Televisions

[Batavia]

18 hours ago, WotEver said:

Yep. If you draw a sine wave then add the second harmonic over the top, then the third, and keep going... you get a square wave

To be pedantic (before anyone else is), you only need the fundamental and the odd harmonics!

 

Chris G (who still occasionally uses Fourier Transforms)

[WotEver]

1 minute ago, Batavia said:

To be pedantic (before anyone else is), you only need the fundamental and the odd harmonics!

 

Chris G (who still occasionally uses Fourier Transforms)

I originally wrote “... third harmonic, fifth harmonic...” but then changed it ‘cos I couldn’t remember if that was right (it was a long time ago). 

[Batavia]

Just now, WotEver said:

I originally wrote “... third harmonic, fifth harmonic...” but then changed it ‘cos I couldn’t remember if that was right (it was a long time ago). 

Trust your memory!

[Chewbacka]

55 minutes ago, Batavia said:

Trust your memory!

 As I got older my long term memory is ok, but short term, not so, hence remembering where I put my keys.........

 

[WotEver]

29 minutes ago, Chewbacka said:

 As I got older my long term memory is ok, but short term, not so, hence remembering where I put my keys.........

There are three things I can never remember...

 

... er...

[Chewbacka]

3 hours ago, WotEver said:

There are three things I can never remember...

 

... er...

Did I mention my short term memory wasn’t as good as it used to be?

[WotEver]

1 hour ago, Chewbacka said:

Did I mention my short term memory wasn’t as good as it used to be?

I’m not sure. Do I know you, young man?