Uses
Radio waves bring music to your radio, and also carry signals for your television and cellular phones. The antennae on your television set receive the signal, in the form of electromagnetic waves, that is broadcasted from the television station. It is displayed on your television screen. In the form of radar it is used also for sending out signals and picking up their reflections from objects in their path. Long-range radio signals enable astronauts to communicate with the earth from the moon and carry information from space probes as they travel to distant planets.
Radio waves bring music to your radio, and also carry signals for your television and cellular phones. The antennae on your television set receive the signal, in the form of electromagnetic waves, that is broadcasted from the television station. It is displayed on your television screen. In the form of radar it is used also for sending out signals and picking up their reflections from objects in their path. Long-range radio signals enable astronauts to communicate with the earth from the moon and carry information from space probes as they travel to distant planets.
Positive Effects
Radio waves silently transmit information all over the world, and is fundamental in many of the most important technological advances of the 20th century. Radio waves are the basis for almost all non-written communication and most wireless technologies. They transmit signals that carry pictures, data, music and conversations invisibly over long distances. Many household products we consider necessary depend on radio waves. AM and FM radios, wireless networks, cordless and cellular telephones, radio-controlled toys, television programming, garage door openers and GPS receivers -- all of these, along with countless other devices, depend on silent, invisible radio waves to operate. Without technology based on radio waves, our day to day life may seem impossible.
Radio waves silently transmit information all over the world, and is fundamental in many of the most important technological advances of the 20th century. Radio waves are the basis for almost all non-written communication and most wireless technologies. They transmit signals that carry pictures, data, music and conversations invisibly over long distances. Many household products we consider necessary depend on radio waves. AM and FM radios, wireless networks, cordless and cellular telephones, radio-controlled toys, television programming, garage door openers and GPS receivers -- all of these, along with countless other devices, depend on silent, invisible radio waves to operate. Without technology based on radio waves, our day to day life may seem impossible.
Negative Effects
o this date there is no consensus on wether radio waves are dangerous or hazardous to our health. Any potential danger is likely to be more worrisome for those who personally use cell phones, because the phones are directly against their heads. Also, cell towers operate at low power. This is part of what makes the cell phone system work properly. The level of power from a cell tower is similar to that of a citizens' band (CB) radio. According to the American Cancer Society, the types of radio waves generated by cell phones are unlikely to cause cancer, since they are not ionizing radiation, and they have no ability to mutate DNA in human cells so that they produce cancer.
o this date there is no consensus on wether radio waves are dangerous or hazardous to our health. Any potential danger is likely to be more worrisome for those who personally use cell phones, because the phones are directly against their heads. Also, cell towers operate at low power. This is part of what makes the cell phone system work properly. The level of power from a cell tower is similar to that of a citizens' band (CB) radio. According to the American Cancer Society, the types of radio waves generated by cell phones are unlikely to cause cancer, since they are not ionizing radiation, and they have no ability to mutate DNA in human cells so that they produce cancer.