Recent content by Averagesupernova

Have you actually read this entire thread?

Of course complex sounds contain multiples. What's the point?

This doesn't need to go very deep to explain that the phase relationship between two signals of different frequencies will never cause cancellation no matter how hard you try. - Here's a little advice for you: When something does not make sense to you and contradicts mainstream accepted science...

It opposes a changing current. Inductors are happy continuing to pass a non-changing current. Try to increase it or decrease it and it does what it has to in order to counter this.

The simple answer is you are misapplying what you've been taught.

The development of many things we have today was driven by the fact that what existed prior was not cost effective for the general public. - If Union Pacific wants to look into this I'm betting they have better qualifications to justify that move than you or I.

As to the original question about 5 mA, in the US a GFCI outlet is protected at 5mA. So an imbalance of current between hot and neutral at 5mA or greater will trip the device. I'd like to think that it is perfectly safe but as other posters have said, depends on where the current is flowing. A...

Some day I would like to hear every story behind all of your "don't ask me how I know..." statements. - I recall as a youngster I tried something that was rather stupid. Seemingly harmless at the time. I had a 200 in 1 radio shack kit. I was fiddling around with one of the audio oscillator...

That is a countersunk hole. An oversized bit can work if you are careful and not too fussy. Google countersinking tools and you should come up with several solutions.

There are plenty of instances on PF where someone posts that they want to achieve X by doing Y. Often times Y seems clunky, overly complicated, expensive, etc. Then the majority of members try to influence the OP to achieve their goals by doing Y a completely different way and it is generally...

I can't be sure what happened in that video but I have to assume the unit was already under vacuum and he let air into it. At least one of the guys in the video did not appear happy that it happened.

No I will not. I am hot and HVAC tech or engineer. I know enough to realize there is a lot more I do not know. At this point the person you hire to do this job SHOULD be able to answer your questions. If not, they are not qualified enough to do the job.

The short answer is yes. - The long answer is that since you are asking that question, it tells me you intend to do it yourself. Otherwise you would contact someone who is qualified to do such work, if they exist in your part of the world, which I do not know where that is. If you have to ask...

I am assuming you would take on this job of evacuating the system and refilling?

Then you are guaranteed the system will fail.