Add spaces: Putthenextmoduleorthogonallyintothefirstone.

Answer: Put the next module orthogonally into the first one.
Thenumberofhotelnightsmightnotalwayscoincidewiththenumberoftraveldaysifthereturnflightisatnight.

The number of hotel nights might not always coincide with the number of travel days if the return flight is at night.
[Q]: [Thismachine,firstproposedbyLordKelvin(WilliamThomson),performsintegrationwithawheelrollingonarotatingdisk.HartreevisitedBostontolearnabouttheworkingsofthedifferentialanalyzer,thenreturnedtoCambridgeandbuilthisown.]
[A]: [This machine, first proposed by Lord Kelvin (William Thomson ), performs integration with a wheel rolling on a rotating disk. Hartree visited Boston to learn about the workings of the differential analyzer, then returned to Cambridge and built his own.]
Problem: Add spaces: maintainingfaithandagoodconscience;which[last]some,havingputaway,havemadeshipwreckastofaith;

Spaces added: maintaining faith and a good conscience; which [last] some, having put away, have made shipwreck as to faith;
This text is missing some spaces, please add them: cute,doll,erotic,lactating,classic
cute, doll, erotic, lactating, classic
[Q]: [Martinus'suggestionsastohowwecanworkonourpersonaldevelopmentsoundverysimple.]
[A]:
[Martinus' suggestions as to how we can work on our personal development sound very simple.]