The C1 Ariete is the Italian Army’s main battle tank. Main armament: 120mm L44 smooth bore gun.It enjoys much of its power thanks to a 1,500hp engine and hydropneumatic suspension and is the most expensive tank in the world.

The tank’s autoloader gives it a faster rate of fire than most other MBTs on the field. The Leclerc sports a crew of 3, without the need for a loader, as well as modular composite armor. Main armament: 120mm L52 smooth bore autoloader.These ten tanks are the most modern MBTs you can find on the battlefield, in no particular order. In the 21st-century, the Main Battle Tank (MBT) has become an extremely sophisticated machine, with incredible firepower. The name “Tank” came from the secretive fashion in which the British were manufacturing their tanks – different parts were constructed in various factories, and workers were told they were building water tanks. However, when physicists started looking at higher and higher resolution, they discovered that around these three “valence” quarks in a proton is a churning, quantum-mechanical sea of other particles that pop in and out of existence.The first ever tank emerged on the battlefield in 1916, during the first World War. The simple, oft-repeated story is that the proton is made of three quarks – two up quarks and one down quark – locked together by the vice-like grip of the strong nuclear force that binds atomic nuclei. Here are five of the biggest unanswered questions about the proton. It could alter our understanding of the universe and the fundamental laws that govern it. Finding the answers won’t just change how we think about the particles themselves. Whether protons live forever, how big they are and what they are really made from are just some of the questions physicists continue to grapple with. Yet despite our best efforts in the intervening years, much about this ubiquitous particle remains shrouded in mystery. It was just over a century ago that Ernest Rutherford demonstrated that protons are one of the basic building blocks of all atomic nuclei. Yet we still don’t really understand them. They make up more than 86 per cent of the visible matter in the universe by mass, and they are fundamental to our existence. The number of protons in an atom determines whether it is hydrogen, carbon, oxygen or uranium. DEEP in the heart of every atom lurk protons, tiny particles from which the chemical elements were forged, first in the searing heat of the big bang and then in the nuclear furnaces of stars.

Modern tanks quiz worlds largest tank