1. When Washingtonâs father Augustine died in 1743, George Washington became a slave owner at the early age of eleven. In his will, Augustine left his son the 280 acre family farm near Fredericksburg, Virginia. In addition, Washington was willed ten slaves.
On the decibel scale, the smallest audible sound (near total silence) is 0 dB. A sound 10 times more powerful is 10 dB. A sound 100 times more powerful than near total silence is 20 dB. A sound 1,000 times more powerful than near total silence is 30 dB.
To put it simply, this means that an increase of 10 decibels means the sound is ten times louder. So a noise measurement of 80 dB is ten times louder than a sound measured at 70 dB! As a frame of reference, here are the decibel levels of sounds you may encounter in your everyday life.0-30 dB, Very Faint.Most human adults cannot hear sounds below 0 decibels.Most sound in this range is almost inaudible.o a noise measurement of 80 dB is ten times louder than a sound measured at 70 dB! As a frame of reference, here are the decibel levels of sounds you may encounter in your everyday life. 0-30 dB, Very Faint. Most human adults cannot hear sounds below 0 decibels. Most sound in this range is almost inaudible.