Infrasound refers to soundwaves that occur below the range of human hearing (which usually bottoms out at a frequency of 20 Hz). It can have a variety of causes -- including vibrating machinery, earthquakes, ocean waves, and even some kinds of animal.
While not technically audible, infrasound is still capable of causing resonance in the human body. Some known side-effects include nausea, feelings of dread or fear, or even visual hallucinations. Infrasound is thought to be the cause of many reported ghost sightings.
All Writing.Com images are copyrighted and may not be copied / modified in any way. All other brand names & trademarks are owned by their respective companies.
Generated in 0.07 seconds at 3:47am on Dec 31, 2024 via server WEBX1.
View Portfolio
Visit Notebook
Send Gift Points
Awards
Badges
Send Email
Community Newsfeed
General Discussion
Sponsored Items
Book of Trinkets
Static Items
Books
Groups
Interactive Stories
Audio
Campfire Creatives
Community Notes
Crossword Puzzles
Documents
Folders
Images
In & Outs
Madlibs
Photo Albums
Polls
Product Reviews
Quizzes
Survey Forms
Web Pages
Word Searches
