4 ms·
My favourite example of this was the digital pregnancy test - which instead of having a test strip that changes color based on a chemical reaction, had the same
by torginus 1y ago
My favourite example of this was the digital pregnancy test - which instead of having a test strip that changes color based on a chemical reaction, had the same test strip surrounded by a photodiode and a LED, which detected the color change and displayed the results on the screen.
People still buy it because it's digital so it must be better.
- montjoy 1y agoAlso, when testing for pregnancy you want to be as “sure” as possible and price is assumed to be an indicator of quality.
- LorenPechtel 1y agoIt very well might be superior. I have dealt with a pregnancy test only once in my life, and that was in acting as an interpreter (me: English, wife: Chinese and some English, couple: Chinese, very little English. Not easy!) Reading the instructions is one thing, but figuring out whether the result was positive was another matter. (Although I suspect it was an edge case--the woman's period showed up soon thereafter, I suspect reality was a very early miscarriage and the result was about at the dividing line.)