Does anybody care that Brooke Shields is frustrated with aging? see story inside?
Generally, /question/index?qid20100206091500AA7eXFv ) HTH, Diane B.
There are distinctive variety of waves however the main consumer-friendly are electromagnetic waves (i.e. easy and radio waves) and accoustic waves (i.e. sound, vibration,..). whilst a wave is traveling in a particular textile it has a particular velocity. whilst the wave encounters an interface between 2 aspects there will be a transformation in velocity that could reason mirrored image and/or refraction.
