Quotes About Ores

For good steel, we should fire it as the Voevoda tells me you do, with stone coal. But our workmen are ignorant. We need metallurgists to find our ores and show us best how to mine them. Men come from Germany, from Italy, and then they leave us. We need ironfounders to teach us how to refine the metal, and forge it. Then we would have the best and cheapest steel in the world.

the Prospectus judges it "quite likely" that methods would be found to extract uranium from lower-grade ores. It mentions thorium as an alternative and much more abundant reactor fuel. (It still is, having not yet been used commercially as reactor fuel.)

The sexual classification of ores and stones was maintained in the alchemical writings and lapidaries of the Middle Ages;

Mediaeval mythology, rich and gorgeous, is a compound like Corinthian brass, into which many pure ores have been fused, or it is a full turbid river drawn from numerous feeders, which had their sources in remote climes.

To settle space, we will have to develop the ability to harvest and utilize the resources of the solar system, such as ores, ice, and the rays of the sun itself at levels of efficiency that will transform our relationship to our own planet Earth.