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Author: matt

The relationship between Computing and its history is that of a willful amnesiac.

The relationship between Computing and its history is that of a willful amnesiac.

“[…] pop culture holds a disdain for history. Pop culture is all about identity and feeling like you’re participating. It has nothing to do with cooperation, the past or the future—it’s living in the present. I think the same is true of most people who write code for money. They have no idea where [their culture came from]—and the Internet was done so well that most people think of it as a natural resource like the Pacific Ocean, rather than something that was man-made.

—Alan Kay, on Computing, Dr. Dobb’s Interview with Alan Kay 2012

No Country for Old Men

No Country for Old Men

Driver: “I hope you’re right.”

Moss: “Trust me”, Moss said.

Driver: “I hate hearin them words”, the driver said. “I always did.”

Moss: “Have you ever said them?”

Driver: “Yeah. I’ve said em. That’s how come I know what they’re worth.”

Local Portland muckraking

Local Portland muckraking

Recalibrate Portland does a decent job being a voice that calls Portland, and Trump’s, BS what it is. In a radically polarized city that feels it must toe the party line blindly, it’s nice to see someone that apparently doesn’t mind calling out the idiots on any side when they start lying or distorting the truth. That’s something I can get behind.

Sine-wave speech auditory illusion

Sine-wave speech auditory illusion

Chris Darwin was doing a research paper on speech perception and discovered something interesting. He distorted recordings of people speaking based on specific pattern matching properties of speech, and then played them back for people to see if they could understand what was said.

At first, it sounds like distorted tones and bleeps. But after you listen to the original version – your mind seems to be able to hear the speech clearly on the second playthrough. It turns out the brain’s prediction/learning knows better what to expect, and applies that without the listener being consciously aware.

If one listens to enough different SWS samples, some begin to gain the ability to understand the SWS versions without having to be exposed to the originals.

Go here for details on SWS as well as to the (free) Praat software that Darwin used to create the samples. [Hackaday]

A little longer examination:

Solar Panel installation review

Solar Panel installation review

Local user brrent reviews putting solar panels on his house and gets a good discussion going on the process, pros and cons.

Summary:

  1. There are a lot of crummy installers out there with slimy salesman. Out of 6, only 2 even passed the sniff test
  2. Total out of pocket cost was $30,925 – but about $20k after rebates.
  3. Seriously consider doing this when you need to get a new roof. You don’t want to install and then find you need to rip it up to put down a new roof in 5 years. A roof lasts 30 years and panels last 30 years, so it’s good to have them in sync.
  4. Don’t go with any installer that doesn’t use Enphase micro inverters. A micro inverter makes each panel operate independently from the array. Without them, if one panel is shaded, the whole array is impacted.
  5. A lot of companies will assume crazy electricity price hikes, I’m assuming 4-5% annual increases, and the companies that felt the most honest also used those figures for their payback period. On that assumption, payback is ~10 years.