Historic Nonsense

I hope some of these make you as angry as they make me.

Almost none of the sources are scientific journals or papers; It's all kept pretty light.

Know more stuff I can add here? Don't hesitate to contact me!

Imperial Units

Doesn't need an introduction.

50-Ohm RF Impedance

Someone chose it because it stands between the 30 Ohm and 77 Ohm mark (calculated bounds for maximizing power and minimising loss respectively). At least it looks pretty.

Ziegler-Nichols PID Tuning

There are much better tuning methods available now-a-days but its still widely used in the industry. Its agressive, it overshoots and its overall not very robust.

Today, some tuning methods are even defined per field, such as Lambda or Skogestad's rules used in chemical engineering.

Source 1 (industrialmonitordirect.com)

Source 2 (controleng.com)

Conventional Current

Conventional current exists because Benjamin Franklin assumed that electric charge moved in the opposite direction than it actually does. Emphasis on assumed.

It was hard to find a source that didn't have AI generated images.

50/60 Hz Mains

They each have their advantages and disadvantages, but there's no fundamental reason as to why they were chosen. It was all due to situational factors.

AWG Wire Gauge

All sources I came across just... Describe AWG? It seems like people really don't want to ditch it. But, look. AWG is still imperial, was defined on how many die passes it took to trim the cable down and now that we have the metric system and diameter-based wire sizes we're not going to use it when it is objectively better because it lets us precisely define the measurements of our cable in a universal format???

28-day Concrete Test

28 days is not applicable for all mixes of concrete, yet it is treated as such in most standards.

Nominal Pipe Size

NPS and DN are not measurements. They're labels. God damn labels. DN is supposed to be a metric equivalent and its STILL a label.

MIL-HDBK-217

The handbook has been obsolete for a while now, they just haven't found or made something suitable to replace it with. Plus, it has been used in so many products that some manufacturers just keep on using it.