"Dr. Hal, you said they could make ice in ancient Egypt. Without electricity, how could they have a refrigerator? I've been in North Africa, and it's hot!”
Answer:
William Pierce seems to doubt my remark that Pharaoh Horemheb used to enjoy a frosty cold glass of beer back in the 18th Dynasty. But he did, and without a refrigerator. Stop thinking in Twenty-first Century American terms. They didn't need a powerful machine to force ice into being. All they needed was dry air and a clear night. Pharaoh's slaves used flat, broad, porous earthenware trays. These they filled with a few centimeters of water. With a black sky, continuous evaporation and radiation into empty space cooled the trays and the liquid, the temperature of the liquid dropped, and given almost no humidity in the Egyptian desert, the trays would freeze solid. In the morning the slaves harvested the ice and filled the trays again for the next night. The ice was stored in caves. That's how they did it, Bill. Ask me sometime about the lost Egyptian secret of tempering bronze.
