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Show xcellent Lxcellent Lesson Lessonin in Refrigeration RefrigerationHy Refrigerationfly Hy Dy fly RODEIIT RODERT ROBERT D POTfLRNew rorrtltNew rOTTl.n rOTTln POTfLR rorrtlt rOTTl.nNew . New York-Some York Some YorkSome York -Some Some - - Some of you youmay youmay youmay may ha\ ha hat hae \ e a had this air SIr condi condI- condItIoned conditioned conditioned - tioned , or so called ice creampie cream , pIe that is going around Youbake You Youbake Youbake bake the lower crust of a pielet pIe , let it cool , fill with ice cream creamput , , put mennguc menngue meringue on top and toastthe toast toastthe toastthe the meringue mermgue m in the oven un until un- un untIl until - til brown Your guests are areproperly areproperly areproperly properly bewildered and ap- ap appreciatIve appreciative ap appreciative - preciative to find the icecream ice icecream icecream cream inside mSIde still hard when whenthey whenthey whenthey they eat it itTheir ItTheir itTheir Their amaycment ama7ement amazement comes from a aJack alack alack Jack lack of understanding under.l5tandlng underl5tandlng . of heat insulatlon insu insulatlon insulation latlon lation , air conditioning requlre require requlremenls requirements requirementa menls ments and similar profound topics topicsv.hfch topicswhich topicswhich v.hfch vhfch which . you as the tbe pie fabricator tabricator , , cancheck can cancheck cancheck check off oIl on your fingersllerlngue fingersMeringue lingers fingers lingersmeringue meringue l\lerlngue l lerlngue \ Acts Act , ? Like Cork , . . The meringue , , } ) ou point out out , , , ofcourse of ofcourse ofcourse course , consists consist . of Just about noth nothing nothlag nothIng ing lag except bubbles of o1 air with wallsof walls wallsof wallsof of egg en white v.hlte vhlte . And the same propertles prop properties properties erties which give cork Its grand in inswaUon insulatlon insulation swaUon sulation qualities qual1Ues In preventing thepassage the thepassage thepassage passage of beat heat enable the meringue meringueto meringueto to keep the ice cream from meltfng meltfag melt fng fag during its brIef visit to the hot hotoven No one has perhaps figured out outthe outthe the size of a bubble of air in meungue me metmgue meargue tmgue argue But the cork cells arc are about aboutone aboutone aboutone one one thousandth of an inch in dlameter dl di dlameter diameter ameter and some 200 000 000 of them themwould \ would \ ould be needed to make up a cuble cubie cu bie ble inch Each cell of cork con contalns contains tains talns air and heat has great d1fficulty thinculty dim d1ffi thin dimculty culty in passing through even a asmall asmall small thickness of ot them themhot ISot 1\01 1 01 hot \ All Ail Cork Cod . From SpainThus SpainThus Spain SpainThus Thus while whtle your guests are arc eat eatIng eating eatIng Ing their air conditioned Ice creampie cream creampie creampie pie and the topic of convl'rsatlonI convl'rsatlonhas conversationhas conversation convl'rsatlon convlrsatlon ' I has naturally turned to cork cC'rk cCrk ' youadd you youmay ' may add that despite the lhe war In InSpain InSpain Spain the tupply supply of cork Is decreased decreased de creased only a little htUe Some o 0 ' them themmay themmay may not know that the bark o 01 . ' a acertaIn acertain certain species of live hve oak tre tree treethat treethat that we call cork . , is produced IPmuch II > Ii ' much greater quantities In Portu Portugal Portugal Portugal gal than It Jt Is In 1n Spam Spain And that thatos thatas thatas os as much or more than Is produced producedIn in Spain comes from Italy , France Franceand Franceand Franceand and North AtrlcaLast Africa Atrlca AfricaLast AfricaLast Last years year s Spanish harvest hanest of ofcork ofcork cork < ( technically it is known as the the'strip the'strip 'strip strip ' ' ' ) . wag v.as vas was naturally decreased by bythe bythe bythe the civil war but world markets marketshave marketshave marketshave have not yet been affected affecte . _ _ _ |