NTC Measurements (Pt. 1)

When dealing with low-cost, home made termometers, the choice often fall on the NTCs. These sensors are resistors which are varying their resistance in function of the temperature, with a negative trend: Negative Temperature Coefficient is their name, also known as Thermistor. That means higher the temperature, lower the resistance: We observe that this cheap … Leggi tutto NTC Measurements (Pt. 1)

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The anti-loud siren

What happens if some one try to piss off people and make them scream, and you can't calm down them? What happens if you are in a crowded environment where people start talking when they shouldn't? Or what happens if you are one of those people who talk constantly loud out, but wants to improve … Leggi tutto The anti-loud siren