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Ivan Jager
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Ivan Jager

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How a textbook example of an engineering failure—and the famous video that captured it—got twisted.
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I thought (from the Motherboard article, not the paper) that 1Hz was the resonance frequency of the vertical mode, but it was being forced at 0.6Hz, which would imply the initial vortex shedding was at 0.6Hz.

In the explanation of flutter for aircraft, it is said that it is necessary for two modes to become coupled.  I'm proposing something similar is necessary to explain the bridge.  It would still increase monotonically with wind speed, if it was true flutter, so would not be a resonance phenomenon.

My original comment was maybe unclear but it seems the torsion was forced to 0.2Hz, and 0.6Hz and 1Hz are both integer multiples of that.  I proposed one or more of these became coupled.  Possibility 1: coupling to 0.6Hz.  Since that was presumably supplied externally, this could be called resonance.  This seems unlikely though due to the evolving aerodynamic profile once torsion starts (i.e. there would no longer be a 0.6Hz input).  Possibility 2: coupling to 1Hz.  This sounds more like the aircraft version, and would increase with increasing wind speed.

I should probably read one of the papers.
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Ivan Jager

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Yey, rocket landed without blowing up!

Hopefully this becomes almost as commonplace as rockets making it into orbit without blowing up.
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Ivan Jager

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I'm an asshole cyclist. I'm that jerk weaving in and out of traffic, going the wrong way down a one-way street, and making a left on red. I'm truly a menace on the road. But it’s not because I’m on a bike—I'm an asshole on the road no matter what. I’m also...
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Ivan Jager

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What is this critter?

I went outside because I thought I heard something on the roof, but there was nothing. I found some tunnels that looked like what a mole would make. (Basically, raised grass and dirt that compresses back down when you step on it.) Then, as I was heading back into the house I noticed this critter. At the time, I assumed it had made the tunnels, but I'm not actually sure. Is it a groundhog? It is slightly smaller than a cat.

I got these pictures of it with my phone, then went inside to grab a real camera (so I could zoom rather than crop) but when I opened the door it ran away.

FWIW, it seems to believe in the strategy of "if I'm not moving you can't see me", and it seemed to be carrying that piece of vegetation in it's mouth without eating it.
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Groundhogs are in the squirrel family, so if you have scrawny squirrels it makes sense that you'd have scrawny groundhogs.
(https://en.wikipedia.org/wiki/Marmot)
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Ivan Jager

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This is why I laugh when people say the local hard drive will always be faster than hitting the network.

Also, it's nice to see more of these "secrets" going officially public.
 
Today at the Open Network Summit we showed how we've been running our datacenter networks for the past decade.  (For full details you'll have to wait for a paper we'll publish at SIGCOMM 2015 in August.)  

Great networking has long been a key ingredient in having a great cloud platform, and of course you get to use these same networks on +Google Cloud Platform. 
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Kinda like a snoop of another processor's cache is faster than hitting main memory... odd how that parallels isn't it?
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Ivan Jager

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This is what happens when you go too crazy with ads...

15 MB of ads on one page? On a cheap prepaid plan (10c/MB) that's $1.50 worth of bandwidth, for how much revenue in ads?
Two tests were carried out with ad blockers: one to measure how much loading times were improved and the second to study battery life.
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Personally, I've taken to not viewing sites that take very long to load. Video ads on a website with entirely text content are incredibly frustrating. Fundamentally what I want to see is kilobytes of data, and you are sending me megabytes of crap along with it.
Something they miss here is that the site is already bloated by 100x or even 1000x by pointless javascript, sidescroll features and other useless garbage that has nothing to do with the content. As an example, look at the new york times article itself.
Even more importantly a number of the advertising distributors are slow. So, in practice you get load times far worse what you would predict based purely on the size of the content, because the advertisement is slower to download than the rest of the webpage.
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For a while now, I've been wondering who will end up being responsible for self-driving car accidents. It's good to see Volvo is at least willing to take responsibility for their programming errors rather than blaming it on the consumer. Hopefully others will follow suit, and legislators will make exceptions to the insurance requirements.

To me at least, it would seems silly to blame an accident on the person who got in the car and said, "take me home", rather than the company that was careless (or took shortcuts) when programming it. 

I know self-driving cars will probably cost more, but hopefully the improved safety and resulting savings on insurance will make them more economical. I mean, I do enjoy driving, but I'd be willing to give up driving on public roads if it would solve our traffic problems. (Both congestion as well as mortality.)
Volvo says it will be 'one of the first' firms to take full responsibility for accidents involving driverless cars.
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What are these? It looks like something ate some of them. Sorry I couldn't get any leaf pictures because all that remained of the plant was a dryish brown stem and red berries.

Seen in Turville Point Conservation Park, Madison, WI.
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How high off the ground are these fruit clusters found?  Are they all found in a grouping?
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I'd just like to point out that it's been nearly 147 years since the law was passed, and people are still celebrating / bitterly angry.
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I had been trying to describe Yvapurũ to some people, but had forgotten what they were called. This is the grape-like fruit that grows on tree trunks/branches.
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+Matthew Brewer Actually, there's a chance they do and I thought it was different because they used a different name. If they do have one, I'm pretty sure I didn't see it fruiting.
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Ivan Jager

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This is the best build system I've ever used. Now it is free.
 
This tool is amazing at Google. You want it for your personal projects.
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Public - a month ago
reviewed a month ago
It's a bit of a drive, but this is the best popcorn I've had. The price is not bad either, at least if you pop it yourself.
Public - 3 months ago
reviewed 3 months ago
This is not a Citizens Bank any more, and they were too lazy to update their map information.
Public - 10 months ago
reviewed 10 months ago
I drove all the way there after talking on the phone with them to make sure they could put my used tires on used rims, but when I got there they refused to do it.
Public - a year ago
reviewed a year ago
9 reviews
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I got some fresh corn here. It was very tasty.
Public - 5 months ago
reviewed 5 months ago
Really good Mac & Cheese with stuff on it.
Public - a year ago
reviewed a year ago
The hamburger and flank steak are great. I didn't care much for the tuna filet though.
Public - a year ago
reviewed a year ago