This conversation is closed.

## How is analog time different than digital time? I would liket more concrete statements and points of view here.

how are physical actions connected to the respective digital ones? How have they changed? e.g. the traditional way of mailing with the e-mailing. How does time exist in all that?

Related Talks:
• #### Pierre Ferkous

• 0
Dec 8 2013: I think Robert meant that Time is a dimension but it is neither digital nor analog because Time is the variable which defines if a signal is digital or analogue. Time looks simple but it's a abstract physical quantity.Indeed, Time exist because Humanity needs a point of reference.

However, according me Time is analog and digital.
The sundial is the first device that tells the time of day by the position of the Sun. As Earth turns with continuous movement, I think we can named this Time, an analog time. But this device it was not very precise for human especially during the night.
So we invented an another type of Time which are easier to handle and more precise by dividing a day in 24 hours, an hours in 60 minutes, a minutes in 60 seconds, ... Currently it is used every day, in fact a minute or a second is a interval of time. This scale of Time is precise as much as possible but it's not really continuous according me because between 2 picoseconds (one millionth of one millionth of a second) there are an infinite number of interval smaller.

So, i think that Time which is used commonly is digital but in the absolute it's depend.
• #### George Azok

• 0
Nov 17 2013: Thanks for your interest. So the meaning that you post here implies to the fact that there is no time in the digital world? What is your opinion on the difference between the time flow in the two worlds?
• #### Robert Galway

• 0
Nov 17 2013: An analog or analogue signal is any continuous signal for which the time varying feature (variable) of the signal is a representation of some other time varying quantity, i.e., analogous to another time varying signal. For example, in an analog audio signal, the instantaneous voltage of the signal varies continuously with the pressure of the sound waves. It differs from a digital signal, in which a continuous quantity is represented by a discrete function which can only take on one of a finite number of values. The term analog signal usually refers to electrical signals; however, mechanical, pneumatic, hydraulic, and other systems may also convey analog signals. (http://en.wikipedia.org/wiki/Analog_signal)