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3 questions about Science
Question 1Which mathematician is associated with the constant e, approximately equal to 2.718?See the answer +
The answer
Euler
Leonhard Euler, one of the most prolific mathematicians in history, introduced and popularized several mathematical notations still in use today, such as the exponential function and the notion of a mathematical function. The number e, often called Euler's number, is the base…
Read the full explanationQuestion 2What is the fundamental electronic component for controlling the flow of electricity?See the answer +
The answer
Transistor
The transistor, invented in 1947 by Bardeen, Brattain, and Shockley, is often considered one of the most important inventions of the 20th century. Before the advent of the transistor, electronic devices used bulky, less reliable, and more energy-consuming vacuum tubes. The transistor…
Read the full explanationQuestion 3What device converts mechanical energy into electrical energy?See the answer +
The answer
Generator
Thomas Edison and Nikola Tesla were central figures in the development and promotion of generated electricity. Edison, a staunch advocate of direct current (DC), contributed to the creation of the first power stations, laying the groundwork for modern electricity use. Tesla, on…
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- What method is widely used to produce materials with specific properties, such as stainless steel?See the answer
- Which ancient Greek doctor is traditionally nicknamed “the father of medicine”?See the answer