Wallberg Lecture1953 |
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Página 18
... supplies of more than 40 and part of its supplies of all the rest . I could go on , but I think that I have said enough ... supply of mater- ials all talk of progress is vain . It has been said that a wise man learns by experience but a ...
... supplies of more than 40 and part of its supplies of all the rest . I could go on , but I think that I have said enough ... supply of mater- ials all talk of progress is vain . It has been said that a wise man learns by experience but a ...
Página 20
... supplies of some materials will be exhausted . Lest this sound fantastic , despite the evidence already presented , consider the fact that there are places even today where local supplies of such a common material as sand are exhausted ...
... supplies of some materials will be exhausted . Lest this sound fantastic , despite the evidence already presented , consider the fact that there are places even today where local supplies of such a common material as sand are exhausted ...
Página 24
... supply of power . He knows that soil must be conserved , not just to be kept out of his waterways and reservoirs , not only to assist in good water management on the land , but mainly as one of the chief means man has for tapping the ...
... supply of power . He knows that soil must be conserved , not just to be kept out of his waterways and reservoirs , not only to assist in good water management on the land , but mainly as one of the chief means man has for tapping the ...
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Términos y frases comunes
1953 Resources Applied Science asbestos aspects British Columbia Canada of today Canadian capita cent citizens civil engineer coal Commission conservation consider Division of Building early engineering economic essential fact Faculty of Applied forests Francis Bacon fuel resources future implications important industrial interest land LECTURE Convocation Hall look ahead matter mind mineral fuels National Research Council natural resources non-renewable resources Ontario optimists organic resources petroleum philosophy of engineering physical power in Nature power stations production profession of engineering professional question quoted raw materials recent renewable resources Report Resources for Tomorrow resources of nature responsible Rideau Canal Shand Dam significant Sixth Lecturer SIXTH WALLBERG LECTURE Soil erosion sources of power speak speaker statement steward suggest supply talk about inexhaust things thought Tomorrow THE ENGINEER'S tonight treasure house United University of Toronto venture vital WALLBERG LECTURE Convocation waste water polluted words Yonge Street