These phrases, which refer to the radio wavelength employed, are used in radio communications. There is no actual formal definition of longwave, however they are low frequency radio waves that are often below 540 kHz.
These low frequency radio waves travel across the earth via ground waves and may be picked up practically everywhere. On the other hand, shortwave radios encompass the spectrum from long or medium wave up to microwave frequencies and are higher frequency (hence shorter wavelength). Medium frequencies (HF) are a combination of ground and sky wave and may be received at medium to long ranges. Higher frequencies (VHF and UHF) are mostly short range sky wave propagation.
.panama is the only place in the world where you can see the sun rise on the pacific and set on the atlantic
.the canal h=generates fully one-third of panama's entire economy
.panama was the first latin american country to adopt the u.s. currency as its own
.the population of panama in 2016 was estimated by the united nations at 3,990,000, which places it as number 132 in population among the 233 nations of the world, the smallest population in central america
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Im not really sure but here is an explanation ?
Explanation:
Yazoo land fraud, in U.S. history, scheme by which Georgia legislators were bribed in 1795 to sell most of the land now making up the state of Mississippi (then a part of Georgia's western claims) to four land companies for the sum of $500,000, far below its potential market value. News of the Yazoo Act and the dealing
Because everybody needs to know what the weather is and if it's safe to fly or not and to tell the passengers
