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The four lobes of the human brain are:
1) The Frontal Lobe
2) The Parietal Lobe
3) The Temporal Lobe
4) The Occipital Lobe
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The parietal lobes are the main parts of the brain that induce
the sense of touch.
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A radiating antenna does not only have a main beam (or lobe),
but also (smaller) beams on each side of the main beam called
sidelobe. There amplitude is depending on the design of the antenna
but should be as small as possible.