People Sniffer

“People sniffer was the field name for a series of U.S. Army personnel detectors used during the Vietnam War. The purpose was to detect enemy soldiers in hidden positions, which were often employed in the jungle combat conditions of Vietnam.”

“The detection method used by people sniffers depended on effluents unique to human beings; such as those found in urine and sweat.”

“While useful, the detectors had to be used with some caution. People sniffers were known to be oversensitive and would often detect civilians or animals excreting bodily waste.”

-- WIKIPEDIA, People sniffer

Schwerer Gustav

"Schwerer Gustav…was the name of a German 80 cm K (E) railway gun. It was developed in the late 1930s by Krupp as siege artillery for the explicit purpose of destroying the main forts of the French Maginot Line, the strongest fortifications then in existence. The fully assembled gun weighed nearly 1,350 tonnes, and could fire shells weighing seven tonnes to a range of 47 kilometres (29 mi)."

"It was the largest-calibre rifled weapon ever used in combat, the heaviest mobile artillery piece ever built in terms of overall weight, and fired the heaviest shells of any artillery piece."

"Crew: 250 to assemble the gun in 3 days (54 hours), 2,500 to lay track and dig embankments. 2 Flak battalions to protect the gun from air attack."

-- WIKIPEDIA, Schwerer Gustav

Trojan Room Coffee Pot

"The Trojan Room coffee pot was the inspiration for the world's first webcam."

"The webcam was created to help people working in other parts of the building avoid pointless trips to the coffee room by providing, on the user's desktop computer, a live 128×128 greyscale picture of the state of the coffee pot."

-- WIKIPEDIA, Trojan Room coffee pot