Chiedza chinogona kutsanangurwa nenzira dzakawanda.
Chiedza chinoita sechimedu chemuviri uye semafungu.
Chatinofunga nezvacho sechiedza chikamu chidiki che electromagnetic spectrum chinozivikanwa se human visible light, icho masero ari mumaziso evanhu anonzwa. Maziso emhuka zhinji anonzwa daro rakafanana.
Zvipembenene, shiri, uye kunyange katsi nembwa zvinogona kuona chiedza cheUV, nepo dzimwe mhuka dzichigona kuona infrared; hove, nyoka, uye kunyange umhutu!
Uropi hwemhuka dzinoyamwisa hunodudzira/hunochinja chiedza kuita 'ruvara'. Kureba kwechiedza kana kuti kuwanda kwechiedza ndiko kunosarudza ruvara rwedu rwatinoona. Kureba kwechiedza kunoratidzika kunge kwakatsvuka ukuwo kureba kwechiedza kupfupi kunoita sebhuruu.
Saka ruvara harusi chinhu chemukati menyika, asi kuumbwa kwepfungwa dzedu. Chinongomiririra chikamu chidiki che electromagnetic spectrum. Inongova photon pane imwe frequency.
Chimiro chikuru chechiedza irwizi rwemaphoton, anotenderera pahurefu hwemafungu chaiwo.