Correction for the weight of a Light Bulb
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How heavy is 142 monme (匁)?
It's about sixteen times as heavy as a Light Bulb
The weight of a Light Bulb is about 9.10 monme (匁).
(a.k.a. lamp) (for A19-size, 60w, incandescent bulb by Bulbrite; package weight)
A standard, sixty-watt light bulb weighs about 9.10 monme (匁). The tightly-coiled filament inside a bulb of this size would measure about 579mm if uncoiled and stretched out.