Question

2. Think about any object or mechanical device. Name it and write in about
10 sentences how it works.​

Answer 1

Answer:

1.The abacus, also called a counting frame, is a calculating tool that has been in use since ancient times and is still in use today.

2.It was used in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the written Arabic numeral system.

3.The abacus essentially consists of a number of rows of movable beads or other objects, which represent digits.

4.Although today calculators and computers are usually used instead of abacuses, abacuses still remain in common use in some countries. Merchants, traders and clerks in some parts of Eastern Europe, Russia, China and Africa use abacuses, and they are still used to teach arithmetic to children

5.Some people who are unable to use a calculator because of visual impairment may use an abacus.

6.The binary abacus is used to explain how computers manipulate numbers.

Answer 2

Answer:

Gaint MECH ROBOTS,HUMANOID ROBOTS WITH ARTIFICIAL INTELEGENCE,SUPER COMPUTERS,DRONES,HIGH TECH REMOTE CONTROL CARS AND HELICOPTERS

Explanation:

I DON'T KNOW HOW THESE MACHINES WORK.

BUT PLEASE MARK ME AS BRAINLIST