it started with the Hittorf bloke observing what happened with electodes, and went from there.Physicist Johann Hittorf observed tubes with energy rays extending from a negative electrode. William Crookes investigated the effects of energy discharges on rare gases. Heinrich Hertz began experimenting and demonstrated that cathode rays could penetrate very thin metal foil (such as aluminium). In 1887, Nikola Tesla began to investigate X-rays and produced the bremsstrahlung process. In 1895, Wilhelm Röntgen began observing and further documenting X-rays while experimenting with vacuum tubes.
most inventions are made by observing a phenomena and investigating further
"To waste, to destroy, our natural resources, to skin and exhaust the land instead of using it so as to increase its usefulness, will result in undermining in the days of our children the very prosperity which we ought by rights to hand down to them."~ Theodore Roosevelt (Message to Congress, Dec. 3, 1907)
A discovery involves something that exists or could exist outside of the actions of man. An invention involves the creation of something which necessitates the actions of man.
Fire existed before and outside of the actions of man, so it can't be "an invention".
BTW what is this thread about?
"I do not claim that every incident in the history of empire can be explained in directly economic terms. Economic interests are filtered through a political process, policies are implemented by a complex state apparatus, and the whole system generates its own momentum."
Maybe women learned how to create fire, and not "man"? After all, they tended the hearth.
"A nation can survive its fools, and even the ambitious. But it cannot survive treason from within. An enemy at the gates is less formidable, for he is known and carries his banner openly. But the traitor moves amongst those within the gate freely, his sly whispers rustling through all the alleys, heard in the very halls of government itself. For the traitor appears not a traitor; he speaks in accents familiar to his victims, and he wears their face and their arguments, he appeals to the baseness that lies deep in the hearts of all men. He rots the soul of a nation, he works secretly and unknown in the night to undermine the pillars of the city, he infects the body politic so that it can no longer resist. A murder is less to fear"
Cicero Marcus Tullius
I don't think you can invent something that comes from nature, i.e., fire, wind, rain, Earth, certain naturally occuring chemical elements such as iron or zinc. That said, IMO, fire was discovered. Now, you can invent other ways to produce fire, such as a blow torch, but fire itself was a discovery.
Naturally created fire (lightning strike, sunlight focused through sap, volcanic eruptions etc) was discovered. Human-created fire was invented.
I would suspect we were using the fire we discovered - and inventing new ways to keep it burning longer - for a long time before we invented a way to make it ourselves.
The truth may be out there, but lies are in your head. ~Terry Pratchett