Other Uses
Sandbags are also used for disposable ballast in gas balloons, and as counterweights for theatre sets.
Sandbags have been used since at least the late 18th century. They have traditionally been filled manually using shovels. Since the 1990s, machine filling has become more common, which allows the work to be done more quickly and efficiently.
During World War II, sandbags were also used as extemporized "soft armor" on American tanks, to help defeat German anti-tank rounds, but were ineffective.
Sandbags are also used in weight training, and with rear-wheel drive cars to increase traction in inclement weather.
In games and various kinds of adversarial settings, the term sandbagging refers to the practice of purposely placing oneself in a weaker position so as to give the deceptive impression that one is less skilled than one truly is.
Sandbags are often used to temporarily stabilize soil from erosion, such as oceanfront structures whose foundations have been undermined from heavy waves.
An often unknown use of sandbags includes panel restoration and re-creation. The sandbag being used behind the panel as it is beaten by a hollowing hammer to create initial angles and curves.
Sandbags are also used in earthbag construction to make inexpensive, environmentally sustainable homes.
Read more about this topic: Sandbag