The data newsletter by @puntofisso.
Hello, regular readers and welcome new ones :) This is Quantum of Sollazzo, the newsletter about all things data. I am Giuseppe Sollazzo, or @puntofisso. I’ve been sending this newsletter since 2012 to be a summary of all the articles with or about data that captured my attention over the previous week.
The newsletter is and will always (well, for as long as I can keep going!) be free, but you’re welcome to become a friend via the links below.
I’ve been very busy and travelling this week, so it’s a slightly less dense issue of Quantum than usual.
Every week I include a six-questions interview with an inspiring data person. This week, I speak with Clara Guibourg of Newsworthy, whose interactive climate data investigations and applications you might have seen featured in Quantum of Sollazzo over the years.
If you’re looking for a #ddj job, the BBC are hiring a data journalist for South Asia Visual Journalism team.
‘till next week,
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Patrick Scott, writing for CityMonitor, shows that “the number of high heat days is increasing rapidly across the world, and the implications for businesses are profound.“
Productivity seems to be badly affected by climate change, especially in terms of excess heat (unsurprisingly for me, having worked for a couple of summers in Bologna, with 38C and 90% humidity).
As a way to compound what we’ve learned in the article above, here’s Datawrapper’s Gregor Aisch taking a look at a way “to make warming degrees a little less abstract and a little more scary.”
“A Washington Post analysis of newly released tract-level census data reveals the shifting racial composition of neighborhoods nationwide“
The analysis also calculates a “Diversity Index” for any given area.
“Here’s how a Delta-driven outbreak might unfold in two hypothetical groups of people, all of whom are exposed to enough of the virus to infect a person”.
Interactive explainer by The New York Times.
Just a useful R function.
This is a python library to query a sqlite database stored on AWS s3 (without downloading all of its data). Read-only.
Although this guide is for the specific use case of creating an enclosure, it gives a very good step-by-step introduction to creating a 3D model via photogrammetry (i.e. creating a point cloud via photographs).
Census Reporter is a free, open-source project, that helps exploring US Census data.
Take your Strava activities (or any GPX route) and create a video displaying them. Not all my doing, but I improved the original code by Marcin Wichary to be easier to re-apply, and added a more in-depth set of instructions. The picture below is what it looks like at the end, but this tweet shows the animation at work.
Brilliant write-up by Marie Segger and colleagues on the Economist’s Off The Charts newsletter.
“A few weeks ago Sarah Maslin, our Brazil correspondent, asked our team if a dot-density map that she had come across in her research could accompany her piece about racial segregation in Rio de Janeiro. The map showed each of the city’s 6m residents as a single dot, with different colours denoting their skin colour. Unfortunately, we could not get hold of the underlying data for the map—so we had to recreate the numbers ourselves. In theory, it was a straightforward task: we had to combine the demographic data from the Brazilian census with the geographical information of each census tract within Rio de Janeiro. This would tell us how many people are located within each area, alongside their racial identification: branco (white), pardo (mixed) or preto (black). As anyone who has ever dabbled in any kind of programming knows, nearly every problem has been solved before. “
quantum of sollazzo is supported by ProofRed’s excellent proofreading service. If you need high-quality copy editing or proofreading, head to http://proofred.co.uk. Oh, they also make really good explainer videos.