Professeur Tournesol cobalt unknown alien device

Professeur Tournesol found this thing in his pocket at the end of the 'Flight 714 to Sydney' Tintin comic. Tournesol had no idea what the function of the device could have been. He described it as a metal wire ended in an hemispherical head, and said the lab analysis shown it was made of pure state cobalt, alloyed with a ferronickel composite. "As there is no pure cobalt in the Earth, it must have an extraterrestrial origin", he concludes, live on TV. It seems at the time the Tintin comic was written, a process for refining pure cobalt was not yet developed.

If printing in FDM, the STL file is half of the part, you must print two copies, one mirrored respect to the other. This is to avoid supports. Then glue it, and paint it if you like. I was going to paint it in silver color, but my brother suggested to paint in bronze.

I should have painted the oranges in blue, don't you think? 😊

Made in Freecad, sources included.