As we all know, a lot of animals can produce ultrasonic sound which is greater than 20 kilohertz for several purposes. However, do you know which birds & animals are capable of producing ultrasonic frequencies? Oil Bird Steatornis caripensis, the oil bird of South America, sleep in caves during the day and forages during the
So far there are no known negative effects of ultrasonic frequencies on human body. These frequencies, as a matter of fact, are used to detect and treat many human diseases.
An ultrasonic cleaner is a cleaner that uses ultrasonic sound waves to clean objects. Ultrasonic means having a high frequency. This frequency is too high for the human ear to detect. The ultrasonic sound waves excite the cleaning solution. When excited, the cleaning solution acts upon and removes the impurities such as grease, dust particles,