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solotronics
on June 4, 2019
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Ask HN: I need ideas to impress fifth graders with...
Maybe I'm old school but I think it would be neat to bring an old rotary phone and pull out your cellphone and explain how modern phones would be magic to someone 50 years ago!
edit: this is probably boring and would not be age appropriate
dehrmann
on June 4, 2019
[–]
The way area codes of major cities (e.g. 212) are compressed is really clever, but sadly, I don't see it impressing fifth graders.
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edit: this is probably boring and would not be age appropriate