1 US patent 1446758, Thaddeus McHugh, Neck for musical instruments, issued 1923-02-27 Patent on truss rod. Note that the diagram in McHugh's patent document shows an incorrect design for the truss rod channel.
The Tsar Bomba was the culmination of a series of high-yield thermonuclear weapons designed by the Soviet Union and the United States during the 1950s (examples include the Mark-17 and B41).one of total destruction of the Tsar Bomba (as an example â over a map of Paris): red circle = total destruction (radius 35 kilometres (22 mi)), yellow circle = fireball (radius 3.5 kilometres (2.2 mi)).
The Tsardom of Russia (Ð ÑÑÑÐºÐ¾Ðµ ÑÐ°ÑÑÑÐ²Ð¾, Russkoye tsarstvo or Ð Ð¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ðµ ÑÐ°ÑÑÑÐ²Ð¾, Rossiyskoye tsarstvo), also known as the Tsardom of Muscovy, was the name of the centralized Russian state from assumption of the title of Tsar by Ivan IV in 1547 until the foundation of the Russian Empire by Peter the Great in 1721.