Archeology, Technics
15-May-2024 Wednesday
Who built the pyramids? Professor Yoshimura's experiment
19-May-2023 Friday
How the idols were moved from Easter Island
20-February-2023 Monday
About hardening steel 4
14-January-2023 Saturday
The basics of knife making
28-December-2022 Wednesday
Why are there valleys on the knife. Briefly
06-January-2019 Sunday
Our response to crop circles
02-May-2016 Monday
Ocean One diver robot tested in Marseille
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