Units used to measure loudness are Sone (loudness N) and Phon (loudness level L). Scroll down to related links and look at "Loudness - Wikipedia" and "Sound level change and the change of the respective factor of volume and loudness"
radiation
495 n
two inclined planes,double wedge and single wedge
distance between charged particles
Something that transfers thermal energy efficiently is called a conductor.
It can easily be transformed up to a high voltage for power transmission, and back down for home supplies at 120/240 volts.
Refraction is caused by light crossing from one medium to another.
When two or more waves occupy the same space at the same time, an interference pattern is created.
Standing waves are the result of an interference of two waves that are traveling along the same medium in opposite directions.