|Image: Marsyas CC BY-SA 3.0|
Making ice in the desert? 2400 years ago the Persians were making ice in the desert to keep cool on hot summer days.
Ancient robots lasers and computers? Not quite as we know them but still pretty amazing.
Antibiotic beer from 1500 years ago. I wonder how effective it was.
"Give me a lever long enough and fulcrum on which to place it and I shall move the world." - Archimedes