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The name was chosen to evoke the famous German Big Bertha howitzer. The original Big Bertha driver was launched in 1991. At the time, its design was considered highly modern and a radical departure from older drivers: it was crafted entirely of stainless steel and the head had a volume of 190 cm 3 (12 cu in).
The nickname "Big Bertha" appeared early in the war, when German soldiers named the guns Dicke Berta at the Battle of Liège, a reference to Bertha Krupp, who had inherited the Krupp works from her father. The name spread to German newspapers and then to Allied troops as "Big Bertha" and became slang for all heavy German artillery, but ...
The 42 cm kurze Marinekanone L/12, or Gamma-Gerät ("Gamma Device"), was a German siege gun built by Krupp.The Gamma-Gerät ' s barrel diameter was 42 cm (17 in), making it one of the largest artillery pieces ever fielded.
A muscle back is the more traditional design and consists of a solid metal head, typically made of forged iron. The design of the club typically distributes the metal more evenly around the clubhead (though most designs still place more weight along the sole of the club), which makes the center of mass of the club higher and the moment of inertia (the clubhead's resistance to rotation) lower ...
Big Bertha (lunar sample), the third largest lunar rock collected by the Apollo program during Apollo 14; Bertha Heyman, a.k.a. "Big Bertha", a 19th-century criminal; Big Bertha (cow), a cow that broke two Guinness World Records, for being both the oldest and having the most offspring; Big Bertha (golf club), a line of golf clubs from Callaway Golf
Barrel nut Attaching the barrel to the receiver using a barrel nut and a barrel with a shoulder is an alternative to action threads, which has been used in firearms such as the Sten gun and AR-15. Hand tools Quick barrel change systems is an increasingly popular alternative, as seen in for example SIG Sauer 200 STR, Roessler Titan or Blaser R8.
A sand wedge, or sand iron, is a type of golf club, an open-faced wedge primarily designed for getting out of sand bunkers. [1] It has the widest sole of any wedge, which provides the greatest amount of bounce , allowing the club head to glide through sand and avoid digging in.
The original patent filed by Hermann Gerlich in 1932 [6]. The squeeze bore concept was first patented by German inventor Carl Puff in 1903, [7] [8] even though the general principle was known already in 19th century and later applied in lighter fashion on Armstrong guns, on which only the muzzle yet not the barrel itself was of slightly smaller diameter (to cast off the sealing leather-bag ...