this post was submitted on 10 Aug 2024
81 points (100.0% liked)

What is this thing?

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[–] [email protected] 38 points 11 months ago (1 children)

At the beginning of the first world war they plotted all military operations using these giant pins. Later in the conflict ‘map pins’ were developed and these ‘land pins’ became obsolete. Another fascinating example of how the horrors of war pushed technology forwards in civilian applications.

[–] [email protected] 25 points 11 months ago

Imho joke answers should be against the rules of the sub.

[–] [email protected] 23 points 11 months ago (2 children)

Looks like piece of a wheel and an axle from a tractor or a truck or something.

[–] [email protected] 26 points 11 months ago (2 children)

It’s in the centre of France so it’s actually the France axle.

[–] [email protected] 9 points 11 months ago (1 children)

Please don't touch it or you'll make France all wobbly

[–] [email protected] 3 points 11 months ago

The IWW would like you to touch it

[–] [email protected] 7 points 11 months ago (1 children)

…otherwise it’d just be sparkling wheel shaft.

[–] [email protected] 6 points 11 months ago

sparking shaft

I should call him ...

[–] [email protected] 7 points 11 months ago
[–] [email protected] 10 points 11 months ago (1 children)

Marking the exact center of France

[–] [email protected] 6 points 11 months ago* (last edited 11 months ago)

i remember seeing somewhere in paris the prime pin

must be around Notre Dame

edit: yes, it indeed is there : point zéro

Point Zéro des Routes de France (1)

[–] [email protected] 7 points 11 months ago (1 children)

It looks very rough, it could be an unfinished part: a fusion that hasn't received the subsequent machining.
Maybe a flywheel.

[–] [email protected] 5 points 11 months ago (1 children)

I think that's just from many years of rust and wear. I doubt that's the original surface finish

[–] [email protected] 1 points 11 months ago

Could be both

[–] [email protected] 4 points 11 months ago (1 children)

A large ship engine valve? Maybe an unfinished casting? Finished ones here

[–] [email protected] 4 points 11 months ago (1 children)

If that's a valve, the cylinder is probably big enough to climb inside!

[–] [email protected] 2 points 11 months ago

I think it might be a riser or part of a sprue from a larger cast part

[–] [email protected] 3 points 11 months ago

I wouldn't have known it was metal just from the picture. It looks like a stone bird bath.

[–] [email protected] 2 points 11 months ago

What does the top look like?

[–] [email protected] 1 points 11 months ago

It is flat (and round obviously).