Making a weather vane and compass

The earliest weather vane we know about was in Greece in 48 BC, erected in honour of the Greek god...

The earliest weather vane we know about was in Greece in 48 BC, erected in honour of the Greek god...

English astronomer John Robinson invented the anemometer in 1846. Anemometers measure wind speed and have become one of the essential...

Barometers work on the principle that the air pressure can change. High air pressure tends to indicate fair weather, and...