wireless commumiction - microwaves Flashcards
(5 cards)
1
Q
how are microwaves used by slight
A
tv and phones send signels to satellite and then they are sent back to earth.
microwaves are used by remote sensing satellites to monter earth.
2
Q
why are microwaves transmitters close to gather
A
the waves don’t bend around osticals so they hath to bee in line of sight
3
Q
how dose the wether effect the signel strength
A
some of the microwaves can be assorted by water so if it is raining you will lose signal strength.
4
Q
what happens if thing are absorber in living things
A
the waves are absorbed by living tissue and can burn or kill cells
5
Q
why do some people think that phones and mast are dab for your health
A
they think that the midwives are cill ing the cels in your head
