Muchidzidzo fundoyetsimba, Rupambazuko rweChiedza (diffraction of light in English) rinoreva zviitiko zvakawanda zvinoitika kana masaisai asangana nechiro chinopingaidza kufamba kwawo. Kupambazuka kweChiedza kunoonekwa kuchinge kukombamiswa kwechiedza pachinosvika pane chipingidzo chidiki kana gwanza rine hwasha hunoda kuenzana nehurefu hwemasaisai. Zvimwechetezvo zvinoonekwa kana chiedza chichidarika munzvimbo inoti mutendeki werupambuko unoshanduka.