HapyMetal

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HMS Calypso

HapyMetal 13 comments

The Young Experiment

HapyMetal 44 comments

Towers

HapyMetal 13 comments

Germany is famous for...

HapyMetal 26 comments

Common material testing methodes

HapyMetal 11 comments

New invention!!!

HapyMetal 11 comments

Chap'thil class

HapyMetal 4 comments

Serious disasters 7 USS-Thresher

HapyMetal 19 comments

Microstructure of Iron-alloys part-1

HapyMetal 19 comments

The "Rutherford experiment" Part-1

HapyMetal 8 comments

Mixed solids instruction

HapyMetal 11 comments

Deep-Space Station

HapyMetal 1119 comments