Language/Multiple-languages/Culture/Ideas-about-language-learning
This is for expressing your ideas about language learning and culture exchange.
Everyone may say something under its username. And generally, do not delete other users' content.
GrimPixel
Better if they are well-funded and be freemium or free. I don't expect Duolingo to do that, at least before it makes its new courses acceptable.
Website of visual dictionary
I have seen three books:
5 Language Visual Dictionary
The Firefly Five Language Visual Dictionary: English, Spanish, French, German, Italian
Merriam-Webster's Compact 5-Language Visual Dictionary (English, Spanish, French, German and Italian Edition)
So I think there can be a website can provide such a service, even better.
[REALIZED: https://babadada.com/]
Review: There are no genders, no pinyin tones for Chinese, no furigana or romaji for Japanese, many languages are incomplete without indications, parts of speech are not clear. Great for having dialects.
Tutorials of languages
I have seen two channels on Youtube:
https://www.youtube.com/user/ProgrammingKnowledge
https://www.youtube.com/channel/UCfx2dro_w4_MyA19Nm5badg
providing "tutorials" about programming languages such as C++, Java, Python, which last several hours. So I think somebody may give such "tutorials" about the grammar of human languages.
Filter of characteristics
This requires a database of characteristics of ethnics or nationalities, with a filter. Input the characteristics, and get the result of which ethnics or nationalities possess them.
Of course, it requires the update, because culture may change with time.
Sentence analyzer
Tatoeba has a lot of sentences, but it only shows what a sentence looks like. There should be something radical, to reveal the function of a sentence, to show people the logicality of a sentence. That is to say, syntax.
I imagine a service, which draws parse trees of each sentence, and shows how a sentence may be changed in the structure into another one without changing its general meaning.
[REALIZED: http://www.link.cs.cmu.edu/link/submit-sentence-4.html http://www.zzcad.com/parse.htm]
Review: It is clear that linguistics have this tool since long ago. But it is really not widespread, because they are usually amateur-proof. I wish there will be support for more languages.
Parallel text in video games and other software
It is very common for current games to be multilingual, but no one has made such a little change to help language-learning players. Also in other software.