The VLF (very low frequency) band, which is 3kHz to 30kHz, is able to penetrate water a couple of tens of meters. That makes this band best suited to communicate with a submerged submarine.
A periscope allows people to see above obstacles or around corners without being detected. It was commonly used on submarines to see above water while the submarine remained submerged. This helped to gather information about the surroundings and potential threats.
95 GHz
Microwaves are commonly used to communicate with satellites due to their ability to penetrate the Earth's atmosphere and transmit data over long distances. This frequency range is well-suited for satellite communication because it can effectively transmit signals without being significantly attenuated by the atmosphere.
Middle C in musical notation and performance is commonly referred to as a frequency of 261.63 Hz.
Yes, it is a fully-submerged plant; it's aquatic.
The reciprocal frequency is the inverse of the frequency, calculated by dividing 1 by the frequency value. It is commonly used in physics and engineering to describe the time period corresponding to a specific frequency.
By adding up the (one by one,) the frequency total in order to find the cumulative frequency, most commonly, you just then plot this on a cumulative frequency graph or box plot.
Frequency pushing refers to the intentional altering of the frequency of an oscillator, typically to increase its output frequency. This technique is commonly used in electronics and communication systems to achieve better performance and stability.
An RF remote is a remote control device that uses radio frequency (RF) signals to communicate with and control electronic devices. RF remotes do not require a direct line of sight to the device being controlled, unlike infrared (IR) remotes which do. They are commonly used in situations where the controlled device is not in the line of sight of the user.
Yes, Cabomba is a totally submerged plant commonly found in aquatic environments like ponds and aquariums. It has delicate, feather-like leaves that provide shelter for fish and other aquatic creatures.
A sonargram is a visual representation of underwater sound waves, typically produced by sonar technology. It displays the intensity and frequency of echoes received from objects or features beneath the water's surface, such as the seabed, marine life, or submerged structures. Sonargrams are commonly used in marine research, navigation, and fishing to analyze underwater environments.
Radio Frequency