tool – инструмент
to solve a problem – решить проблему
framework – основа
creative mind – творческий ум
obligatory – обязательные
desirable – желательный, заданный
feedback – обратная связь
Answer the questions.
1. What is engineering?
2. What is the final product?
3. Is it important to consult scientific literature?
4. Do you trust your intuition?
Text 2
Machines
In his activities man makes use of a multitude of machines. Although most of them are of quite recent origin, a few simple ones are considered to have come from very ancient times. There were a lot of prehistoric implements, the bow and the arrow being the most ancient. They were his tools in his struggle for existence.
The wheel, one of the greatest inventions ever made by man is also of prehistoric origin. The inclined plane and its use have also been known. It was doubtless by its use that Egyptian slaves lifted the huge stones that went into the construction of the great pyramids.
The lever is probably of equally ancient origin. It is mentioned by the Greek Philosopher Aristotle as a means of lifting a great weight by using a very small force.
Tremendous changes in machine development were made in the 20>th century. Now we use not only powerful devices, precise instruments, but also ―clever machines.‖
Wordlist
activity – деятельность
multitude – множество, огромное количество
bow and arrow – лук и стрела
to be of recent origin – быть недавнего происхождения
implement – орудие, приспособление
wheel – колесо
inclined plane – наклонная плоскость
slave – раб lever – рычаг
powerful device – мощное устройство
Answer the questions.
1. What implements have come from ancient times?
2. What role did the inclined plane play?
3. What can you say about machine development in the 20th century?
4. What "clever machines" do you know?
5. What were these machines used for?
Text 3
The internal combustion engine
The internal combustion engine is an engine in which the combustion of a fuel (normally a fossil fuel) occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine (ICE) the expansion of the high-temperature and high-pressure gases produced by combustion apply direct force to some component of the engine. The force is applied typically to pistons, turbine blades, or a nozzle. This force moves the component over a distance, transforming chemical energy into useful mechanical energy. The first commercially successful internal combustion engine was created by Étienne Lenoir