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Crossword Puzzle
Crossword Puzzle

Invention: it was all new once

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Invention: it was all new once

Crossword Puzzle

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About this activity

Pivotal inventions from the past.

Created by

P. Duy Minh
P. Duy Minh
Viet Nam

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Invention: it was all new once
 

Crossword Puzzle

Invention: it was all new onceOnline version

Pivotal inventions from the past.

by P. Duy Minh
1

A circular device that enables rolling movement, foundational in transport.

2

Form of energy flowing through circuits powering modern devices.

3

Early long-distance communication method using coded signals over wires.

4

Instrument showing direction by a magnetized needle.

5

Heavier-than-air vehicle that achieves lift for flight.

6

Two-wheeled pedal-powered vehicle.

7

Process that reproduces text and images on paper.

8

Optical instrument that makes distant objects appear closer.

6
2
4
1
3
7
5
8
 
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