So cool! TIL that pencil lead can be a lubricant. | Hacker News

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		gooeyblob 10 months ago \| parent \| context \| favorite \| on: Tracking the international space station with an A... So cool! TIL that pencil lead can be a lubricant.

echoangle 10 months ago [–]

Just for reference, it’s graphite. You can also get graphite powder as lubricant (for locks for example).

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