Английский язык. С. Ю. Дмитриева
developed a theory that revolutionized the concept of the combustion engine. He envisioned an engine in which air is compressed to such a degree that there is an extreme rise in temperature. When fuel is injected into the piston chamber with this air, the fuel is ignited by the high temperature of the air, exploding it, forcing the piston down. Diesel soon received a patent for his design and began building experimental models of his engine. The first working model ran in 1893 with 26 % efficiency, more than double the efficiency of the steam engine. In 1897 the first diesel engine suitable for practical use operated at a remarkable efficiency of 75 %.
Wordlist
concept – концепция, понятие
to be injected – впрыскиваться
to receive a patent – получить патент
to envision – представлять себе
suitable for practical use – пригодный для практического применения
Answer the questions:
1. When was Rudolf Diesel born?
2. How did he envision an engine?
3. What did he receive a patent for?
4. When did the first engine suitable for practical use appear?
Nicola Tesla was a Serbian-American inventor, electrical engineer, mechanical engineer. physicist. American inventor Nicola Tesla patented an electricity-generating and distribution system that transmitted alternating current (AC). He developed and applied many other important ideas in the fields of electricity and radio.
The Tesla coil, an induction coil he invented, is used in radio technology and operates at every high frequencies.
Tesla worked briefly for the American inventor Thomas Edison (18471931), but they fell out because they disagreed about the best form of electric current to use for large-scale supply.
In the end, Tesla's alternating current system was favored over Edison's direct current (DC) system.
Wordlist
alternating current – переменный ток
current – ток coil – катушка
high frequencies – высокие частоты
to fall out – распадаться
Answer the questions:
1. Where is Nicola Tesla from?
2. What sphere did he work in?
3. What did he develop?
4. Whom did he work with? What was their disagreement?
Alfred Bernard Nobel was Swedish inventor and philanthropist. He was a son of a bankrupt, but became a millionaire; a scientist with a love of literature. He made a large fortune but lived a simple life. He was cheerful in company, and often sad in private.
A lover of mankind, he never had a wife or family to love him, a patriotic son of his native land, he died alone on foreign soil.
He discovered a new explosive, dynamite, to improve the peacetime industries of mining and road building, but saw it used as a weapon of war.
He was born in Stockholm on October 21, 1833 but moved to Russia with his parents in 1842, where his father made a strong position in engineering industry. He made a lot of money for his invention of landmine, but later went bankrupt. Alfred came to Sweden in 1863, and started his own study of explosives in his fathers laboratory.
He had never been to school or University but he studied privately and by the time he was twenty he became a skillful chemist and excellent linguist, speaking Swedish, Russian, German, French and English. Like his father, Alfred Nobel was imaginative and inventive, but he had better luck in business and showed more financial sense.
He was quick to see industrial openings for his scientific inventions and built up over 80 companies in 20 different countries. Indeed greatness lay in his outstanding ability those of a forward-looking industrialist.
But Nobel?s main concern was never with making money or even making scientific discoveries. He was always searching for a meaning to life, and from his youth he had taken a serious interest in literature and philosophy. Perhaps, because he could not find ordinary human love- he never married- he came to care deeply about the whole of mankind. He was always generous to the poor. His greatest wish, however, was to see an and to wars and he spent much time and money working for this cause until his death in Italy in 1896.
His famous will, in which he left to provide prizes for outstanding works in physics, chemistry, psychology, medicine, literature and peace, is a memorial to his interests and ideals. And so, the man who felt he should have died at birth is remembered and respected long after his death.
Wordlist
bankrupt- банкрот
cheerful- весёлый, радостный
explosive- взрывчатое вещество
weapon- оружие
peacetime- мирное время
landmine- мина
imaginative- образный
to show- показывать
quick- быстрый, быстро
to provide- обеспечивать
to respect- уважать
Answer the questions
1. Who was Alfred Bernhard Nobel?
2. When was Alfred Bernhard Nobel born?
3. What was discovered by him?
The rapidly advancing field of electronics led to construction of the first general-purpose electronic computer in 1946 at the University of Pennsylvania. It was Electronic Numerical Integrator And Computer or ENIAC, the device contained 18,000 vacuum tubes and had a speed of several hundred multiplications per minute. Its program was wired into the processor and had to be manually altered.
Later transistors appeared. The use of the transistor in computers began in the late 1950s. It marked the advent of smaller, faster elements than it was possible to create with the use of vacuum-tube machines. Because transistors use less power and have a much longer life, computers alone were improved a lot. They were called secondgeneration computers.
Components became smaller and the system became less expensive to build.
Modern digital computers are all conceptually similar, regardless of size and shape. Nevertheless, they can be divided into several categories on the basis of cost and performance.
The first one is the personal computer or microcomputer, a relatively low-cost machine, usually of desk-top size. Sometimes they are called laptops. They are small enough to fit in a briefcase. The second is the workstation, a microcomputer with enhanced graphics and communications capabilities that make it especially useful for office work. And the server computers, a large expensive machine with the capability of serving the needs of major business enterprises, government departments, scientific research establishments. The largest and fastest of these are called supercomputers.
A digital computer is not actually a single machine, in the sense that most people think of computers. Instead it is a system composed of five distinct elements: a central processing unit, input devices, memory storage devices, output devices and a communications network, called a «bus» that links all the elements of the system and connects the system itself to the external world.
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