spectrogram

"The astronomer presented a fascinating talk about distant galaxies in our school's science club. "

"The Venus of Willendorf was an early representation of the female body."

"The dry-stone wall used a large, flat through to support the top stones. "

"My daughter's teacher is very kind and helpful. "

"My family has a different ideal for my future than I do. "

"He is a student of life."

"heat radiation"

"The tadpole changed into a frog.   Stock prices are constantly changing."

"The spectrum of emotions my sister displayed during the argument was wide, from anger to sadness to confusion. "

"The composition of the band's new song involved several different instruments. "

"The celestial, a wise and gentle soul, often offered comfort to grieving families. "

"The frequency of bus service has been improved from one every 15 to one every 12 minutes."