Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Sound

ciechanow.ski

Post reply on HN
Print view View original

171–180 of 222 posts

Re: Sound

#171

Post by hoseja »

comboy wrote: post #39
WhitneyLand wrote: post #33

Earlier quoted context omitted.

Wow. Such a profound insight could not get published for 15 years because others couldn’t grasp it. Including Lagrange! It’s an uncomfortable reminder of how essential reputation and credibility are in the machinery of science. ”The paper contained the controversial claim that any continuous periodic signal could be represented as the sum of properly chosen sinusoidal waves. Among the reviewers were two of history's…

> Lagrange had insisted that such an approach could not be used to represent signals with corners, i.e., discontinuous slopes, such as in square waves. Isn't that true though? You can only approximate it, right?

Perfectly square waves also can't physically exist, as long as there is a speed limit on the universe.

Re: Sound

#172

Post by hoseja »

I was waiting for a step where pressure waves would be shown in the particle simulation. Probably too hard to make...

Re: Sound

#173

Post by panic »

jackphilson wrote: post #161
PostOnce wrote: post #79

This man needs a genius grant, and this is about the 6th time I've thought this. Any one of these pages would be a feat, an achievement to be proud of, but as a collection, it forms one of the greatest educational resources of its type that I have known. These things can give you more intuition about a subject in 45 minutes than a textbook might be able to in 3 months, because it's interesting and not dry. I wish I h…

Now imagine if all education were like this. What if there was a market that incentivized the creation of top-quality educational content like this? Create it for one topic, usable forever.

A market would ruin it. This type of work is done for love, not for money.

Re: Sound

#174

Post by account42 »

jackphilson wrote: post #161
PostOnce wrote: post #79

This man needs a genius grant, and this is about the 6th time I've thought this. Any one of these pages would be a feat, an achievement to be proud of, but as a collection, it forms one of the greatest educational resources of its type that I have known. These things can give you more intuition about a subject in 45 minutes than a textbook might be able to in 3 months, because it's interesting and not dry. I wish I h…

Now imagine if all education were like this. What if there was a market that incentivized the creation of top-quality educational content like this? Create it for one topic, usable forever.

How do you expect a market to incentivize this?

Re: Sound

#175

Post by zls »

MezzoDelCammin wrote: post #165
armchairhacker wrote: post #63

Earlier quoted context omitted.

The article on mechanical watches had so much depth and such good explanations I thought he was a mechanical watch engineer or enthusiast who happened to also have web design, 3d animation, and writing skills

Who says he isn't? We all have our strange hobbies that we pick (and sometimes discard/change) throughout life

He does :) hope he doesn't mind me sharing from his Patreon:

> I myself don't even own any traditional watches, so the topic was very new to me. Thankfully, it was easy to understand the gist of how mechanical watches work just from watching some YouTube videos and I decided to give the topic a go.

If you subscribe -- you should subscribe!! -- you can read his "making of" posts which are also fascinating. I don't think he's a domain expert in anything he's written about, he just does a ton of research and only produces a few articles per year.

Re: Sound

#176

Post by aasasd »

behnamoh wrote: post #110
PostOnce wrote: post #79

This man needs a genius grant, and this is about the 6th time I've thought this. Any one of these pages would be a feat, an achievement to be proud of, but as a collection, it forms one of the greatest educational resources of its type that I have known. These things can give you more intuition about a subject in 45 minutes than a textbook might be able to in 3 months, because it's interesting and not dry. I wish I h…

> This man needs a genius grant, and this is about the 6th time I've thought this. He says this is his weekend hobby. I really wish he could work on these things full-time. The world needs more people like him.

“Never turn your hobby into a job.”

Re: Sound

#177

Post by xnzakg »

MezzoDelCammin wrote: post #165
armchairhacker wrote: post #63

Earlier quoted context omitted.

The article on mechanical watches had so much depth and such good explanations I thought he was a mechanical watch engineer or enthusiast who happened to also have web design, 3d animation, and writing skills

Who says he isn't? We all have our strange hobbies that we pick (and sometimes discard/change) throughout life

He has an commentary article on Patreon where he says he doesn't even own any traditional watches, and had to buy a movement to take apart and understand

Re: Sound

#178

Post by singingfish »

duderific wrote: post #98

Incredible work as always, thanks Bartosz. Interesting side note - using the "basic" frequency/amplitude slider section, you can tell if you have any hearing loss in a certain ear at a certain frequency, as well as high frequencies in general. As an ex-musician, I have some hearing loss caused by playing and being around extremely loud music. Between 6KHz and 7KHz, I felt the sound shift towards my right hear, indica…

I'm not convinced it's possible to be an ex-musician

Re: Sound

#179

Post by vollcheck »

it would be lovely to have some personal note from Bartosz on how is he working on these articles - every single one looks like a masterpiece and at this point I'm wondering if he does not have issues with procrastination or lack of motivation

Re: Sound

#180

Post by zasdffaa »

alberth wrote: post #149
PostOnce wrote: post #79

This man needs a genius grant, and this is about the 6th time I've thought this. Any one of these pages would be a feat, an achievement to be proud of, but as a collection, it forms one of the greatest educational resources of its type that I have known. These things can give you more intuition about a subject in 45 minutes than a textbook might be able to in 3 months, because it's interesting and not dry. I wish I h…

For the HN crowd who like to roll with JS turned off, you’re missing out on great interactive illustrations.

Useful tip, thanks. I never enable JS on my machine, starting up a VM as I type.

Hmm, is it me or does the 440Hz sound seem higher pitched than it should? I'm not a musician at all but the 330Hz sounds closer to what I'd expect.

Post reply on HN