I just like to put forward a simple question which has been buggin me for a long time. What is frequency? rajesh.
frequency
Started by ●April 10, 2009
Reply by ●April 10, 20092009-04-10
On Apr 10, 3:13�pm, rajesh <getrajes...@gmail.com> wrote:> �I just like to put forward a simple question which has been buggin me > for a long time. > > What is frequency? > > rajesh.Number of repititions of a waveform per second..
Reply by ●April 10, 20092009-04-10
> > I just like to put forward a simple question which has been buggin me >for a long time. > >What is frequency? > > >rajesh. >The correlation between a signal and sinus waves with different frequencys. Moctar
Reply by ●April 10, 20092009-04-10
> > I just like to put forward a simple question which has been buggin me >for a long time. > >What is frequency? > > >rajesh. >Imagine, you are standing at a bus station. And now, you are counting number of buses departing. So if 30 buses depart in one min, then what is the freq? Chintan.
Reply by ●April 10, 20092009-04-10
On 10 Apr, 05:13, rajesh <getrajes...@gmail.com> wrote:> �I just like to put forward a simple question which has been buggin me > for a long time. > > What is frequency?Easter time - time to get metaphysical? OK, I'll play along. I suppose the answer is trivial if one first answers the question 'what is time?' And no, I don't have the answer to that one. Time (and thus frequency) is a measurable quantity that has the dual properties that it both allows humans to make sense of the world as we observe it, and also serves as a basis for mathemathical physics. Rune
Reply by ●April 10, 20092009-04-10
Rune Allnor wrote:> > On 10 Apr, 05:13, rajesh <getrajes...@gmail.com> wrote: > > I just like to put forward a simple question which has been buggin me > > for a long time. > > > > What is frequency? > > Easter time - time to get metaphysical? > OK, I'll play along. > > I suppose the answer is trivial if one first > answers the question 'what is time?'What has time got to do with it? For instance, if someone were to inquire about the frequency of the use of the letter "E" as compared to the letter "F" in Shakespeare's works, how would time be involved? Even if the definition is in the context of data that represents a digital signal time really doesn't need to be involved. If you were intent on analyzing the frequency of something in that data set, time is still not going to be part of the definition unless you happen to know something about how the data was acquired. The task of analyzing frequency is not hopeless if you happen to not have any knowledge of how the data is related to real world time. -Jim> And no, I don't have the answer to that one. > Time (and thus frequency) is a measurable > quantity that has the dual properties that > it both allows humans to make sense of > the world as we observe it, and also serves > as a basis for mathemathical physics. > > Rune
Reply by ●April 10, 20092009-04-10
On 10 Apr, 18:41, jim <"sjedgingN0Sp"@m@mwt,net> wrote:> Rune Allnor wrote: > > > On 10 Apr, 05:13, rajesh <getrajes...@gmail.com> wrote: > > > �I just like to put forward a simple question which has been buggin me > > > for a long time. > > > > What is frequency? > > > Easter time - time to get metaphysical? > > OK, I'll play along. > > > I suppose the answer is trivial if one first > > answers the question 'what is time?' > > What has time got to do with it?Are you able to explain the concept of 'frequency' without using the concept of 'time' as part of the explanation? Rune
Reply by ●April 10, 20092009-04-10
Rune Allnor wrote:> On 10 Apr, 18:41, jim <"sjedgingN0Sp"@m@mwt,net> wrote: >> Rune Allnor wrote: >> >>> On 10 Apr, 05:13, rajesh <getrajes...@gmail.com> wrote: >>>> I just like to put forward a simple question which has been buggin me >>>> for a long time. >>>> What is frequency? >>> Easter time - time to get metaphysical? >>> OK, I'll play along. >>> I suppose the answer is trivial if one first >>> answers the question 'what is time?' >> What has time got to do with it? > > Are you able to explain the concept of 'frequency' > without using the concept of 'time' as part of the > explanation?What is the frequency of twins in the population? But of course, that is not the use of 'frequency' that the OP had in mind. Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●April 10, 20092009-04-10
On Apr 10, 1:01�pm, Rune Allnor <all...@tele.ntnu.no> wrote:> On 10 Apr, 18:41, jim <"sjedgingN0Sp"@m@mwt,net> wrote: > > > Rune Allnor wrote: > > > > On 10 Apr, 05:13, rajesh <getrajes...@gmail.com> wrote: > > > > �I just like to put forward a simple question which has been buggin me > > > > for a long time. > > > > > What is frequency? > > > > Easter time - time to get metaphysical? > > > OK, I'll play along. > > > > I suppose the answer is trivial if one first > > > answers the question 'what is time?' > > > What has time got to do with it? > > Are you able to explain the concept of 'frequency' > without using the concept of 'time' as part of the > explanation? > > RuneThere is of course spatial frequency ;-) And time is simply nature's way of keeping everything from happening at once! Clay
Reply by ●April 10, 20092009-04-10
Rune Allnor <allnor@tele.ntnu.no> wrote: (snip, someone wrote)>> What has time got to do with it?> Are you able to explain the concept of 'frequency' > without using the concept of 'time' as part of the > explanation?Well, spatial frequency should be explainable without a reference to time. The question needs more context to know what the OP really wanted. In the sense of the Fourier transform, frequency is the reciprocal unit of the unit of the transform input, but that doesn't have to be time. -- glen
