Add spaces: LaDioptriqueisaworkonopticsand,althoughDescartesdoesnotcitepreviousscientistsfortheideasheputsforward,infactthereislittlenew.Howeverhisapproachthroughexperimentwasanimportantcontribution.

Answer: La Dioptrique is a work on optics and, although Descartes does not cite previous scientists for the ideas he puts forward, in fact there is little new. However his approach through experiment was an important contribution.

Add spaces: AirtransportationtobeprovidedbetweenpointsintheUnitedStatesofAmerica("U.S."includingoverseasterritoriesandpossessions)issubjecttotheindividualtermsofthetransportingairlines,whicharehereinincorporatedbyreferenceandmadepartofthecontractofcarriage.

Answer: Air transportation to be provided between points in the United States of America ("U.S." including overseas territories and possessions) is subject to the individual terms of the transporting airlines, which are herein incorporated by reference and made part of the contract of carriage.

Add spaces: TheclosestairportforGmündis:

Answer:
The closest airport for Gmünd is: