Guinness World Records 2013 Honorees Include Tallest Cat, Tallest Dog And Tallest Donkey. This is a bittersweet time for Debby Maraspini. The 2013 edition of Guinness World Records just came out and her beloved cat, Savannah Islands Trouble -- Trouble for short -- is in the book as the tallest cat ever, with a height of 19 inches.
Refraction is the change in direction of waves that occurs when waves travel from one medium to another. Refraction is always accompanied by a wavelength and speed change. Diffraction is the bending of waves around obstacles and openings. The amount of diffraction increases with increasing wavelength.
Refracting is the phenomena that takes place when sound waves are reflected from a surface along parallel lines. During this phenomena the phase velocity of the wave changes but the frequency of the wave stays the same. 5 people found this useful.