I’m not sure if I’ve linked to this before, but you can type in your zip code and get a list of native plants and the birds they support. It’s a long list, but there are various filters like the type of plant and type of bird you are interested in.
Two simple measures of park access are the total area of parks in a city and the average distance of residences from a park. You can divide the former by population to get a normalized stat that can be compared across cities or tracked over time, and you can look at various stats on the latter such as the percent of households within 10 minutes of a park. Here are a few more ideas from a guy in Singapore.
This all makes some sense to me. I might add some measure of tree canopy. None of this does anything about the weather in Singapore. If you want to enjoy parks there, I recommend getting up very very early. Then take a nice long afternoon nap, stop by the pool if you have access to one (but if you are light skinned realize you are at the equator and you still need sunscreen late in the afternoon), and go enjoy the more urban amenities (like food, very large bottles of beer which are meant to be shared, and a variety of less family friendly entertainments I have only heard about) after dark, which is around 7 p.m. year round. One thing about Singapore is it is safe to be out at any time of night, and street food is available all night.
Here’s some math on U.S. poverty.
A few points/opinions, which I hope will not be too controversial.
Here’s a roundup of some sleep apps and gadgets from Wired. They sought an independent doctor’s opinion on each. And just a reminder there is nothing for sale on this blog, at least at the moment.
Cliodynamics is an attempt to collect and organize data on human history in a structured way that can be subjected to scientific testing. The link I just posted is to Peter Turchin’s blog, and the actual data set(s?) are available here.
There’s also a recently published book on comparative history called Figuring out the Past, which sounds interesting. My formal education in history, which did not extend past grade school, often focused on the history of individual countries (most obviously, the U.S.). Other offerings, which I didn’t have time to take in the course of my oh-so-practical engineering education, often seemed to focus on specific topics. I often wonder if it would be possible to teach kids world history more or less chronologically over the course of several years, and really delve into what was happening simultaneously in different parts of the world at various times. The other way I learn about history informally as an adult is to read or hear about a current event, then dig deeper into the history of a particular geographic area or human group to try to understand the context for the current event. I’m almost always surprised at how little context I actually had to understand the current event before I started digging, and I never have time to do as much digging as I might like.
Data is another way to look at/teach/learn about history. I’m often interested in how many people were alive at a given time, how much energy they used and what their energy sources were, and (somewhat morbidly) what they died of. But I don’t really know where to begin to look for most of that data.
Our World in Data has some numbers on the decline in price for lithium ion batteries.
Since 1991, prices have fallen by around 97%. Prices fall by an average of 19% for every doubling of capacity. Even more promising is that this rate of reduction does not yet appear to be slowing down.
Our World in Data
In the U.S., it feels like we are done with Covid. At least, for those of us who are vaccinated adults. For those of us with children, life is still not back to normal because even as we are being told we can return to the office, we can’t actually do that because the children are still home. And the world is clearly not done with Covid-19, as vaccination is proceeding slowly in many countries outside North America and Europe.
Anyway, here is one more simulation dashboard that shows an ensemble of simulations going forward up to four weeks. This might be useful to see if there are blips on the horizon when (if?) the kids really are allowed to go back to school in the fall. Here’s an article describing the site in MIT technology review.
CDC has a data table on excess deaths during the March-August 2020 period. Obviously, people died of Covid-19 itself, but they also died of other things indirectly caused by Covid-19.
So I think these data support the idea that street designs and a health care system that are at least average compared to modern developed countries would have saved U.S. lives during the pandemic, and would continue to save lives in the future. So can we have nice things or not?
Cicada Safari is a phone app (I’m going to stop saying “smartphone”, I know there are still simple phones out there, but if I’m talking about them I will be specific) that lets people upload reports of Cicadas, and lets you see where people are reporting them. I’m haven’t seen any here in Philadelphia yet. But I am happy to report their cousins the mosquitoes and spotted lanternflys have joined us in the past week or so.
Adam Tooze has a nice visualization of Biden’s spending proposals. Is this a tree plot? a cartogram? I’m not sure, experts please weigh in. A few things I noticed:
That’s just scratching the surface. You could (and should) stare at this graphic for hours, and then there is a long article to go with it. But I have to go make breakfast now because I can hear the children getting grumpy, which means my precious little bit of early morning quiet thinking time as a working-parent-of-small-children-with-no-childcare-or-grandparent-support is now over. If Biden gets this stuff through our dysfunctional Congress, it will be mostly too late to help my family but I hope it helps others. Thanks Obama…Bush, Clinton, other Bush, Reagan, Carter, Ford, and Nixon at least. Especially Nixon, fuck you – a quick skim of the article reminded me of the bipartisan childcare program of the 1970s that you vetoed. Oh and also, fuck you Ralph Nader because maybe Al Gore would have gotten some of this stuff back on track 20 years ago. And last but not least, thank you once again Bernie Sanders for not pulling a Nader.