Remove the spaces from the following sentence: 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.
Thismachine,firstproposedbyLordKelvin(WilliamThomson),performsintegrationwithawheelrollingonarotatingdisk.HartreevisitedBostontolearnabouttheworkingsofthedifferentialanalyzer,thenreturnedtoCambridgeandbuilthisown.