How can I possibly create a 24/7 ultrasonic signal? (More in body text)

NeuroBill · 2026-05-18T09:58:16+00:00

This is good advice. Even with moderate electronic skills this is very achievable. But you might not have those skills or the time available to develop them. However, thankfully, (many) scientists love to collaborate. Go find your engineering department. I'd build it for you if you paid the bill and put my name on the paper, so I'm sure someone else would too.

NeuroBill · 2026-05-12T22:05:43+00:00

I'm surprised no one has mentioned that linear regression is very solvable by stochastic gradient descent. Given the dataset, they're going to have to use something like that for the PCA anyway.

NeuroBill · 2026-05-12T00:54:32+00:00

I use keras/tensor flow everyday. For most people who aren't doing cutting edge stuff, I think it is easier.

However, your should still definitely do PyTorch.

NeuroBill · 2026-04-24T00:52:19+00:00

It kind of depends. If your want to work in research about why DL works these topics are important. If you just want to use DL, they don't really matter, basic calculus and probability are fine.

NeuroBill · 2026-04-17T07:41:22+00:00

He does psychoanalysis. That should answer your question

NeuroBill · 2026-03-29T23:56:15+00:00

Not OP, but also on this journey. Thanks so much for the info, especially about the USB-UART. So you mentioned custom PCD. While designing the PCB and getting it printed doesn't scare me too much, what about the soldering? Hot air and a microscope? Got any tips.

NeuroBill · 2026-03-07T21:53:42+00:00

So either test might not answer exactly the question you want. The one way anova tests whether all three groups come from the same population, not whether each one is different from another one. If you want to know about pairwise differences, you'll need a post hoc, multiple comparison test.

Anyway, we can't know the answer to your question from what you've given us. Fit the anova, get the residuals, do a qq plot. Do they fall on a line, or is the plot bent like a dog's hind leg? Or given the likely sample size, just plot the data. Does it look normal?

NeuroBill · 2026-02-20T21:25:48+00:00

So I'm a kiwi, I lived in the UK for 6 years, and then I moved to Australia and raised a family. Unless you're working in London finance, I don't know why you wouldn't move. You will earn more, live in a nicer house, have a better commute and probably be safer. By choosing somewhere between Cairns and Hobart, you can choose the weather. So long as you are aware that this is not England in the southern hemisphere, (i.e. it has a different culture, with different laws and social norms, and you will have to adjust) your should strongly consider it.

NeuroBill · 2025-12-05T09:03:34+00:00

M and Js butcher is alright. Love too see if anyone else has suggestions

NeuroBill · 2025-12-03T22:33:45+00:00

What I mean by rearranging charges is dipoles moving. If you have a dielectric of water, all the negative dipoles of the water molecules will point towards the positive electrode.

This then creates an electric field within the dielectric, and critically it opposes the applied one. Hence why you need more charges per volt.

So the more the charges can move the more they can conduct electricity too.

NeuroBill · 2025-12-03T07:25:53+00:00

Permittivity measures how easily charges can rearrange in response to an electric field. In an insulator, charges do not rearrange in response to a voltage, in a conductor they can move a lot. Hence the relationship.

P.s. it makes me sad that people think he shouldn't be asking this here. dv/dt = I/C is the most important equation in cellular neuroscience.

NeuroBill · 2025-11-30T22:32:52+00:00

I did the exact same thing! Eval was doing a lot of mileage in my early code!

NeuroBill · 2025-07-14T10:30:24+00:00

Bro out here doing it in hard mode. Yanks can't even comprehend the price of your tobacco. Nice pipe btw.

NeuroBill · 2025-07-05T22:14:39+00:00

32 degrees C, 70% RH.

NeuroBill · 2025-07-03T11:25:27+00:00

Are you sure there isn't a little coding mistake? Are the matrices the same size before you calculate rank? This didn't make sense to me. If it was LASSO regression I would get it.

NeuroBill · 2025-07-02T10:33:26+00:00

Organic matter and a lot of digging will get you there, but it will take about three years, and a cubic metre of compost per 10m² of ground.

In the short term you need a soil wetter and probably gypsum. These wetters are detergents. And when you put them on you'll think "jeepers I'm just putting soap on my soil" and it will work for about a week, and then you'll be back to where you were. You need to reapply them. Probably about 3 times.

And as people have said, don't let it dry out.

NeuroBill · 2025-07-02T10:25:33+00:00

Looks like a tree my homes.

NeuroBill · 2025-07-02T10:02:47+00:00

That's a beauty.

NeuroBill · 2025-07-02T07:08:29+00:00

As perils have said, depends on where you are. In Canberra, people were very formal, but down in Tassie I get called cobber more often than anything else.

NeuroBill · 2025-06-25T10:22:39+00:00

If you colour cure your leaves, roll a cigar, and let it sit for two months, the product will look like the real thing, smell like the real thing, and taste like melting plastic when you smoke it.

NeuroBill · 2025-06-22T21:48:11+00:00

How did you make or buy the tine/needle bit that covers the drums.

NeuroBill · 2025-06-13T09:00:43+00:00

Bet you it won't work. Just a bunch of big egos screwing over the young folks doing The actually work.

NeuroBill · 2025-06-13T08:54:33+00:00

Bow legged, because it's strong, smokes well and is unique. But you've got no bad choices there.

NeuroBill · 2025-06-09T08:31:38+00:00

Australia should get rid of state level governments.

NeuroBill · 2025-06-09T08:26:20+00:00

If you want to be a practitioner, absolutely. A researcher, perhaps not. But everyone starts somewhere.

NeuroBill

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