Recent content by del2

'Pitch' refers to the perception of whether a sound is high (e.g. a soprano) or low (e.g. a bass); it is related to the frequency of the sound wave. A high pitch sound has a high frequency, and a low pitch sound has a low frequency. 'Volume' refers to the perceived loudness of a sound, and this...

Greetings all, I'm a recently retired Physics teacher and now I have time to join this forum. I hope to be able to contribute fairly regularly. Peter

There is a difference in construction. To wind a resistor with very low inductance, take your (insulated) resistance wire and double it back on itself, then wind the coil with the doubled wire. The current will flow around the coil in one direction and then back in the opposite direction, and...

The high frequencies from a distant explosion are attenuated by the air more than the low frequencies are.