The 4.2 cm Pak 41 (Panzerabwehrkanone —"anti-tank gun") was a light anti-tank gun issued to German airborne units in World War II. This gun was externally...

43 nm in diameter. Researchers suggested that it can be either (5,1) or (4,2) SWCNT, but the exact type of the carbon nanotube remains questionable. (3...

Rangefinder, ruby laser cavity, used by artillery forward observers and 4,2-inch mortar forward observers with infantry and armor units, Martin Marietta...

2012). Found in Svan population from Caucasus (Georgia) T* 10,4% and T1 4,2%. T1a1a1 is particularly common in countries with high levels of Y-haplogroup...