presentacion oral 2º eso

1. Inventions and discoveries

2. What is an invention?
A new, useful, process, machine, improvement , etc. That did not exist
previously and that is recognized as the product of some unique
intuation or genious.

3. What are te differences between inventions
and dicoveries?
 Discovery is known as the act of detecting something
that already preexists and has been around over a long
period of time. Invention is using objects, ideas or
theories that are already preexisting in order to create a
new object.

4. Examples of inventions and discoveries:
 Discovery of neptune: Jhon Couch – 1843
 Invention of radio: Nikola Telsa – 1891
 First flying machine: Jean-Francois Pilatre de
Rozier – 1783
 Light bulb: Humphry davy – 1802
 Invention of the telephone: Alexander Graham
Bell - 1876