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My daughter was asking me about moles recently. Glad to see NIST has something I can point her to.
by killjoywashere 8y ago
My daughter was asking me about moles recently. Glad to see NIST has something I can point her to.
- mrec 8y agoSo does XKCD: https://what-if.xkcd.com/4/ https://what-if.xkcd.com/4/