- 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 )
Tag: electricity
Shared Links for Apr 28th
- Google Maps Mashup Tracks Swine Flu – When the pandemic comes, we can rest assured that we'll be able to watch its spread in real time via Google maps. I guess that's comforting. Right? (tagged: map flu health pandemic )
- Power Hungry: Visualizing The U.S. Electric Grid – Very cool interactive map showing the sources of (electrical) power in the US, and our current transmission system. (tagged: energy electricity power nuclear solar wind coal sustainability design green )
- End the University as We Know It – I can only imagine that the end of the University as we know it is well underway. We should start building its replacement now. I don't know if I could honestly encourage anybody to go to grad school. (tagged: education academia gradschool research )
- Dune: Arenaceous Anti-Desertification Architecture – Take a dune, and inject into it Bacillus pasteurii, with water, nutrients, a calcium source in solution, and oxygen, and it turns sand into sandstone. Figure out a way to do this precisely, and you can "print" buildings in 3D inside the dune, and then let the wind excavate it for you… if you've got your fluid dynamics right. Pretty incredible idea. Still very challenging at scale though. (tagged: architecture sustainability buildings science green bacteria desert dune sand )
- Three Degrees – The Law of Climate Change and Human Rights Conference – Legal aspects of climate change, treaty negotiations, and the probable human rights outcomes of a warming world. (tagged: law climate green sustainability )
Our Electricity
After being asked rhetorically a couple of times if I knew now much I paid for my electricity, and whether I knew how much power my fridge was using ($0.13/kWh, and I don’t know) I bought a “Kill-A-Watt” power meter to see where our $18/month in electricity usage was going… just out of curiosity. It turns out that watching a movie costs abot $0.08 in electricity. The Cold Box (beer) uses about $3/month worth of power. The fridge itself, usually the largest power hog in a household, is close to half our usage at $8/month. Making a batch of coffee in the french press, using the electric kettle is about a penny. The other big electricity users are the stove and oven, and the washer and dryer (though we hardly use the dryer). They can’t be measured with this thing because they use 220V outlets, which are generally hidden away and inaccessible anyway.
After those miniscule numbers, I was amazed to discover that a day’s worth of computation (24 hours, including some research related number crunching by my laptop, my desk light, my backup disk, and my 30″ cinema display) came in at $0.50! So, at least for me personally, at roughly $15/month my computer is by far my largest expenditure of electricity. Interesting!
I’d love to build (and live in) a condo that tracked the water and power usage of each unit, and within each unit each outlet/faucet/etc, in real time, posted to the web, and displayed in the communal entryway. Visibility goes a long way to influencing behavior.