5th-Science,+Technology,+and+Innovation

Science  Great leaps in science took place in the 1930's such as the discovery of alkaloid colchine. This is a chemical that causes mutations in plants discovered by Albert Francis Blakeslee. This discovery helpes us identify the chemical influences in heredity. In March of 1930 Thomas Midgley Jr created a way to manufacture the gas freon. This gas is commonly used in air conitioners or refrigerators. Seeing as it was not known how to properly dispose of this gas, the polution greatly contributed to the hole now in the ozone layer. **<--__1930 Refrigerator__**