Let's start with something that certainly nobody expected - Fire and Wheel.
The discovery how to ignite, keep and control fire is dated back 75 thousand years ago. Prehistoric people used it to cook their meals and create tools. The first methods to ignite the fire were bow drill also called fire drill, hand drill and fire plough - these are methods based on friction. Also the most primal method was striking a stone onto another stone - this is called percussion method.
This discovery is probably the most important of all. Becouse of this people could craft more advansed tool or prepare better food which contributed in human evolution. This is also the first thing that distinguish human from animals.
Now lets look at the Wheel. It was invented in Mesopotamia about 3500 BCE and used to build first wagons (4 wheels, 2 axles) - used for transport and a potter's wheel - first machine based on rotary motion which made the production of dishes way easier and contributed in creation of the first profession - a potter. Later people invented more machinse based on wheel such as lathe, reel, pulley, rotary quern and gear. Wheel unlike fire mayby not help in human evolution in a biolgical terms but surly accerelated the evolution in technology.
Moon formation theory phrases:
To break sth off - to sepatate a part of sth from the biggest part
Example: Big iceberg broke off the ice shelf at the north pole.
To gaze up - to stare at sth above
Example: Many people love to gaze up at the stars.
Debris - fragments, remains of sth
Example: The Moon is probably made of the debris of the Earth.
Technically, fire is not an invention, is it? It had been there, in its natural forms, long before humans learned how to make it. Even now, it is still one of the classic four elements (fire, water, air and earth) and is considered uncontrollable to a large extent.
OdpowiedzUsuńIt's interesting that people often see something magical in fire, which might be the legacy of prehistoric times.