TEMPERATURE SHIFTS

Chicago residents enjoyed warm 70‑degree days on Friday and Saturday, but a sudden shift will bring cooler temperatures by Sunday. City readings are expected to drop into the low 40s, while farther south suburbs may stay around 50 degrees. Strong winds from the north will make it feel even colder,

Ever wondered how bacteria like Escherichia coli manage to survive and grow in different temperatures? Scientists used tiny microscopes to watch E. coli in action. They found that these tiny organisms slowly adjust their growth rate when temperature changes. This happens over about 1. 5 generations