PRESENTATION OUTLINE
WHY CAN'T HUMANS HEAR DOG WHISTLES?
HOW HEARING WORKS
Vocabulary
•Cochlea- Snail shaped captivity contsining fluid inside the ear.
•Ossicles- Tiny chain of bones inside the ear.
•Pinna- The upper outer cartilage on the outside of your ear.
FOUR TYPES OF HEARING
- Symbolic Level- Understanding Speech
- Asthetic Level- Appreciating Joyful Sounds
- Warning Level- Alarming/ Alerting Sounds
- Primitive Level- Background Noise
Now, back to the original question, why can't humans hear dog whistles?
Hz- Hertz- A measure of hearing frequency, or hearing cycles per-second
High Frequency Example- Whistle
Low Frequency Example- Bass Drum
So, Why Can't Humans Hear Dog Whistles?
The answer...humans just simply don't have the ability to hear frequencies as high as a dog whistle.
WORKS CITED
- The Cochlea of the Inner Ear. The Cochlea. N.p., n.d. Web. 21 May 2015. .
- “Dog Whistle.” Wikipedia. Wikipedia, n.d. Web. 22 May 2015. .
- “The Ear.” Hearing Link. Hearing Link, n.d. Web. 21 May 2015. .
- What is the highest frequency humans can here? UCSB Science Line. UoC, 2015. Web. 22 May 2015. .