I created a a simple application using the HSL open data XML dump, the MapQuest Javascript API and the heatmap.js library. Here’s a screenshot: The heatmap shows the number of departures from each stop in the HSL public transport system. It essentially answers the question “How easy is it to get away from here?”. Or,… Continue reading HSL departures heatmap
Author: amplifier
Nintendo NES RF-module removal
I was looking for a broken NES so I could use its case for a project I’ve been thinking about. I found one on eBay at a reasonable price, so I bought it. Once I got the unit, I found out that it had the infamous “flashing red LED” problem, which was easily remedied by… Continue reading Nintendo NES RF-module removal
Pythagoras calculator
Much like with the resistor calculators, I wasn’t happy with the tools I found on the first page of Google hits. So, here’s my take on an online Pythagorean theorem calculator: Here’s the direct link to the tool. EDIT 2014-02-05: I’ve added a visualization of the triangle after that was suggested in the comments.
Apple Mail and marking messages read
I had some trouble setting up Apple Mail the way I want it to work. What I’m used to doing is keeping a list of “Unread” messages, which is really a list of “Messages that need some action from me before I can forget about the message”. By default, Apple Mail doesn’t really work well… Continue reading Apple Mail and marking messages read
Resistor tools
I just wrote a parallel resistor value calculator, and a resistor colour code calculator. There are lots of them on the web, but most of them seem to have a 1990’s era user interface, where you need to enter values into separate fields and then click on the “Calculate!” button. Blech. So, I rolled my… Continue reading Resistor tools
Pepakura Iron Man helmet – part 3
Continued from here Days 10-14 Nothing terribly exciting here. More filling and sanding than you can shake a stick at. Something noteworthy, though. This is obvious, but it’s still worth saying: The better the original paper model, the less work is needed to make the fibreglass model look good. I’ve had to do so much… Continue reading Pepakura Iron Man helmet – part 3
The Standard Coffee Mug Dimensions
(Edited on 2014-08-26 to add volume information and additional measurements) Despite all the thing that have been standardized in this day and age, one of our most important tools has so far escaped standardization: The coffee mug. At least I couldn’t find any such standard. Everyone knows what the usual cylindrical coffee mug looks like,… Continue reading The Standard Coffee Mug Dimensions
Cyclone separator for shop-vac for 25€
I’ve been thinking about building a cyclone separator for my shop-vac for a while now, and I finally decided to go ahead and do it. I was planning on building a Thien cyclone, and was shopping for the required buckets and bits of pipes, when something else caught my eye in the store. It was… Continue reading Cyclone separator for shop-vac for 25€
Filtering a Drupal 7 View based on multiple user profile fields
This is basically continued from the previous post Filtering a Drupal 7 View based on a user profile field, where a user called Juan asked a simple question: “How do I filter by multiple user profile fields, so that all the terms must match?”
Pepakura Iron Man helmet – part 2
[Continued from here] The Internet is full of stories of skilled people making awesome stuff. This isn’t one of those stories. Day 7 I sanded the whole helmet to a matt finish. This made it much easier to see all the spots that needed further attention. And there were quite a few. Plenty of fiberglass… Continue reading Pepakura Iron Man helmet – part 2