yes
selfish people prefer to invent things which doesn't hurt them.
nothing
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Firstly empires are not people and therefore they do not invent things. Secondly inventing things is what people do, whether Roman or not.
Many many things people can invent.
To overcome limitation
he didn't invent he discovered thingshe didn't invent he discovered things
Litreally countless. There are too many things that China has invented, and still many that we don't know. Many things we use today in everyday life were invented by ancient Chinese people.
Engineers are people who invent things and improve them.
Countries don't invent things - people do.
He didn't invent electricity, but a means to use it with things like the light bulb that differed from his closest competitor Tesla. No one invented electricity.
People decide to invent things to improve the world and quality of life. Not everyone is capable of being an inventor. Inventors alike possess skills such as analytic skills, creativity, attention to detail, curiosity and persistence.