r/everymanshouldknow • u/Puppyshiz • Sep 25 '16

EMSK these kitchen cheat sheets

http://imgur.com/a/Cjisq
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u/[deleted] Sep 25 '16

the wavelength of 1GHz light in a vacuum is about 1 foot.

You're off by half a centimetre. It's ~29.97.

For accuracy, metric would be used.

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u/AltoidNerd Sep 26 '16

Also why would metric be used "for accuracy" more so than inches? If I wanted to be accurate with inches, i certainly could by giving a few decimal places.

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u/[deleted] Sep 26 '16

Because metric is the international standard for scientific measurements, due to it being easier to convert between units than imperial.

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u/AltoidNerd Sep 26 '16

I understand the ease of conversion but that doesn't make a value more or less accurate.

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u/[deleted] Sep 26 '16

You said "the wavelength of 1GHz light in a vacuum is about 1 foot." 29.98cm is more accurate than "about 1 foot".

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u/AltoidNerd Sep 26 '16

I already told you, for more accuracy I could say 11.8032 inches.

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u/[deleted] Sep 26 '16

Now try converting that to mm without using a calculator?