There is no difference between the two.
what is ment by rhetorical norms
english
A spire is an architectural feature on a building. It is a tall, tapering peak on a roof. An antenna is a functional piece of equipment for receiving or transmitting electromagnetic signals (e.g. radio, TV, cellular telephone). Some types are tall but the shape depends almost entirely on the signal to be sent or received.
the gooch
Synapse
synaptic cleft
Car radios are for receiving music and entertainment programs. Most aircraft will not have this type of radio. They will only have a 2 way transmitting and receiving radio for communicating with airports and other aircraft.
Hertz Antenna is lambda by 2 antenna & marconi antenna is lambda by 4 antenna...
An active antenna has a amplifier built in, a standard antenna does not. AKA powered antenna.
an antenna is used for transmitting and receiving signals with the use of electro magnetic waves. without the antenna there will not be any communication between one end and the other end. so, antennas play an important role using the EM waves. these em waves take energy from conducting electrons and transmits the information to the other end.
radio signal bents around the curvature of earth and hence travel longer distance than the line of sight signal. At ultra high frequencies signal follows the line of sight path and hence maximum communication distance is limited due to curvature of earth for given height of transmitting and receiving antenna
An omnidirectional antenna can be practically implemented but an isotropic antenna cannot be implemented practically. An isotropic antenna resembles an ideal antenna with ideal values for all parameters.