15 Ancient Inventions That Were Way Ahead of Their Time
These 15 ancient inventions were so clever they’d still impress a room full of modern engineers.
Ancient
18 Strange Ways People Used to Measure the Temperature
Long before the invention of modern thermometers, humans devised a variety of novel methods for measuring temperature and detecting heat and cold, ranging from everyday objects to natural phenomena. These unusual methods reflect previous generations' ingenuity and resourcefulness in understanding and tracking temperature.