented this postulate ... In 1908, before Einstein published his work on general relativity, ...

Dexter defines The Galilean Suite as tone poems, but while Holst’s inspiration for The Planets was astrological, this work is influenced by what we know about the moons’ geology.

Could Galileo have worked out the principles of the modern theory of relativity? Could he, even in the mid-seventeenth century, have derived the Lorentz transformations, the existence of a ...

Einstein’s central coup with general relativity was to combine that with a principle noted over three centuries earlier by Galileo: that falling objects accelerated at the same rate regardless ...