Tag: science & technology

-40 degrees is the only temperature where Celsius and Fahrenheit scales intersect (C = F). At this point, -40C = -40F. The freezing point is 0C = 32F, and -273C is absolute zero.

Philology is the study of languages, including their history, development, and literature. It is distinct from osteology (bones), myology (muscles), and architecture (building design).

Meteorology is the scientific study of weather processes, atmospheric conditions, and weather forecasting. It focuses on the atmosphere, not meteors or other phenomena.

Martin Cooper invented the first handheld cellular phone. He made the first public call on a handheld mobile phone on April 3, 1973, while working at Motorola. The prototype phone he used weighed about 1.1 kg and took 10 hours to charge. Alexander Graham Bell invented the telephone, not the cell phone.

Alexander Fleming discovered penicillin in 1928 when he noticed that mold (Penicillium notatum) had contaminated his petri dishes and killed the bacteria. Florey and Chain later developed it into a medicine.

Samuel Morse developed the electric telegraph and Morse code in the 1830s, revolutionizing long-distance communication. Jonas Salk developed the polio vaccine, while George Washington Carver was an agricultural scientist.