Collaborate Disseminate
If you want to measure resistance and you know Ohm’s law, it seems like you have an easy answer, right? Feed a known current through the thing you want to measure and read the voltage required. A little math, and that’s it. Or is it? If you are measuring reasonably …read more
Continue reading Circuit VR: Resistance Measurement with Four Wires
We like to pretend that wires are perfect all the time. For the most part that’s acceptable, but sometimes you really do care about those tiny fractional ohm quantities. Unfortunately though, most meters won’t read very low values. There are tricks you can use to achieve that aim, such as …read more
I made a #Resistance Twitter account to see if it was easy to join the ecosystem and gain followers. It was, indeed, very easy. Continue reading I Tweeted Like a Member of the #Resistance on Mueller Report Day
Some aspects of humanity affect all of us at some point in our lives. Whether it’s getting caught in the rain without an umbrella, getting a flat tire on the way to work, or upgrading a Linux package which somehow breaks the entire installation, some experiences are truly universal. Among these is pulling a few squares of toilet paper off the roll, only to have the entire roll unravel with an overly aggressive pull. It’s possible to employ a little technology so that none of us have to go through this hassle again, though.
[William Holden] and [Eric Strebel] have …read more
One of the first things anyone with an interest in electronics learns is the resistor colour code. The colour of the first band reveals the first figure, the second the subsequent figure, and the third a power-of-ten multiplier. At first you learn these colours, but eventually you just recognise the values through familiarity. You don’t have to think about multipliers when you see orange-orange-red, you just know that it’s a 3K3 resistor.
[Plusea] has come up with an entertaining interface for an ohmmeter, which instead of displaying the resistance on an LCD or a meter shows it as the colours …read more
In just 11 days, bacteria developed resistance to 1000 times the initial amount of antibiotics. Continue reading It’s Surprisingly Easy for Mutant Bacteria to Develop Antibiotic Resistance