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Why is there empty space before zero on a ruler?
Your guesses 😜
Ratio of positive and negative votes: 2/0
- Well, there are rulers with the minimum distance from the scale. They just didn’t crop this one.Like this post, increate it rating
- This is a stop - often, when you need to measure a gap, it is convenient to brace the ruler and start measuring from the reference point, zero, rather than from the edge.Rulers whose measuring scale starts from the edge are generally convenient to use as depth gauges.Let me ask the question differently: why do some tape measures have the marking 25 °C?Like this post, increate it rating
TrashNevalyashkaThis is a stop - often, when you need to measure a gap, it is convenient to brace the ruler and...Well, the 25°C part is clear – expansion at high temperatures and contraction at low ones, but I want to argue about this ruler – it’s a children’s ruler made of soft wood, the corner often deforms (gets chewed, bends, etc.), which is why this allowance is given. In technical (carpentry, turning, etc.) steel rulers there is no such “allowance”; they can be pressed against a part of the construction and used for measurements. By the way, there is no such allowance in tailor’s wooden meters either, because their ends are capped with metal.Like this post, increate it rating
SoloCatWell, the 25°C part is clear – expansion at high temperatures and contraction at low ones, but I...The cutter's ruler and the logarithmic one do not agree with youI was puzzling over this question – it's all simple: it's a technological allowance. That is, the blank is made with a +/- tolerance by eye, but to make the ruler show accurately, they make a setback from the edge.Edge wear is possible, but that's not the primary causeLike this post, increate it rating- TrashNevalyashkaThis is a stop - often, when you need to measure a gap, it is convenient to brace the ruler and...The question is even more complicated than mine))Like this post, increate it rating
- TrashNevalyashkaThe cutter's ruler and the logarithmic one do not agree with youWear and tear is one of the causesLike this post, increate it rating
- TrashNevalyashkaThe cutter's ruler and the logarithmic one do not agree with youPlease, keep your answer as close to the truth as possible, but I don’t understand why you included the rulers with an indentation, while saying that there isn’t one.Like this post, increate it rating
- Olga-NevskayaPlease, keep your answer as close to the truth as possible, but I don’t understand why you...I didn’t quite understand what exactlyAs I wrote above, there are both kinds. Some are used without an edge, others with one. I gave the tailor’s ruler as an example, and as a counterexample I cited the cutter’s ruler. In general, it all depends on the purpose of use and the manufacturing technology....you are writing that there isn’t.By the way, there is a question about the accuracy of metal rulers: I didn’t mention 25 degrees for nothing — this is the ambient temperature (and, correspondingly, of the measuring tape) at which this tape measure shows valid values.Like this post, increate it rating
- TrashNevalyashkaI didn’t quite understand what exactlyAs I wrote above, there are both kinds. Some are used...Yes, I took a look at the photos and saw that the rulers have an offset. Also, when typing quickly on a phone, the wrong words sometimes get inserted too)It’s just that even in production, it’s difficult to make it so that, with a ruler without an offset, the change starts exactly from zero.Like this post, increate it rating
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