7 Oldest Technologies Scientists Still Can’t Explain

7 Oldest Technologies Scientists Still Can’t Explain
Thousands of years ago great minds managed to create incredible technologies that were way ahead of their time, like a fire that couldn’t be extinguished by water, an unbreakable medieval sword, and even the ancient computer from 200 B.C.E.! You’d be surprised to find out what crazy inventions existed back then that science still can’t explain today.
So
what are these ancient technologies/inventions that science still can't explain ?
And do you think that computers are a modern invention? What about sound chambers that can amplify what someone says by 100 times or more, or calendars that can be recalibrated from one year to the next? Nanotechnology, cataract surgery, steel that is flexible yet can cut through a handkerchief in midair, or a flying machine equipped with a manual for traveling long distances?