Question 1

How did the refrigerator change what people eat?

Accepted Answer

It ended reliance on salting, smoking, and pickling, so households could store fresh food, shop weekly, and eat produce and meat year-round. It also enabled supermarkets, frozen foods, and a global cold chain that detached diets from local seasons.

Question 2

Did refrigeration reduce stomach cancer?

Accepted Answer

Yes, most epidemiologists link the twentieth-century decline in stomach cancer partly to refrigeration. As cold storage replaced heavy salt preservation, salt and nitrogen-compound intake fell and year-round fresh produce rose, reducing the chronic irritation that drove the disease.

Question 3

Who invented the refrigerator?

Accepted Answer

No single person did. William Cullen demonstrated artificial cooling in 1755, John Gorrie patented an ice machine in 1851, and Carl von Linde built the first reliable industrial system in 1876. Safe home refrigerators arrived after Thomas Midgley synthesized Freon in 1928.

technology

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