-
01-Electric current
-
02-Consumption and production of electric energie
-
03-Transformers and power transmission
-
04-Domestic electricity and its dangers
-
05-Sources and aspects of light
-
06-Electromagnetic waves
-
07-optical systems
-
08-Lasers
-
09-Vibratory nature of sound
-
10-The humain Ear as a Sound Decteton
-
11-Acoustic energy an physiological qualities
-
12-Musical instruments Laws of vibrating strings and and sound pipes
acoustic energy and phy siological qualities of sound.pdf
التقييم
0
0
لا توجد تعليقات حالياً.
المشاركة في الدورة
لتكون أول من يترك تعليقاً.