Shared Links for May 24th

  • Math and the City – The same scaling laws seem to apply to both cities and organisms: infrastructure requirements per capita (or per unit body mass) go down as population (size) go up. Not so surprising, since both cities and bodies are connected to themselves by networks of wires (neurons) and tubes (pipes, transportation, blood vessels) (tagged: urban design economics sustainability transportation infrastructure biology )
  • Sustainable Transport that Works: Lessons from Germany – A 60 page report on how Germany has transformed its urban transportation systems over the Post-War period, moving toward more public transit and bicycle infrastructure, the costs, benefits, effects, etc. What has worked, and what hasn't. (tagged: bicycle transportation policy urban design system:filetype:pdf system:media:document )
  • NASA Gets Out of Satellite Servicing Business – And good riddance. Yes, the capability was amazing, but expensive and unnecessary. For the price of *each* Hubble servicing missions, we could have launched an entirely new Hubble-class telescope on a rocket. The shuttle is a solution in search of a problem. Someday we'll have a real reason to send people into space — e.g. long term scientific exploration of Mars, or if we're lucky, the beginnings of a two-world civilization — but until then, we're just going around in circles, and forking over hundreds of billions unnecessarily to the aerospace industry. Better them than the banks… but that's really no argument to stand on. (tagged: space nasa politics policy )
  • Buying farmland abroad: Outsourcing's third wave – I don't know how anybody can think this is going to work long term. The whole point is to have food when there's a crisis, but in case of crisis, these deals are going to go down hard, unless those on the receiving end are willing to deploy their militaries on foreign soil to protect their investment. Which isn't impossible, but certainly doesn't seem like a great deal for anyone. (tagged: agriculture food china africa sustainability economics trade )
  • Crack Gardens – No, not gardens in which you grow crack, gardens growing out of cracks. A little creative jack-hammering opened up some fissures in this concrete slab, out of which a garden now grows. An homage to the tenacious plants that will take our cities apart when we leave. (tagged: gardening urban design art )

Shared Links for May 21st

Pasadena Bicycle Master Plan Workshop #2

Update August 4th, 2009: The BMP revision is taking longer than initially planned. See this post and the comments from Rich Dilluvio for more information.

After voting to bankrupt California, Michelle (here’s her take on the workshop) and I headed over to the Pasadena High School cafeteria for our second civic duty of the day: the 2nd Pasadena Bicycle Master Plan Workshop.  Ryan Snyder (the consultant drafting the plan) and Rich Dilluvio (Pasadena DoT) claimed that at some future date a revision of the BMP “Goals, Objectives and Actions” document (which I have transcribed below) would be posted on the web somewhere, but no timeline for that was suggested, and given that in February they said we’d have 4 public meetings before the draft plan was finalized in June, and we’ve only just now had the first one, and the first bicycle traffic counts were promised 6 years ago and still haven’t happened, I’m not going to wait on them.

The Pasadena Bicycle Illuminati

Continue reading Pasadena Bicycle Master Plan Workshop #2

Shared Links for May 12th

  • Forecast: On Climate Change, Cooler Temperatures Bring Hotter Air – Augh, we are prisoners to so many perceptual fallacies. Recency and narration loom large among them. It turns out that the average temperature of the last 12 months is a reasonably strong predictor of whether or not people think they'll personally experience the effects of climate change (a multi-decade to century-scale process). We are failing to deal with problems we didn't evolve to perceive clearly. (tagged: climate statistics fallacy propaganda science )
  • In German Suburb, Life Goes On Without Cars – Ah, the New York Times has discovered Vauban! Now if only it had happened when gas was $4/gallon, we might have had a chance. We desperately need more experimentation in urban design, so we can have working examples to look at and build on. (tagged: sustainability green urban design bicycles germany transportation parking architecture )
  • Spuds in a Box – Build a box whose sides you can progressively remove from the bottom up, plant potatoes in the bottom, and fill with dirt as they grow. Remove lower slats to harvest spuds. I've certainly heard this suggestion from other people too. Will be interesting to see how well it works for these guys. Seems like you could also do this with some kind of bag, and if you sewed in sleeves/tubes periodically, that you could tie off, and then untie when you wanted to reach in and root around for a spud, you wouldn't have to worry about soil falling out when you pry off the boards. Others are supposedly reporting 50kg of potatoes from 0.5 m^2 area. (tagged: gardening green sustainability agriculture food urban design potatoes )
  • How Much Do You Earn? – A great annotated visualization of income distribution in the US as of the year 2000. It would be awesome to see an animated version of this, and see how it evolves through time. Turns out I make just about the most likely income in America ($20k), which is far below the mean (and the median). As a "household" though, I suppose we're right about at the median ($40k). Interesting. (tagged: economics wealth taxes government policy visualization )
  • The Capitalist Threat – Geoge Soros on Karl Popper's Open Society, from the mid-90s. He rails against the West's failure to extend a helping hand to the post-Soviet nations. He acknowledges that Truth may not be a strong enough motivator for most people, and that within a society that has decided to be Open, there are still many other choices to be made, but somehow fails to mention the way these two things end up pushing an Open Society closed with propaganda, apathy, and misinformation. Political evangelism – the process of deciding what (arbitrary) values your society is going to have – creates huge incentives for those who do not highly value truth to assert authority. I guess that's part of his point though, to robustly inoculate society against those assertions of perfect (authoritarian) knowledge. (tagged: economics politics popper society philosophy )

Shared Links for Apr 30th

  • Transparency means nothing without justice – Government transparency is necessary, but not sufficient. If police violence is recorded and publicized, and nobody cares, it doesn't matter. This is in come sense emblematic of the coup in western propaganda. You don't need to control the media as the Soviets did or the Chinese do, if your population is comfortable enough not to care what's happening out there to someone else, and if their voting patterns are firmly tied to other issues (especially social issues like abortion), the idea of a democratic revolt becomes fairly abstract. I think this where a lot of the government's fear of economic recessions comes from. When people are out of work, or even hungry, suddenly they become a lot more excitable. (tagged: transparency law police politics technology internet )
  • Condensing steam without water – Concentrating solar thermal power stations are ultimately designed to run a steam turbine, just like a gas-fired power plant. That means they need water (to turn into steam). Problematically, most such plants use water as a condensing coolant (70% of Caltech's water usage is as coolant for our 14MW worth of gas-fired power)… which is going to be hard to come by in the desert, where CSP will be built. Thankfully, there's a way to recondense steam without using a water coolant – but it does require a huge cooling tower. Not so great in Pasadena, but probably fine in the Mojave, next to acres and acres of mirrors. (tagged: solar energy technology sustainability green electricity water )
  • Rousing a Latent Defense Mechanism to Fight HIV – It turns out there is a gene in humans that produces a protein which inhibits infection by HIV, but it has a mutation – a premature stop codon – which prevents it from being effectively synthesized. This mutation doesn't exist in most Old World monkeys (and that's apparently why they can't get HIV). Undoing the mutation allows the protein to be synthesized, and grants HIV immunity to human cells. I imagine that undoing bad mutations like this, and our inability to synthesize vitamin C, might be the first place we see human germ-line engineering outside of disease avoidance (preventing e.g. cystic fibrosis). Really, these mutations are hard to distinguish from genetic diseases – they're just diseases that we, as a species, have learned to live with. (tagged: genetic engineering hiv aids biology science research plos medicine )
  • Anna in the Middle East – Anna Baltzer is a Jewish American who got a Fulbright fellowship to live in the West Bank in 2005, and document the experiences of Palestinians. She's been giving presentations about it ever since. Some parts of her presentation are available via YouTube too. From the 15 minutes I watched she seemed like a level headed critic. She's speaking in Boulder and Denver in May. (tagged: israel palestine politics fulbright peace war )
  • Twitter + Stimulus = Humans are Gullible – A wonderful demonstration of the power of the confirmatory bias. Twitter is the perfect platform for the injection of random falsehoods. Too short for citations. Instantaneous distribution. Make sure your followers are predisposed to agree with what you say, and you can get them to believe just about anything – within that constraint. Too bad the author seems to think this only applies to conservatives. (tagged: politics twitter statistics propaganda )

Support AB 1186 for transparent parking costs

Dear Assemblymember Portantino,

I would like to urge you to support AB 1186, an effort to enhance the transparency of parking costs for easing the enforcement of California’s parking cash-out legislation.  This bill has been introduced by Assemblymember Bob Blumenfield (District 40), and is due for a hearing in the Assembly Transportation Committee on May 11th.  The cost of parking is enormous, generally hidden, and heavily subsidized, producing significant distortions in the transportation choices made by Californians.  Making the price of parking transparent, and enabling those who choose not to drive to recoup those costs, removing the hidden subsidies, is in the best interest of business, transit authorities, the citizens, and California in general.  For instance, at my own institution in Pasadena, the California Institute of Technology, we are forced by city regulations to provide what would constitute a vast oversupply of parking were employees and students required to pay the true price of providing those spaces, wasting $3 million each year (approximately $1000 per person on the campus), that could be better spent on our core scientific research and education mission.  While this bill unfortunately would not directly address this waste, it is a step in the right direction, and I strongly encourage you to consider other such steps.

Sincerely,

Zane Selvans

Shared Links for Apr 17th

When the Rivers Run Dry by Fred Pearce

When the Rivers Run Dry is a kind of modern, global Cadillac Desert, looking at present and future water issues around the world.  I think in the end it was too ambitious, looking at too many individual situations superficially, without going into the details on how they came to be the way they are (which Cadillac Desert was able to do, since it focused only on the American West), and also without drawing enough insightful generalizations from the many different cases the author studied.  It ended up feeling mostly like a dreary litany of mistakes painstakingly repeated in nation after nation, decade after decade, apparently without any learning going on.  Often these projects were funded by the World Bank and other international “aid” organizations, or by powerful central governments.  In both cases, the motivations often turned out to be short sighted and political or financial and had little to do with good engineering, productive agriculture, fisheries, or long term stability.

Continue reading When the Rivers Run Dry by Fred Pearce

Shared Links for Apr 10th

Shared Links for Apr 8th

  • The secret, social lives of bacteria – Cooperative behavior between bacteria, both inter and intra species, coordinated via chemical messages. Behavior like "should we make light?" and "should we kill the host now?". Scary, awesome, and a beautiful system to investigate with algorithmic game theory! (tagged: cooperation biology technology bacteria science )
  • Computational Legal Studies – More people using machines to understand politics. A whole new class of dual use technology. Propaganda or transparency? Manipulation or clarity? Unauthorized social networking. (tagged: transparency technology government law )
  • Public Private Investment Partnerships a la Enron – Giving banks the ability to both buy and sell into the toxic asset markets being set up under PPIP is a recipe for market gaming in the tradition of Enron, as outlined in this example. Great, a trillion dollar Enron! (tagged: finance bailout economics policy enron ppip banks )
  • The New Nostradamus – Bruce Bueno de Mesquita uses large game theory simulations to try and predict the outcomes of complex negotiations involving many parties, both economic and political. Sounds interesting. Also sounds a little bit like bullshit. But apparently the CIA did a prospective trial (no backtesting bias) and found that the models made accurate predictions something like 90% of the time, when the analysts providing the inputs to the model made wrong predictions. Not so surprising that computers are better at synthesizing massive logical datasets into an outcome. The hard part seems like it would be getting the right inputs, and also trusting that people behave rationally, and (perhaps) know what's good for them. (tagged: economics politics science math prediction gametheory technology )
  • Ice Shelf Instability Backgrounder – A good backgrounder from last summer on the Wilkins Ice Shelf (which has just collapsed), and shelf dynamics in general, with links to the relevant literature. None of this is quite as sudden and shocking as the media reports have made it out to be. (tagged: climate antarctica ice shelf )