Occasionally, it even reaches speeds of up to 1000 km/s. ... Recent data from the Voyager 1 and 2 space probes have shed new light on the subject. ... An explanation of the radio signals emitted can be found through the example of an aircraft flying at the speed of sound. ...
One of the first physical processes Newton would revisit at Cambridge was that concerning light. He theorized that even white light was composed of a variety of constituents, each of a different color . ... Hodges notes that this analysis allowed Newton to envision: "light and visibility of objects as a result of the rather mechanical movement of a host of miniscule particles or "corpuscles" of light through air, from object to observer, at the speed of about 168,000 miles per second". In more than one way Newton's theories of light interrelate with his theories of gravity. ... ...
