Shooting a whistling arrow. As the arrow sailed into the sky, air passed through the 2 triangular vents in the gourd. This created a high pitched whistling sound as the arrow accelerated upwards and then downwards. Whistling arrows were utilized by ancient armies to signal their troops. © D. Labiste 2004 Preparedness Kits, Tech Communication, Preppingthat Emergency, Fantasy Archer, Low Tech, Emergency Preparedness, Pinterest 101, Start Preppingthat, Beauty Object
Shooting a whistling arrow. As the arrow sailed into the sky, air passed through the 2 triangular vents in the gourd. This created a high pitched whistling sound as the arrow accelerated upwards and then downwards. Whistling arrows were utilized by ancient armies to signal their troops. © D. Labiste 2004
Repurposed dish antenna to boost wi-fi and cell phone signals.
German soldiers wear respirators as they place carrier pigeons into a gas-proof chamber, presumably during an anti-gas drill.
SKYWARN Recognition Day, National Weather Service, NOAA (December 1, 2012; ARRL ham radio)
Keeping an Eye on the Skies with SKYWARN - using HAM radio operators to help with weather emergencies
Ham Radio Cheat Sheet , communication is key
Harold Lee Jackson, the first Black licensed ham radio operator in Canada
Homing pigeons were often used to send messages. In World War II alone, the UK used an estimated 250,000 homing pigeons to discretely get messages out from troops behind enemy lines. The British upped the ante by training a small force of peregrine falcons to patrol the coast of Great Britain and intercept outgoing homing pigeons. The project was successful, at least two enemy pigeons were captured alive.
Homing Pigeon to deliver messages to other communes
In this debut film, director Alessandro Croseri delivers a stunningly beautiful ode to combat pigeons and their pigeoneers. The documentary follows Col. Clifford Poutre at age 103 during the final year of his life and examines his innovations in the training of homing pigeons for combat missions during World War II.
In 1907, German apothecary Julius Neubronner invented an aerial photography technique known as pigeon photography. By affixing a lightweight time-delayed miniature camera to an aluminium breast harness, Neubronner attached his design to homing pigeons who would then be able to capture aerial photographs during their flight.
New Study Shows New Theory of How Homing Pigeons Find Home