<telo><p><i>fyz.</i> a) <a href="javascript:top.GetURL('101368');" target="_self">stroj</a>, kter² bez dodßvßnφ energie stßle konß mechanickou prßci; nerealizovatelnΘ, v rozporu se zßkonem zachovßnφ <a href="javascript:top.GetURL('026654');" target="_self">energie</a>; b) <a href="javascript:top.GetURL('106393');" target="_self">termodynamika</a>. </p></telo>