This text is missing some spaces, please add them: UnliketheMoors,Escherwasbothkeenandpermittedtouserecognisableobjectsinhisad-hocversionsofthetilings.
Unlike the Moors, Escher was both keen and permitted to use recognisable objects in his ad-hoc versions of the tilings.

This text is missing some spaces, please add them: Heintroducedtheterms'work'and'kineticenergy'withtheirpresentscientificmeaning.
He introduced the terms 'work' and 'kinetic energy' with their present scientific meaning.

This text is missing some spaces, please add them: -Herring,smokedsalmon,variouscoldcutmeatswithgarniture,bacon,sausages,scrambleeggs,soft-boiledeggsetc.
- Herring, smoked salmon, various cold cut meats with garniture, bacon, sausages, scramble eggs, soft-boiled eggs etc.