The aircraft carriers of the Nimitz Class are the largest warships currently in service in the world. At around $4.5 billion each, these carriers are the most expensive ship on this list. The ten ships of this class help the United States flex its military muscle around the world.
Introduction to China Jaw Crusher. Jaw crushers machine are invented in 1858 and first widely applied in road paving and then in mines.
The Boombox was invented in 1975 by The Woelfel brothers. The first boom box was a box made of wood along with speakers and a car stereo system of an 8-track. The local radio station and cassettes were played by it.Later CDs were played in it in 1990s.he first boom box was a box made of wood along with speakers and a car stereo system of an 8-track. The local radio station and cassettes were played by it. Later CDs were played in it in 1990s.