History of Inventions Flashcards
Sun starts producing energy
4-5 billion yrs ago
Humans make the first tools from stone, wood, antlers, and bones
10 million yrs ago
What period in time does the Stone Age fall into?
The Stone Age spanned from about 3.4 million years ago to about 6000 B.C. and was marked by widespread use of stone tools, the earliest form of manmade technology.
When was fire first discovered?
Previous estimates put us back 1 - 2 million yrs…
however,
Scientists have found evidence of controlled fire use inside an ancient cave in Israel that was home to several lineages of prehistoric hominins, the predecessors of modern humans. Artifacts discovered at the site, located in the Nahal Me’arot Nature Reserve in northern Israel, suggest that fire use became routine among hominins around 350,000 years ago.
Why was the ‘manipulation’ and ‘control’ of fire so transformative?
Scientists believe that without being able to consume cooked food, human brains would have never grown in size and complexity.
“Many anthropologists think the key breakthrough was adding meat to the diet.” Humans get about 30 percent more energy from cooked food than raw food, an important distinction that allowed early humans to fuel a growing brain.
Humans invent the wheel
3500 BC
Iron Age begins: iron is widely used for making tools and weapons in many parts of the world.
1000 BC
Hero of Alexandria, a Greek scientist, pioneers steam power.
62 CE
First paper is made in _________.
China
105 CE
Windmills are invented in ____________.
Middle East
Around 600 CE
The _______ invent gunpowder and fireworks.
700 - 900 CE
