-
40,000 BCE
stone tools
A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. -
5000 BCE
wheel
In its primitive form, a wheel is a circular block of a hard and durable material at whose center has been bored a hole through which is placed an axle bearing about which the wheel rotates when torque is applied to the wheel about its axis. -
100
paper
Paper is a thin sheet material produced by mechanically and/or chemically processing cellulose fibres derived from wood, rags, grasses -
300
water pump
A water pump is any device for moving water. -
microscope
A microscope is an instrument used to see objects that are too small to be seen by the naked eye. -
galileo telescope
The basic tool that Galileo used was a crude refracting telescope -
volta
Alessandro Giuseppe Antonio Anastasio Volta was an Italian physicist, chemist, and pioneer of electricity and power[2][3][4] who is credited as the inventor of the electric battery and the discoverer of methane. -
steam locomotive
A steam locomotive is a type of railway locomotive that produces its pulling power through a steam engine. -
steambout
A steamboat is a boat that is propelled primarily by steam power, typically driving propellers or paddlewheels. -
cement
A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. -
electric generator
In electricity generation, a generator[1] is a device that converts motive power (mechanical energy) into electrical power for use in an external circuit. -
morse telegraph
Samuel Finley Breese Morse (April 27, 1791 – April 2, 1872) was an American inventor and painter. -
telephone
The invention of the telephone was the culmination of work done by many individuals, and led to an array of lawsuits relating to the patent claims of several individuals and numerous companies. -
radio
Radio broadcasting is transmission of audio (sometimes with related metadata) by radio waves intended to reach a wide audience. -
x-ray
An X-ray, or X-radiation, is a penetrating form of high-energy electromagnetic radiation
