input question: Fix spacing: Theseopacitiescanbelocatedindifferentplacesandmakethevisionblurredanddistorted.

output answer: These opacities can be located in different places and make the vision blurred and distorted.

input question: Fix spacing: Howevertheconstructionproceededslowerthanhadbeenexpected.

output answer: However the construction proceeded slower than had been expected.

input question: Fix spacing: Radioisotopedatingconveysanauraofreliabilitybothtothegeneralpublicandprofessionalscientists.

output answer: Radioisotope dating conveys an aura of reliability both to the general public and professional scientists.

input question: Fix spacing: Birth:abt1824inBallum,Denmark

output answer:
Birth: abt 1824 in Ballum, Denmark