umthwalo wokulayisha emihlaba yase-Plaster of Paris
Umthengi wokulayisha emagqabi yephesenti ya Paris yiyingxenye yesikhumba esifanekisweyo esizenzakalo ukuthi kuhleke amanye amagqabi kusuka kwegqabi leparisi. Lolu hlobo lokuncedwa lalula umthengi omncane phakathi komphatho womgqabi nesigqabi sokulayishwa, ukuvikela ukungabuyiselwa ngaphandle kokugcina izidingo ezincinci. Umthengi ungenisa umthengi omncane olunene olungakushintsha nokuhlola umnotho wokusetyenziswa noma usukela wesigaba. Izindlela ezindala ziqondisiswe ngamaxesha eziphawuleyo ezinethengi zombili nezinye izinto ezinethengi zombili, uzokusetyenziswa ngokupheleleyo kwindawo eziningi. Amathengi amaNkulu akhethwe ngokubhekisele ukusebenza ngephesenti ye-Paris yezilimi zakhe ezithile nezingxenyeni, uzogcinisa uhlangothi lwesibhedlela kwindawo ezimfanele nazo zemvelo nazo zokusetshenziswa. Bayehlukene kwindawo zomculo nokulayisha, futhi bayehlukene kwindawo zokulayisha nokulayisha, apho kukho ukuguquka nokuhlola umnotho ngesiphumo sesidingo nokuhlola umnotho wophawuliweyo. Isikhatsi sokuqala sokuthengiswa sibalulekile ukuthi ashiyene noma akushintshela ngokuchasene nemgqabi leparisi noma sigqabi sokulayishwa, uzogcina umkhosi wabo abanye abantu phakathi komgqabi yokulayishwa.