Interesting Decibel information
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Interesting Decibel information I found this information on decibels, pretty interesting.
http://www.makeitlouder.com/Decibel%20Level%20Chart.txt
Decibels in BOLD
-30 (N) ONE HUMAN TALKING 20 MILES AWAY ( 60 DB / METER AT A DISTANCE OF 20 MILES
30 (P) TOTALLY QUIET NIGHTIME IN DESERT-IMPOSSIBLE ANYWHERE NEAR CITY
85 BEGINNING OF HEARING DAMAGE, EARPLUGS SHOULD BE WORN
110 A CAR STEREO WITH TWO 6 X 9” SPEAKERS AND 100 WATTS
140 EXTREMELY DAMAGING TO HEARING NO MATTER HOW SHORT THE TIME EXPOSURE
163 (P)GLASSBREAKING LEVEL, MINIMUM
191 (N)BOMB-VERY SMALL 1 LB. OR GRENADE
195-190 (P) HUMAN EARDRUMS RUPTURE
215 SPACE SHUTTLE LAUNCH EXHAUST, APPROXIMATELY 3 MILES PER SECOND
232 (N)LARGE NON-NUCLEAR EXPLOSION
286 (N)MT. SAINT HELENS VOLCANO ERUPTION-BABY VOLCANO, BLEW DOWN TREES 16 MILES AWAY. COULD BE SEEN FROM OUTER SPACE ON THE SPACE SHUTTLE BLEW OUT SOME WINDOWS IN SEATTLE-TACOMA 200 MILES AWAY
302?(N) TUNGUSTA SIBERIA METEOR, BLEW DOWN HOUSES 600 MILES AWAY
310 (N)KRAKATOA VOLCANO ERUPTION-1883 A.D., CRACKED ONE FOOT THICK CONCRETE AT 300 MILES, CREATED A 3000 FOOT TIDAL WAVE, HEARD 3100 MILES AWAY,SOUND PRESSURE CAUSED BAROMETERS TO FLUCTUATE WILDLY AT 100 MILES INDICATING LEVELS OF AT LEAST 170-190 DB (P) AT THIS DISTANCE OF 100 MILES EVEN WHEN SHOUTING IN SOMEONES EAR, COULD NOT BE HEARD AT 100 MILES CAUSED FOG TO APPEAR AND DISAPPEAR INSTANTLY AT HUNDREDS OF MILES ROCKS WERE THROWN TO A HIEGHT OF 34 MILES. DUST AND DEBRIS FELL CONTINOUSLY FOR 10 DAYS AFTER BLAST
320 (N)VOLCANO ERUPTION, TAMBORA INDONESIA,1815, EJECTED 36 CUBIC MILES.APPROXIMATELY EQUAL TO 14,000 MEGATON NUCLEAR BOMBS OR A 14GIGATON BOMB BASED ON EJECTED VOLUME
http://www.makeitlouder.com/Decibel%20Level%20Chart.txt
Decibels in BOLD
-30 (N) ONE HUMAN TALKING 20 MILES AWAY ( 60 DB / METER AT A DISTANCE OF 20 MILES
30 (P) TOTALLY QUIET NIGHTIME IN DESERT-IMPOSSIBLE ANYWHERE NEAR CITY
85 BEGINNING OF HEARING DAMAGE, EARPLUGS SHOULD BE WORN
110 A CAR STEREO WITH TWO 6 X 9” SPEAKERS AND 100 WATTS
140 EXTREMELY DAMAGING TO HEARING NO MATTER HOW SHORT THE TIME EXPOSURE
163 (P)GLASSBREAKING LEVEL, MINIMUM
191 (N)BOMB-VERY SMALL 1 LB. OR GRENADE
195-190 (P) HUMAN EARDRUMS RUPTURE
215 SPACE SHUTTLE LAUNCH EXHAUST, APPROXIMATELY 3 MILES PER SECOND
232 (N)LARGE NON-NUCLEAR EXPLOSION
286 (N)MT. SAINT HELENS VOLCANO ERUPTION-BABY VOLCANO, BLEW DOWN TREES 16 MILES AWAY. COULD BE SEEN FROM OUTER SPACE ON THE SPACE SHUTTLE BLEW OUT SOME WINDOWS IN SEATTLE-TACOMA 200 MILES AWAY
302?(N) TUNGUSTA SIBERIA METEOR, BLEW DOWN HOUSES 600 MILES AWAY
310 (N)KRAKATOA VOLCANO ERUPTION-1883 A.D., CRACKED ONE FOOT THICK CONCRETE AT 300 MILES, CREATED A 3000 FOOT TIDAL WAVE, HEARD 3100 MILES AWAY,SOUND PRESSURE CAUSED BAROMETERS TO FLUCTUATE WILDLY AT 100 MILES INDICATING LEVELS OF AT LEAST 170-190 DB (P) AT THIS DISTANCE OF 100 MILES EVEN WHEN SHOUTING IN SOMEONES EAR, COULD NOT BE HEARD AT 100 MILES CAUSED FOG TO APPEAR AND DISAPPEAR INSTANTLY AT HUNDREDS OF MILES ROCKS WERE THROWN TO A HIEGHT OF 34 MILES. DUST AND DEBRIS FELL CONTINOUSLY FOR 10 DAYS AFTER BLAST
320 (N)VOLCANO ERUPTION, TAMBORA INDONESIA,1815, EJECTED 36 CUBIC MILES.APPROXIMATELY EQUAL TO 14,000 MEGATON NUCLEAR BOMBS OR A 14GIGATON BOMB BASED ON EJECTED VOLUME
Thread Starter
11 Second Club
iTrader: (16)
Joined: Jan 2005
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From: Southern Oklahoma
yea, i thought so too. I was doing research trying to figure out the difference between decibels, because I purchased a spiral flow, and i read somewhere it takes it down 9DBs
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edit: 163-153 (N) N.H.R.A. DRAGSTERS- 5000 TO 7000 HORSEPOWER, LIQUID NITROGLYCERIN FUEL,
EARTHSHAKING AT 50 FEET, HUMANS FIND IT HARD TO SEE, AND BREATHE 140db(P) -REF.1.1987
edit: 163-153 (N) N.H.R.A. DRAGSTERS- 5000 TO 7000 HORSEPOWER, LIQUID NITROGLYCERIN FUEL,
EARTHSHAKING AT 50 FEET, HUMANS FIND IT HARD TO SEE, AND BREATHE 140db(P) -REF.1.1987
