Task: Translation
Input (English): English sentence: This was an experiment which Arago wanted to perform himself, but his failing eyesight meant that he could not undertake exacting experimental work himself.
Output (Tagalog): Ito ay isang eksperimento na Arago kinakailangan upang maisagawa ang kanyang sarili, ngunit ang kanyang paningin kung hindi sinadya na siya ay hindi magsagawa ng mahirap experimental trabaho kanyang sarili.