Devlin_Donnelly | 10 years ago | on: How an Army of Ocean Farmers Are Starting an Economic Revolution
Devlin_Donnelly's comments
Devlin_Donnelly | 12 years ago | on: Try Bitcoin
You don't have that much - please visit the Buy/Sell page to add more funds to your account..
Any Suggestions?
Devlin_Donnelly | 13 years ago | on: How to pay online without a credit card?
Devlin_Donnelly | 13 years ago | on: Focusing On Prevention And Neuroscience, President Ends Reagan’s War On Drugs
http://www.whitehouse.gov/blog/2013/04/24/drug-policy-reform...
Devlin_Donnelly | 13 years ago | on: Ask HN: What search engines do you use besides Google? Why?
Devlin_Donnelly | 13 years ago | on: Ask HN: If you could master one technology this year, what would it be?
Devlin_Donnelly | 13 years ago | on: Ask HN: What is the coolest JS library out there?
Devlin_Donnelly | 13 years ago | on: Ask HN: Your stack of choice for web development?
Devlin_Donnelly | 13 years ago | on: Apps? No root? Your device serves others, warns Berners-Lee
One criticism people have of this approach to application development is that web apps aren't as efficient as native apps.
This pro/con discussion of web vs native apps reminds me of the C programming language, why it was created and what for.
The C Programming language was designed to be a portable language, meaning that it can be compiled on virtually any platform, any operating system. Yet C was also designed to constitute the minimum abstraction away from a given platforms native assembly language.
Thus a program written in C can be compiled on almost any machine, and run as efficiently or nearly as efficiently on that machine as a program written in that machine's native assembly language.
So perhaps we could use something like the C programming language for the web. A technology which allows us as developers to write our applications once in a portable open format, without needing to sacrifice in terms of performance.
Any thoughts?
Devlin_Donnelly | 13 years ago | on: Show HN: Teoria.js - Music theory for JavaScript
Of course, as you say, our cultural biases/values play a role in how we create music and what music we appreciate with how much consonance/dissonance.
But the fact that certain musical intervals sound more harmonious or more dissonant seems to be a result of the human ear's response to the physical nature of the frequency of the sound waves, and thus a response that is shared across cultures.
> The ratios for a tritone, major 7th, etc. are more complex
Yeah, I guess that's true that the ratios between those 12 frequencies aren't the 12 simplest, but they can be derived by following the simplest non-octave ratio - 3:2 or a perfect fifth - starting from a root note and moving up one perfect fifth 12 times.
Thus if you start from C: C - G - D - A - E - B - F# - C# - G# - D# - A#/Bb - F and that's all 12 notes. I guess I thought that because of that pattern those were the twelve simplest ratios. Thanks for the heads up.
And yes this principle applies to the Just tempered Scale not the even-tempered scale.
Devlin_Donnelly | 13 years ago | on: Show HN: Teoria.js - Music theory for JavaScript
So for example the simplest ratio 2:1 corresponds to an octave interval. Notes which are an octave apart sound so similar that we describe them with same letter. So concert A is 440Hz and the "A" note one octave higher is 880Hz.
The next simplest ratio, 3:2 corresponds to the interval known as a perfect fifth. So given the example of concert A at 440Hz again, one perfect fifth above concert A is the note E which has a frequency of 660Hz as (440 * 3) / 2 = 660.
We find the simplest ratios of frequency intervals present in music from cultures the world over. The traditional classical Western twelve-note scale consists of the 12 simplest frequency ratios. In some Eastern music we hear a pentatonic or five note scale, which consists of the five simplest frequency ratios.
So this aspect of music we can attribute to innate psycho-acoustics or even physics rather than cultural bias.
Devlin_Donnelly | 13 years ago | on: Proposition HN: I will pay $8000 for you to build your side-project/MVP
Devlin_Donnelly | 13 years ago | on: Hacker news in your terminal
Devlin_Donnelly | 13 years ago | on: Ask HN: How are you using the time between Christmas and New Year?
I am definitely considering publishing it open source though.
As for your project, I am currently writing this blogging platform in perl, though it could be ported to ruby.
Devlin_Donnelly | 13 years ago | on: New Year's Resolutions: Improve Habits With an RPG
I am inspired to perhaps create one along these lines myself!
Devlin_Donnelly | 13 years ago | on: Ask HN: How are you using the time between Christmas and New Year?
Devlin_Donnelly | 13 years ago | on: Ask HN: What are some good tools for converting GPS data into a location name?
Devlin_Donnelly | 13 years ago | on: Ask HN: What are some good tools for converting GPS data into a location name?
Maybe there are some open source map databases of GPS coordinates mapped to political/municipal localities?
Devlin_Donnelly | 13 years ago | on: Ask HN: How to code for humanity?
You might check out the High Priority Free Software projects at: http://www.fsf.org/campaigns/priority-projects/ to see if any of those are up your alley.
Devlin_Donnelly | 13 years ago | on: What (apps) do you use to stash away your ideas?
The result of this is that all of my notes are on different machines, in different folders or formats.
Now that you mention it, it might be nice to have an app in the cloud that would be just for this purpose and would sync data across all of my devices.
There is a Wikipedia article on the subject:
https://en.wikipedia.org/wiki/Aquaculture
As well as an office of Aquaculture in the US NOAA (National Ocean and Atmospheric Administration):
http://www.nmfs.noaa.gov/aquaculture/index.htm
Maybe these resources could help you find information & resources to learn more about ocean farming/aquaculture.