Add spaces: In1695hemarriedElizabethOliphant,andinthesameyearhepublishedCatoptricaeetdioptricaesphericaeelementawhichisaworkonoptics.

Answer: In 1695 he married Elizabeth Oliphant, and in the same year he published Catoptricae et dioptricae sphericae elementa which is a work on optics.

Add spaces: Thewaiterisstandinginthedoorwayasweleave.

Answer: The waiter is standing in the doorway as we leave.

Add spaces: Morningtemperatureswillbearound25°C.Duringthedaytheywillreachamaximumof33°C.Lowtemperaturesatnightwillbearound25°C.Wehaveweaknortherlywinds.

Answer:
Morning temperatures will be around 25 °C. During the day they will reach a maximum of 33 °C. Low temperatures at night will be around 25°C. We have weak northerly winds.