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Full Idea
A light ray always moves at one unit of space per unit of time - a constant diagonal on the graph. ...But the direction that light rays travel in is neither space nor time, and is called 'null'. It is on the edge between space and time.
Gist of Idea
Light moves at a constant space-time speed, but its direction is in neither space nor time
Source
New Scientist writers (New Scientist articles [2013], 2013.06.15)
Book Ref
-: 'New Scientist magazine' [ 2013], p.37
A Reaction
Don't understand this, but it sounds fun.
20627 | Electric fields have four basic laws (two by Gauss, one by Ampère, one by Faraday) [Close] |
20630 | Light isn't just emitted in quanta called photons - light is photons [Close] |
20629 | Electro-magnetic waves travel at light speed - so light is electromagnetism! [Close] |
20632 | In QED, electro-magnetism exists in quantum states, emitting and absorbing electrons [Close] |
20637 | In general relativity the energy and momentum of photons subjects them to gravity [Close] |
20642 | Photon exchange drives the electro-magnetic force [Close] |
20649 | The interference of light through two slits confirmed that it is waves [Watson] |
21209 | Electron emit and reabsorb photons, which create and reabsorb virtual electrons and positrons [Martin,BR] |
19478 | Light moves at a constant space-time speed, but its direction is in neither space nor time [New Sci.] |
21155 | Photons have zero rest mass, so virtual photons have infinite range [New Sci.] |
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