tetheredballoon
A tethered balloon is an aerostat that is anchored to the ground by one or more tethers. These tethers prevent the balloon from drifting away and allow for controlled ascent and descent. Tethered balloons are typically filled with a lighter-than-air gas such as helium or hot air. They are used for a variety of purposes, including surveillance, advertising, weather observation, and recreational activities.
Historically, tethered balloons, often referred to as observation balloons, played a significant role in military operations,
Modern tethered balloons can be equipped with various payloads, including cameras, radar, communication equipment, and scientific