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I made a puzzle out of one of David Revoy‘s excellent Pepper and Carrot libre web comic illustrations a while back and wrote in to the author. Here is his post about my libre licensed Pepper and Carrot puzzle. (Apologies for the poor picture quality–it’s what we had on hand.)

I regret to say that my little boy has since slobbered and munched on the pieces so much that, while they held up for a long time, at least one of them has come apart (and another piece is missing). I had a few copies made with the foreknowledge that the first one would eventually be lost, destroyed, or both. I’ve already given one away and now I plan to hand out the other to friends with kids as well. So I guess I’ll have to make a new one with a different picture for the replacement. Suggestions welcome.

Circuit Stickers on Blocks


So I’ve been disappointed for a while at the lack of technical toys for toddlers and wanted to do something about it. Yesterday I finally put together a very initial prototype using Circuit Stickers and blocks. Here are a couple pictures.


I’d love to see my introduction to computer engineer project, designing and building a 4 bit arithmetic logic unit with a few basic 7400 chips, possible with something like this.

OpenStreetMap tags for new dads

As the father of a one year old, I find myself wanting to know different things from the map than I used to. When nature calls for my little one, I want to know whether the guy’s bathroom has a diaper changing station, for one thing. While not yet accepted through the wiki voting procedure, there is a proposed tag for this.


A more complex need that our baby has, as a crawler and toddler, is the need to be active and play in a relatively safe environment, at best in the company of other children. The following tag mostly covers this.


however I’m not sure if people are tagging McDonald’s PlayPlaces and the like with this. Until I’m informed of a better alternative, I plan to start, though.

I think these are both particularly useful while traveling. We just got back from a trip and I used Vespucci to make at least one such update while on location. The current tag editor works pretty well for this, you just have to know the tags off the top of your head or take the extra time to look them up.

wpid-screenshot_2014-09-05-06-33-23.pngwpid-screenshot_2014-09-05-06-33-44.pngUnfortunately, on the flip side, I don’t know how to search for these tags specifically while on the go. There is a leisure search option that I’ve found great in the past, but it appears to include parks regardless of play equipment, and being able to differentiate would be awesome. Update: thanks to a helpful Redditor, I now know how to do this! In OsmAnd choose the search option and then “Custom filter”. Press “Leisure” and then scroll down the list that pops up and select “Playground”. You can then view the filter on the map to see just playgrounds.

I don’t think OsmAnd has the diaper tag in its distillation of the map data. Presumably one could supplement the usual data like is done for ski slopes. If I find the time, I’ll have to look into that.