A 14 year old made a peddle powered sub from a pig trough and other farm gear to explore Lake Constance – [via] – Link (German) & article.
Related:
Other DIY submarines – Link.
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A 14 year old made a peddle powered sub from a pig trough and other farm gear to explore Lake Constance – [via] – Link (German) & article.
Related:
Other DIY submarines – Link.
ADVERTISEMENT