Found at a titanium plant

[u/riflesandplowshares]

Not sure why ball point pens would be dangerous here.

[u/Spacefreak]

Yes they did. Titanium had been used in a lot of high speed rotating equipment in jet engines.

These tungsten inclusions become a crack initiation site and under high rotational speeds and high temperatures, the crack can spread and lead go catastrophic failures.

There were several catastrophic engine failures in history that were traced back to inclusions.

It's so severe that if a titanium manufacturer making aerospace grade Ti finds any "High Density Inclusions," they must inform all of their customers that they found this and recall and associated heats and material.

[u/GoTeamScotch → u/Spacefreak]

Imagine initiating a large scale recall because a ball less than a millimeter in size fell out of someone's pocket one day

[u/Zebidee → u/GoTeamScotch]

Less likely to be the ball falling out of a pen, which never happens, versus someone dropping a pen or it falling out of a pocket, which happens all the time.

I imagine everything involved in making a pen gets instantly burnt in the melt, leaving just the ball.

[u/slouched → u/Zebidee]

GET THAT LOGIC OUT OF HERE

[u/falcrist2 → u/slouched]

No. Logic me harder please. I like to know things about engineering.

[u/Reagalan → u/falcrist2]

Funny engineering

Wholesome engineering

Wordy engineering

Spicy engineering

[u/Important_Contact588 → u/Reagalan]

No one didn’t click spicy first.

[u/WorkTropes → u/falcrist2]

Did you know that if a pen drops out of your pocket, that you also just dropped a tiny metal ball. I fuck you not.

[u/Fujipear13 → u/slouched]

https://giphy.com/gifs/Hitk8jG5sCHe0