0 Members and 1 Guest are viewing this topic.
If you were moving at the speed of light
If you were moving at almost the speed of light and you shined a flashlight in the direction you're moving the light would just barely come out of the flashlight and then stop?
Quote from: trevorjohnson32If you were moving at the speed of light I am afraid that objects with mass (like "you" and "flashlight") cannot be accelerated up to exactly the speed of light, as shown by Einstein's Special Relativity.So let's say almost the speed of light.QuoteIf you were moving at almost the speed of light and you shined a flashlight in the direction you're moving the light would just barely come out of the flashlight and then stop?No. A hypothetical "stationary" observer would see the light come out of the torch, and continue moving away from the torch at the speed of light. But the torch is moving at almost the speed of light, so the separation would increase slowly (as seen by the hypothetical "stationary" observer).The person holding the flashlight would have time slowed significantly and their units of length significantly compressed along the direction of movement (as seen by the hypothetical "stationary" observer).Put these together, and the person holding the flashlight would see the light beam progressing away from her at the speed of light (c).
Put these together, and the person holding the flashlight would see the light beam progressing away from her at the speed of light (c).
No. A hypothetical "stationary" observer would see the light come out of the torch, and continue moving away from the torch at the speed of light. But the torch is moving at almost the speed of light, so the separation would increase slowly (as seen by the hypothetical "stationary" observer).
Quote from: evan_au on 13/08/2017 07:05:04No. A hypothetical "stationary" observer would see the light come out of the torch, and continue moving away from the torch at the speed of light. But the torch is moving at almost the speed of light, so the separation would increase slowly (as seen by the hypothetical "stationary" observer). Ithink we mean the same thing. The light coming from the flashlight would appear to slowly come out of it because It's almost moving at light speed.
No, it would appear as nothing because visible light only exists of a body/matter , you would not see any light being emitted from the flashlight , no more than you can see visible light permeating through space.
If you were moving at the speed of light and you shined a flashlight in the direction you're moving the light would just barely come out of the flashlight and then stop? understand? But according to Lorentz invariation light travels at light speed regardless of the speed of the source of the light. Moving through the conductive grid or ether of space doesn't change the speed of light. but light doesn't travel at different speeds in relation to the movement of the observer through space time.
The way in which distant clocks are synchronized can have an effect on all time-related measurements over distance, such as speed or acceleration measurements. In isotropy experiments, simultaneity conventions are often not explicitly stated but are implicitly present in the way coordinates are defined or in the laws of physics employed.[2]Although the average speed over a two-way path can be measured, the one-way speed in one direction or the other is undefined (and not simply unknown), unless one can define what is "the same time" in two different locations. To measure the time that the light has taken to travel from one place to another it is necessary to know the start and finish times as measured on the same time scale. This requires either two synchronized clocks, one at the start and one at the finish, or some means of sending a signal instantaneously from the start to the finish. No instantaneous means of transmitting information is known. Thus the measured value of the average one-way speed is dependent on the method used to synchronize the start and finish clocks. This is a matter of convention. The Lorentz transformation is defined such that the one-way speed of light will be measured to be independent of the inertial frame chosen.[8]
Quote from: Thebox on 13/08/2017 18:48:40No, it would appear as nothing because visible light only exists of a body/matter , you would not see any light being emitted from the flashlight , no more than you can see visible light permeating through space.I understand that you can't see light itself. I'm talking about the area it illuminates.
look back in time,