September 29, 2014
September 24, 2014
“But the clinching argument came from my daughter’s impassioned defense of camp counselors, and her outrage that someone glancing at résumés would believe that a 20-year-old who fetches coffee at Google is more impressive than one who spends days and nights nurturing, teaching, organizing, comforting and inspiring…
“What I do there matters.”
September 19, 2014
“‘It turns out there is a lot of information about the astronomical bodies floating out there in space,’ he explains. ‘Starting with the sun. The sun itself is 128,500 lux — that’s lumens per square meter – but it turns out the moon is a crappy reflector of light.’ Daly discovered that the moon is only 12-percent reflective, and absorbs most of the sunlight hitting it. On the other hand, 12-percent of 128,500 lux is quite a lot. ‘It’s the equivalent to ten 100-watt lightbulbs per square meter of light bouncing off the moon.’ More than enough make Aldrin visible under the lander’s shadow.
While this exercise showed that the moon was reflective enough to highlight Aldrin, something was still wrong. Daly noticed that the astronaut’s side wasn’t lit the same in NVIDIA’s simulation as it was in NASA’s photograph, but he wasn’t sure why. ‘A couple of people really into the moon landing told me, ‘by the way, you should take into account Neil Armstrong and the light coming off of him.’ At first I was like, yeah, whatever — the sun is doing all the work — something the size of a guy in a space suit isn’t going to contribute much light.’ He quickly learned his assumption was wrong: the material on the outside of the astronaut’s suits is 85-percent reflective. ‘Sure enough, we put him in there, adjusted the reflectivity of his suit, put him in the position where the camera would be… and it contributed another 10% or so of light to the side of Buzz Aldrin.’”
Pretty neat pics at the link
September 16, 2014
“There are two kinds of fools: one who says this is old and therefore good, and the other who says this is new and therefore better. The argument between the two is as old as humanity itself, but technology’s relentless exponential advance has made the divide deeper and more contentious than ever. My greatest fear is that this divide will frustrate the sensible application of technological innovation in the service of solving humankind’s greatest challenges.
The two camps forming this divide need a name, and ‘Druids’ and ‘Engineers’ will do. Druids argue that we must slow down and reverse the damage and disruption wrought by two centuries of industrialization. ‘Engineers’ advocate the opposite: we can overcome our current problems only with the heroic application of technological innovation. Druids argue for a return to the past, Engineers urge us to flee into the future.
September 12, 2014
“My 5-year-old son has just started reading. Every night, we lie on his bed and he reads a short book to me. Inevitably, he’ll hit a word that he has trouble with: last night the word was ‘gratefully.’ He eventually got it after a fairly painful minute. He then said, ‘Dad, aren’t you glad how I struggled with that word? I think I could feel my brain growing.’ I smiled: my son was now verbalizing the tell-tale signs of a ‘growth mindset.’ But this wasn’t by accident. Recently, I put into practice research I had been reading about for the past few years: I decided to praise my son not when he succeeded at things he was already good at, but when he persevered with things that he found difficult. I stressed to him that by struggling, your brain grows. Between the deep body of research on the field of learning mindsets and this personal experience with my son, I am more convinced than ever that mindsets toward learning could matter more than anything else we teach.
Researchers have known for some time that the brain is like a muscle; that the more you use it, the more it grows. They’ve found that neural connections form and deepen most when we make mistakes doing difficult tasks rather than repeatedly having success with easy ones.
What this means is that our intelligence is not fixed, and the best way that we can grow our intelligence is to embrace tasks where we might struggle and fail.”
Excellent stuff. I’m definitely a believer in praising students for their tenacity, patience, and ability to learn, and not for any sort of innate “smartness” that we may observe. I confess that my autodidactic polymathishness constantly struggles with the frustrating process of getting the old brain matter to learn something new (electronics and programming is really stretching me right now). It’s encouraging to see that effort does bear fruit, even when that fruit is slow-growing.
September 8, 2014
“For the first time, scientists have been able to send a simple mental message from one person to another without any contact between the two, thousands of miles apart in India and France.
Research led by experts at Harvard University shows technology can be used to transmit information from one person’s brain to another’s even, as in this case, if they are thousands of miles away.”
September 5, 2014
“Victoria Osteen’s comments fit naturally within the worldview and message she and her husband have carefully cultivated. The divine-human relationship is just turned upside down, and God’s greatest desire is said to be our happiness. But what is happiness? It is a word that cannot bear much weight. As writers from C. S. Lewis to the Apostle Paul have made clear, happiness is no substitute for joy. Happiness, in the smiling version assured in the Age of Osteen, doesn’t last, cannot satisfy, and often is not even real.”
New 3D printer concept looks amazing, and is a great step forward in the increasing competition/brainspace of 3D printing.
This one basically takes the old idea of a 3D printer, complete with rigid frame, comples drive mechanism, anti-backlash programming, platform levlelling, etc, and gets rid of most of it. Hook two stepper motors together with a platform, stick an extruder on top, and load some (extremely complex) interpolation software and you’ve got yourself a 3D printer. More accurate and reliable than the breakdown-prone MakerBots. This looks to be the next generation in the 3D printer space. Very cool.
September 2, 2014
A response to some work that was going to be referred to me.
No offense, and a sincere thanks for thinking of me, but my experience with most people is that they’re not willing to pay hourly rate plus materials that most accomplished woodworkers (with money invested in equipment) need to charge to make a living (hence why I’m not making a living woodworking!).
Most peoples’ expectations of price for custom woodworking comes from the fact that they can go to the furniture store and pick up, say, an entertainment center for around a grand-and-a-half for a decent one. However, “decent” means that it’s cheap particle board with a nice looking laminate on top (which means its value is only skin deep). If they’re lucky it’ll last a decade or until the first major move. But, hey, appearances are what most people go on.
Meanwhile I spent 9 months and 200 hours building our solid quartersawn red oak entertainment center with ebony inlays and custom stained glass. The materials alone (unfinished, unplaned, pretty much just a hunk of tree) cost me almost twice what a Fry’s entertainment center would cost. And that’s before hardware like hand-hammered brass latches and handles. Several coats of hand-rubbed, custom tinted coloration and shellac, hand cut glass, etc. It’s an heirloom piece that will be around for at least a century or two as long as it’s not mistreated.
When I asked the employee at the woodworking store what he’d consider a good price for the piece (and thinking he might say $4,000-$5000), he responded by saying that something like this would probably go for the mid-teens. As in around $15,000. I’m really proud of that.
So yeah, most people probably don’t want to pay for that sort of workmanship.
I’ve had a few people who understand hand work and heirloom quality contact me and I’ve done pieces for them. They’ve been thrilled. But then again they’re the kind of people who have an “art budget”.
Renovations and around-the-house kind of stuff is still charged at plumbers rates. In my experience, though, most folks are looking for someone who would be willing to charge minimum wage and also include the materials in that. It’s depressing.
And also the reason that most custom woodworking shops either cater to the wealthy socio-economic market (who understand the value of super high quality) or go out of business. You’ll rarely meet a woodworker competing downmarket who is happy with their situation.
August 31, 2014
“More than five years after the stimulus was signed into law, a new audit reveals the U.S. Department of Agriculture (USDA) spent nearly $5 billion in questionable costs and funded programs that were ‘inherently not shovel ready.’
‘As a result of these reviews, we also reported monetary exceptions of over $5.1 billion, including $4.9 billion related to questionable or unsupported costs,’ the audit said.
‘Most programs that received Recovery Act funds were expected to quickly pump money into the economy by immediately executing infrastructure and labor intensive projects,’ the OIG said. ‘These were known as ‘shovel ready’ projects.’
‘However, our reviews discovered USDA encountered challenges because several of its programs were inherently not ‘shovel ready,’’ they said.
Of the nearly $5 billion in unsupported costs, the USDA has recovered only $11 million. The OIG still has seven open investigations for fraud and abuse of Recovery Act funds.”
Just remember this the next time someone says “there’s no time to waste”. But apparently there’s plenty of money to waste.
August 29, 2014
“One persistent criticism of the tech industry is that it no longer works on big ideas. For all of Silicon Valley’s talk of changing the world, critics say, Google and Facebook mainly hire armies of coders to figure out how to serve you more relevant ads, while Apple and Amazon just want to keep selling you new stuff.
These are crude takes, but they get at the disillusionment with an industry whose recent innovations do not seem to have resulted in measurably more prosperous lives for most Americans….
‘What we haven’t yet done is put information technology, biotechnology and nanotechnology into industrial technology. And once we begin to do that, we’ll open up technologies that are equally large as the invention of the airplane,’”
August 27, 2014
Let me explain. Or actually, in the case of Burger King’s planned acquisition of Tim Hortons, let my colleague Matt Levine explain, because he is smarter and funnier and a better writer than I am, and has already nicely summed things up:
The purpose of an inversion has never been, and never could be, and never will be, “ooh, Canada has a 15 percent tax rate, and the U.S. has a 35 percent tax rate, so we can save 20 points of taxes on all our income by moving.” Instead the main purpose is always: “If we’re incorporated in the U.S., we’ll pay 35 percent taxes on our income in the U.S. and Canada and Mexico and Ireland and Bermuda and the Cayman Islands, but if we’re incorporated in Canada, we’ll pay 35 percent on our income in the U.S. but 15 percent in Canada and 30 percent in Mexico and 12.5 percent in Ireland and zero percent in Bermuda and zero percent in the Cayman Islands.”
What is he talking about? The U.S., unlike most developed-world governments, insists on taxing the global income of its citizens and corporations that have U.S. headquarters. And because the U.S. has some of the highest tax rates in the world, especially on corporate income, this amounts to demanding that everyone who got their start here owes us taxes, forever, on anything they earn abroad.
This is a great deal for the U.S. government, which gets to collect income tax even though it’s not providing the companies sewers or roads or courts or no-knock raids on their abodes. On the other hand, it’s not a very good deal for said citizens and corporations, especially because our government has made increasingly obnoxious demands on foreign institutions to help them collect that tax. Both private citizens and corporations who have a lot of income abroad are deciding that they’d rather renounce their ties to the U.S. than deal with the expense and hassle of letting it tap into income that they have earned using some other country’s roads and sewers and police protection.
If there are two car dealerships next door to each other and one offers a car for 20% less than the other (all-in), which one are you going to patronize? Sure, the coffee, environment, and paint job might be better at the more expensive dealership, and that might be worth paying more for, but at some point– 10%, 35%, 50% (and there is a point)– the benefits of going to the higher-cost dealer are outweighed by the economic comparison.
People who are arguing against Burger King leaving the U.S. and reincorporating in Canada are essentially saying that they must continue patronizing the more expensive store, and they are using guilt-trip tactics to argue their point. It’s what we have come to expect from a less economically literate worldview. I’m glad that we’re finally seeing such effective pushback. I hope it’s not too late.
Do I want Burger King to leave the U.S., taking a lot of tax revenue from us? No way. But I sympathize with their plight (being a small business owner, boy do I sympathize). It’s absolutely worth it to be a part of the U.S. economic system and, yes, I think they do “owe” something on some level to that system. But when that system constantly demands more and more while other countries are offering them better rates? It’s a no-brained decision to eventually leave for other shores.
Dear taxing authorities: if you get greedy, eventually you’ll get nothing. There’s a lesson here– there’s a trend going on here. You need to learn it before you have no business tax revenue left.
Tax sanely. Spend wisely and responsibly. Be good stewards of the economic trees. And the Burger Kings, and all of his friends, may come back.
August 26, 2014
I just experienced existentially bad teaching tonight. I mean BAD. No context, no overview, no tell-them-what-you’ll-tell-them-then-tell-them-then-tell-them-what-you-told-them (the basis of great instruction). It was made even worse that the topic was an extremely complex and deep software suite. The students were completely lost and couldn’t even get the screen to look the same as the instructors (this program is really deep).
As an educator (and one that has been teaching more and more lately), this sort of thing has graduated from being an irritation and annoyance to being almost, I don’t know, a righteous cause for me. Sitting in class tonight (before I got up and walked out), I suddenly remembered every single bad teacher in my education career and wanted to pull them each aside and demand of them: WHY DID YOU FAIL US?!?!
Teachers: if you can’t prepare, if you can’t communicate, if you can’t create a framework of knowledge in someone else’s mind and then methodically, confidently fill that framework with information that can be recalled and utilized by the student later, then I don’t know what you’re doing, but it’s not teaching.
August 25, 2014
How did the Napa earthquake affect sleep?: “The South Napa Earthquake was the strongest to hit Northern California in 25 years. Our data science team wanted to quantify its effect on sleep by looking at the data recorded by UP wearers in the Bay Area who track their sleep patterns.”
Cool graph. I like that this sort of distributed accelerometer sensor data is being aggregated into interesting data sets. Neat what you can see.
August 19, 2014
“These are some examples of the beautifully crafted wooden gaming tables designed and built by Geek Chic. The tables range in price from $2,500 – $16,000 and ‘have two surfaces – a removable top and a recessed playing area. You can customize the number of player stations, drawers and rails and pick from walnut, maple or cherry wood.’ Plus you can get cup holders.”
More beautiful pictures at the link.
August 14, 2014
“Viv is an open system that will let innumerable businesses and applications become part of its boundless brain. The technical barriers are minimal, requiring brief ‘training’ (in some cases, minutes) for Viv to understand the jargon of the specific topic. As Viv’s knowledge grows, so will its understanding; its creators have designed it based on three principles they call its ‘pillars’: It will be taught by the world, it will know more than it is taught, and it will learn something every day. As with other AI products, that teaching involves using sophisticated algorithms to interpret the language and behavior of people using the system—the more people use it, the smarter it gets. By knowing who its users are and which services they interact with, Viv can sift through that vast trove of data and find new ways to connect and manipulate the information.”
Peregrine Andrews on the Sound of Sport: What is Real?: “Dennis started out recording music and for a time owned a studio. But, as he told me, it wasn’t an easy living. So when ESPN, the American TV sports network, started up in the 1980s, he found a new profession – as a sound supervisor for TV sport. He tried to apply the same standards, and some of the same methods, that he was used to in the recording studio, to the task of capturing sounds from the football pitch or basketballl arena. And when he took on the Olympics job in 1992, he brought in the use of a lot more close-miking, a technique borrowed from music recording, where many microphones are used, each placed close to a sound source. In archery, for example, this means putting a microphone right next to the archer for the launch sound and another right near the target for the hit. The whole picture is built by mixing these signals together in appropriate amounts. It allows for far greater definition and control than, say, a single distant microphone high above the action. But more microphones means more circuits to get the signals back, and more inputs on the mixer. But the introduction of digital pathways around events and digital mixing consoles mean that this isn’t the headache it was in the analogue past.”
Great article and short podcast
I asked him how come we never see on television channels reporting from Gaza any Hamas people, no gunmen, no rocket launcher, no policemen. We only see civilians on these reports, mostly women and children. He answered me frankly: ‘It’s very simple, we did see Hamas people there launching rockets, they were close to our hotel, but if ever we dare pointing our camera on them they would simply shoot at us and kill us.’’
I understand why these reporters didn’t write about this while they were in Gaza. They could have been kidnapped or killed. Perhaps their editors back home kept quiet for the same reason, to protect their employees and freelancers.
There is a solution to this conundrum, however. Don’t send reporters to places where they are intimidated into lying by omission or commission.
The Gaza war was a huge story, of course, and it had to be covered, but it could just as easily have been covered from the Israeli side of the line. Covering both sides of the story is of course preferable whenever possible, but providing balanced coverage from Israel alongside censored coverage from Gaza is a form of journalistic malpractice. Stop it. “
August 10, 2014
This looks like fun
“The Fab Academy is a Digital Fabrication Program directed by Neil Gershenfeld of MIT’s Center For Bits and Atoms and based on MIT’s rapid prototyping course, MAS 863: How to Make (Almost) Anything. The Fab Academy began as an outreach project from the CBA, and has since spread to Fab Labs around the world. The program provides advanced digital fabrication instruction for students through an unique, hands-on curriculum and access to technological tools and resources.”
July 21, 2014
“What you’re looking at is the first direct observation of an atom’s electron orbital — an atom’s actual wave function! To capture the image, researchers utilized a new quantum microscope — an incredible new device that literally allows scientists to gaze into the quantum realm.
An orbital structure is the space in an atom that’s occupied by an electron. But when describing these super-microscopic properties of matter, scientists have had to rely on wave functions — a mathematical way of describing the fuzzy quantum states of particles, namely how they behave in both space and time. Typically, quantum physicists use formulas like the Schrödinger equation to describe these states, often coming up with complex numbers and fancy graphs.
Up until this point, scientists have never been able to actually observe the wave function. Trying to catch a glimpse of an atom’s exact position or the momentum of its lone electron has been like trying to catch a swarm of flies with one hand; direct observations have this nasty way of disrupting quantum coherence. What’s been required to capture a full quantum state is a tool that can statistically average many measurements over time.”