Recent comments in /f/explainlikeimfive

Canadian__Ninja t1_iuab5yb wrote

It's cheaper to make it without the text, both from a tech standpoint in that it's more work and because you don't need to understand language x to be able to use it. I don't have experience with them but I'd imagine a French woman would be able to seamlessly use a pregnancy test made in Czechia for instance.

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Flair_Helper t1_iuab1o8 wrote

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Unrealized_Fucks t1_iuaajmz wrote

There was a big panic about freemasons in the early 1800s, really interesting stuff. A lot of people suspected something sinister about them already and after a failed high-level cover up of a murder involving over a dozen freemasons happened it snowballed into what became the first third party in the United States, the Anti-Masonic party. https://en.m.wikipedia.org/wiki/William_Morgan_(anti-Mason)

Feel free to ask questions. I've dug pretty deep.

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corey_m_snow t1_iuaa8d1 wrote

It depends on the test, but the basic principle is that you have a piece of paper that absorbs liquid and "wicks" it through the fibers. At one end that paper is exposed to a stream of urine that is absorbed into the fibers.

At the other end of the paper is a diagnostic strip that will change color or darken if certain chemicals are present and will not change if they are not- that's looking for the presence of specific substances that are only present when someone is pregnant. There's usually a second strip that's a "control" and will change color regardless of the presence of any chemicals.

So when you use the test, the liquid is absorbed up the paper, wets the two strips, one will turn color letting you know that the test is working and that enough liquid got into the tester that the result is valid, and if the other one changes it's a positive result.

All that said, some testers do have digital readouts. I'm not familiar with how those work, but they cost a bit more, from my understanding.

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footyDude t1_iua9wwa wrote

One reason would be so they can easily manufacture and sell the same test in multiple international markets without having to do any localisation.

That said, some do come with written-language results (at least in the UK a lot of the 'digital' ones will show 'pregnant' as a result).

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