Kilobytes Megabytes Gigabytes. The size of information in the computer is measured in kilobytes, megabytes, gigabytes, and terabytes. In this section, we'll look at common sizes you would see in real life, and work some arithmetic. Any thinking person today should have a rough idea of what KB, MB and GB are.
The maximum upper range of human hearing is about 20 kHz for children, declining to 15-17 kHz for middle-age adults. The top end of a dog's hearing range is about 45 kHz, while a cat's is 64 kHz.
What makes 52 Hertz so compelling a study subject is that large baleen whales (like blue and fin) communicate at a frequency range that ends at less than half the 52 Hz range (typically 15 to 25 Hz) which explains why the whaleâs calls go unanswered â no other whale (it seems) can hear it.