2. Content and Topics Covered
• What are Infrasound's?
• The Effects of Infrasound's on humans
• Infrasonic Sounds: THE DRUG
• Manmade Infrasound's
• Natural Infrasound's
• Infrasound's in the Animal Kingdom
• The Nazi and Infrasound's
• Infrasound's created by mistakes

3. Infrasound's
• Is a sound that is lower then 20 Hz (Hertz)
• They are especially dangerous, due to its
strong vibrations, or oscillations.
• Infrasound waves hug the ground, travel for
long distances without losing strength, and are
unstoppable

4. The Effects of Infrasound's on humans
• Only a small amount of amplitude is required for it to have
effects on the human body
• Waves of infrasound are invisible, but the crash into living
tissue with great force.
• Infrasound disrupts the normal functioning of the middle and
inner ear, leading to nausea, imbalance, impaired equilibrium,
immobilization, and disorientation. Exposure to even mild
doses of infrasound can lead to illness.

5. Infrasonic Sounds: THE DRUG
• Infrasonic vibrations, though harmful, can
be pleasantly stimulating in mild levels.
• The effects of brief, mild exposure can
give a feeling of invigoration for hours.
• Feeling the effects of high-intensity/low-
frequency sound can actually become an
addiction

6. Man Made Infrasound's
• Men made infrasound’s are created from the use of atomic
weapons.
• The infrasound produced is a fast, strong sonic wave of
reduced air pressure and can travel a great distance away from
the intended target, while eating up everything in its path.
• Man-made structures, such as engines, cars, buses, trains,
motorcycles, and airplanes also produce a low infrasound
• Faulty electrical equipment call also cause infrasound's.

7. Natural Infrasound's
Natural explosions from volcanoes produce infrasonic waves
The shock waves, affecting both earth and atmosphere,
continue for hours.
Known to shatter windows over 1000 miles away.
•Earthquakes, pounding surf, waterfalls, calving of glacial
ice, tidal waves, solar flares, solar winds, hurricanes,
thunderstorms are also naturally caused infrasound's

8. Infrasound's in the Animal Kingdom
• Certain animals use infrasound. Elephants use it to
communicate at distances of up to 10 miles.
• "It has been known that certain whales are able to stun their
prey with powerful blasts of inaudible sounds. Whales focus
these powerful blasts at large squid and other fish to paralyze
and catch them. In some instances, they have been known to
burst their prey apart by tonal projection alone.”
John Cody’s Article on Infrasound

9. The Nazi and Infrasound's
•Nazi propaganda engineers used infrasound
•The result was a nation filled with anger and hatred.

10. Infrasound's created by mistakes
•Walt Disney and his artists accidentally experienced
infrasound on one occasion
• Amplified through the theatre system.
•The resulting tone, though brief in duration, produced in
the entire crowd nausea that lingered for several days.