Kyiv is the city with a history that spans for more than a millennium. It is one of the most picturesque cities in the world. Green streets fully harmonize with impressive architecture.
During the reign of Prince Volodymyr the Great, the first stone church in Ukraine was built. The Golden Gate, built in the 11th century, was the primary entrance to the fortress. It is very famous in Eastern Europe. It
was restored in 1989.
St Sophia’s Cathedral is located not far from the Golden Gate. It faces a square in the centre of which there is a monument to Bohdan Khmelnytsky, the Hetman of the Ukrainian Cossacks.
St Sophia’s Cathedral was often used to receive foreign ambassadors and sign treaties in the past.
За сделано 10 предложений.
1. the poincaré conjecture.
in 2002, the russian mathematician grigori perelman proved the poincaré conjecture. this is a very serious discovery in mathematics. it was one of the seven tasks of the millennium. for this work, he received the prestigious fields medal, an analogue of the nobel prize in mathematics.
2. quantum clock.
quantum clocks are the most accurate chronometer in the world, surpassing all previously existing ones. nobel laureates of 2012 serge arosh and david wineland made a discovery that allowed to overcome the quantum barrier.
3. the discovery of eris.
the eris is the second after the massive pluto massive dwarf planet of the solar system. it was the discovery of eris from pluto that ceased to be the ninth planet, and passed into the category of "dwarf".
4. created the first synthetic bacterial cell.
in 2010, scientists from the craig venter institute created the first fully synthetic chromosome with the genome. when it was embedded in a bacterial cell devoid of genetic material, it began to function and divide according to the laws prescribed by the new genome.
5. higgs boson.
this was experimental evidence of the existence of the higgs boson. the practical significance of the discovery of the higgs boson is that scientists are opening up prospects for the development of anti-gravity and the development of engines that do not require energy to operate.
1. c
2. b
3. a
Все очень легко и просто! ;-)