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We can use your help mapping all the businesses of the world!

https://www.alltheplaces.xyz/

Thanks for the kind words! I'm one of the maintainers, and we are always eager to hear what new users think of it.

Ah yeah, hooks are strange at first..

They didn't click for me until I read this netlify blog post: https://www.netlify.com/blog/2019/03/11/deep-dive-how-do-rea...

If you think of them as mostly just syntactic sugar for closure state variables wrapped up in the module pattern, it's not so bad. (This is how some of us have been writing D3.js code for years!)

Fun fact! SVG is one of those things that is often easy to minify down below your nginx/apache/cdn minimum gzip length.

If your SVG files are < ~1kb, it's usually faster to just not gzip them. If they're < ~150b, gzipping will probably make both slower _and_ bigger.

I see lots of responses to this article asking "why client-side navigation?". I can share my own experience with building an app a few months ago, and how/why I switched to a client-side single-page app..

The app is this: https://osmlab.github.io/name-suggestion-index/index.html

It is a worldwide list of brands that have been seeded with OpenStreetMap data, and which volunteers have linked to Wikidata identifiers. We use this data in OpenStreetMap editors to help people add branded businesses. Pretty cool!

1. We had data in `.json` files (but not too much data) and we wanted to show it to people working on the project so that they could review the brands.

2. I spent a day or two and built a static document generator. It took our data and spit out an `index.html` and few hundred `whatever.html` files. This worked really well. As the article says, "browsers are pretty good at loading pages". A side benefit - Google is really good at indexing content like this.

3. Then users made the obvious request: "I want to filter the data. Let me type a search string and only show matching brands. Or brands that appear in a certain country".

4. OK, SO.. If your data is spread out over a few hundred files, short answer - you can't do this.

5. But the data is _really_ only a few megabytes of `.json`. I spent a few days to learn React and switch to a single-page client side app so that we can filter across all of it. The new version uses hooks to fetch the few `.json` files that it needs, `react-router` to handle navigation between the index and the category pages. It works pretty ok! Most people would stop here.

6. The first version with client-side filtering performed good enough, but not great. The reason was because, as users type these things happen: The filters get applied, the React components get a new list of brands passed in as props, and React re-renders these new lists to the virtual DOM, and eventually, slowly, the real DOM.

7. It's really easy to build React code like this, and many people do. But it is better to avoid DOM changes in the first place. I changed the components so that the lists stay the same, but filtered things just get classed as hidden `display:none` instead of being added and removed from the DOM, and performance is much better now.

Anyway hope this is helpful to someone!

Realistically, we can't pay people full engineering salaries to do random OSS.

Why can't you?

Professors get paid full professor salaries to do "random research".

Doctors get paid full doctor salaries to treat "random illnesses".

I expect if you looked a bit closer, you'll find that "Random OSS" is maintenance that makes the entire ecosystem possible. Would love to hear from some of your engineers what they are doing to earn that $20/hr.

As a professional full-time open source maintainer and developer, initiatives like this bother me a lot.

The work we do is worth much more than $20/hr.

Ideally I'd like to see open source developers in stable, tenured positions that pay fair salaries with benefits. Anything that normalizes the idea that open source should be funded on tips, patreons, or spare time goodwill is embarrassing to all of us. We can do better.

If you value open source, hire people to do it and pay them fairly.

Do we really have to Ask HN this every few days?

from TFA:

Crucially, self-driving cars also rely on conventional cameras. So if those lidars are not camera-safe, it won't just create a headache for people snapping pictures with handheld cameras. Lidar sensors could also damage the cameras on other self-driving cars.

Cool. This will be fine as long as 2 self driving cars never go near each other.

Lots of people don't realize that 1 cup milk has 13g sugar from the lactose.

For comparison, a typical sugar packet is 2-4g.

(This is why cereal + milk is probably just about the unhealthiest thing possible to start your day).

It's a good idea to switch from the sugary/milky Starbucks drinks to anything else - like cold brew, or black coffee where you add trace amounts of sugar/cream yourself, if any.

Set your profile picture (Slack/Twitter/GitHub/etc) to something happy. You’ll see it thousands of times a day as background noise, but it will affect both your own mood and how other people treat you.

Hah yeah, it was kind of funny that by the 4th shot, the ER docs and police there knew me as "the rabies guy".

I also was told that the immune globulin is a bit complicated because it needs to be prepared specifically for the person's weight. So unlike off the shelf vaccines, it requires an on duty pharmacist to actually do something before they can give it to you, which I'm sure adds to the cost.

Oh! I got rabies shots in 2014 after being bitten by a dog.

The course of treatment is injections 0day, 3day, 7day, and 14day. I went to the emergency room to get these injections, at the recommendation of my primary doctor.

Unfortunately I don't have the bills anymore, but the total cost was a bit over $20,000, which insurance adjusted down to about $500/visit.

Basically, it would have bankrupted me if I didn't have insurance. Yes, the US healthcare system is really this broken.

I'm kind of amazed they were even able to record a video in a 1200 Tesla magnetic field.

OpenStreetMap US | Executive Director | Remote USA only | Full Time

OpenStreetMap US seeks a new, full-time Executive Director to be a part of our continued mission and growth! OpenStreetMap US aims to broaden the reach and diversity of the OpenStreetMap community and increase the use and improve the quality of our map data. As Executive Director, you will work closely with the Board to move these goals forward and provide strategic vision to further the organization’s mission.

The duties of the Executive Director cover a broad scope, encompassing organizational program and strategy, as well as fundraising, finance, and marketing. This role will require a high degree of flexibility and creativity, and a collaborative and inventive orientation. The successful candidate will be mission-driven and passionate about the idea of creating and applying open, accurate geospatial data for the world.

This is a unique leadership position within the open source mapping and open geographic data communities. OpenStreetMap US is one of the largest user communities of the OpenStreetMap project, and as the Executive Director you will have a chance to make a difference at the local, national, and international level. This is a role with ample room for growth and creativity, and the successful candidate will come from a diversity of backgrounds. We encourage you to apply!

---

For more info, or to submit an application, visit https://www.openstreetmap.us/jobs/

Hey sorenjan - The OSM Wiki is not correct. We've received no license from Strava that allows tracing outside of their iD fork.

Current progress on securing permission to use the heatmap for OSM tracing is happening here: https://github.com/osmlab/editor-layer-index/pull/373

And it has a barrier to entry - you have to be a tiny bit nerdy to confidently make edits.

Serious question - what can we do to lower these barriers to entry? Friendlier community norms? Documentation / tools? Social stuff (groups, meetups, etc?)

I'd love to hear people's experiences on contributing, and your honest feedback. I'm one of the "core" members of OSM (I maintain the iD editor) and we're always looking for ways to improve the new user experience.

Personally, I think a good intermediate step will be to embed better and more automated review processes.

I agree! For now, most review is done manually by volunteers. We're looking for ways to make this process more efficient.

If you haven't already, check out the OSMCha changeset review tool: https://osmcha.mapbox.com/

It runs some checks against every changeset as they occur, and presents a newsfeed-style list for anybody to review. It also has filters, in case you are interested only in certain geographic regions.

Sorry to hear that you had a bad experience.. For what it's worth, it sounds like your edit was fine (what you described is actually the preferred way to map divided roads) and should not have caused any issue.

I'd love for you to give it another chance! A few of us do monitor the changeset discussion feed in Slack, and try to speak up when we see new users being mistreated.

The patent helps sensitive equipment work (think like an EKG monitor) during a lightning storm.

SF also has like 1/10 the population of NYC.

For starters, stop airing commercials on TV that show Watson whispering to the capacitors in a jet airliner, or the grapes in a vineyard.

I wouldn't consider "Stop what you're doing or we will end you" a slap on the wrist.

I think it's pretty safe to say that Alchemist will never be the most popular craft brewery by sales volume.

I've lately found myself wondering why there isn't a C/C++ tool comparable to npm, cargo, cpanm, etc.

We wrote a thing like this at Mapbox, try it out: https://github.com/mapbox/mason

This is great news, congratulations to the team at Mapillary!

All of this imagery is available immediately for use in OpenStreetMap editors like iD and JOSM. The OpenStreetMap project values "ground truth" observations as the most valuable source of information, and these photos let volunteer mappers easily verify conditions on the ground: https://www.mapbox.com/blog/id-mapillary-js/

If you haven't mapped with OpenStreetMap yet, give it a try. It just so happens that this week is OSM Geography Awareness Week: http://osmgeoweek.org/ so there might even be a mapping event near you.

However you don't need a special event for an excuse to improve OpenStreetMap - it is a very unique project in that anybody can make meaningful contributions to the project immediately. Whether you realize it or not, you are the foremost expert in the world when it comes to - your part of the world.

I work for Mapbox, maintain OpenStreetMap's in-browser iD editor (I just released v2.0.0 today!), and I've done a fair bit of streetview imagery collection for Mapbox. Ask me anything!

Landsat 8 has 11 different imaging bands, and 2 of them (bands 10 and 11) are thermal infrared bands just for measuring heat.

For more info, see this Landsat 8 cheatsheet (written by my awesome coworker Charlie Loyd): http://landsat.gsfc.nasa.gov/?page_id=5377

At around 5m/px, the imagery from planet labs doesn't currently have high enough resolution for it to be useful for tracing in OSM. It looks good only down to around z14ish.

But what they're doing is still really interesting. Their stated goal is to be able to image every part of the planet daily by the end of 2016. And it's possible in theory to process multiple passes of lower resolution imagery into a composite imagery layer with a higher effective resolution. So it wouldn't surprise me if they use their microsatellite approach to push into markets that are currently served only by hi-res imagery providers like Digital Globe (imagery from expensive satellites) and Pictometry (imagery from airplanes).

$150k salary + $150k stock does not equal $300k salary. Not even in SV. And that 30% bonus sounds like made up nonsense.

Cool! Needs 2012 tag though :)