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a3n

11,955 karma · joined March 29, 2013

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a3n··on How the ‘Wandering Meatloaf’ Got Its Rock-Hard Teeth
> The ink hardened as it dried, but its final physical properties depended on how much iron and phosphate were added to the mix. The more that was added, the more nanoparticles formed, and the stiffer and harder the final material became. By tweaking the recipe in this way, the researchers could create objects that were as flexible and rubbery as a squid or as stiff and hard as bone.

> “It should be possible to mix the ink at a ratio that you can change immediately prior to printing,” Dr. Joester said. “And that would allow you to to change the composition, the amount of nanoparticles, and therefore the strength of the material on the fly. Meaning that you can print materials where the strength changes very dramatically over relatively short distances.”

> The technique might be useful in the burgeoning field of soft robotics, allowing engineers to create machines that are hard and stiff in some places and soft and pliable in others, Dr. Joester said: “I think it would be amazing if you could print all of these gradients into the structure.”

a3n··on Employees are quitting instead of giving up working from home
Subjectively, commutes are bad in the US and getting worse, because housing is getting more expensive relative to wages. On top of that, we live in a car culture, and it's much easier to build more freeways and housing developments than figure out how people can sustainably work and live in employment centers.

The pandemic has done some of that figuring out for us.

a3n··on Employees are quitting instead of giving up working from home
> Some have lamented the perils of remote work, saying it diminishes collaboration and company culture.

Collaboration, maybe.

Company culture is not diminished, it's merely changed.

a3n··on “Modern” C++ Lamentations (2018)
I used to write C++ for food. I sometimes get nostalgic, and think I want to regain my C++ chops. Then I see something like this.

Life is too long to write C++ for a living.

a3n··on For sleep apnea, a mouth guard may be a good alternative to CPAP
Fun fact: You can buy cpap parts in some truck stops. Because that's a legally monitored condition for truckers.

Fatigued driving is a killer.

a3n··on For sleep apnea, a mouth guard may be a good alternative to CPAP
It's not a "however," overweight can be a contributing factor for sleep apnea. More soft tissue, more restriction. Weight loss sounds like an excellent first action.
a3n··on Ask HN: How do you regard Ayn Rand?
There was that Simpsons episode. And I've seen a few movie clips. And that's all I know.

People that I've encountered in person that talk about her have been unsettling to me.

In general, I'm wary of popularly held philosophies, their philosophers, and their evangelists. It strikes me as something filling a hole, and anything similar would have done.

Present company excepted, of course.

a3n··on Amazon refused to refund $7k after shipping an empty box instead of a Sony A1
I order electronics from Newegg (which is starting to feel Amazon-like with third parties).

I generally use Amazon as a search engine to see what exists, look at reviews, then buy locally and physically if at all possible. Especially books, after they folded, spindled and mutilated too many books and their replacements.

a3n··on Facebook Still Doesn't Get It–People Care About Their Privacy
Facebook does get it. It just doesn't care about what you care about.
a3n··on Ross Fired a Portland Employee After He Went Viral on TikTok
Yeah. I've worked retail. Day one: "Never touch a customer. If they're stealing a big screen tv, let 'em walk, see where they go, report. Never touch a customer."
a3n··on Ford “Volume knob” is “finger” on set of bearings epoxied directly onto display
"There, I fixed it."
a3n··on Ask HN: What do you make of all the recent UFO stuff?
I doubt they're from other systems. Long time and distance to other habitable (pick your criteria) systems.

If they're from other systems, they're likely uncrewed and fully autonomous. The same thing we may one day attempt, if we make it that long.

Interesting question: What if the goals of their civilization have completely changed since launch? It's likely been a long time.

Will we account for that when we launch?

a3n··on Tesla has activated its in-car camera to monitor drivers using Autopilot
More surveillance that we pay for. A consumer's paradise.
a3n··on Ask HN: How do you move across the country [US]?
Even though you aren't being moved, you could ask the HR of your current or next company who they use or how they find someone.

I was moved in 1996, new job took care of all the details, the movers were fine, it all worked. In 1996.

Today I'm a trucker. Right now practically all shipping companies are overbooked. My company is paying us a "productivity" bonus for increasing number of miles driven. Everyone is buying stuff, and everyone is moving. So it wouldn't surprise me if your stuff gets there late, because unfortunately your shipper (or the broker) doesn't want to leave money on the table merely because they don't have the trucks and drivers. As ugly as that is.

Right now there are many trips that are late for delivery on the day I pick them up. My trips are typically 500 to 1500 miles and take one to three days.

From other threads, do it yourself seems like a good idea. Or maybe just DIY for some of it, and have the rest moved. You may have trouble finding a rental truck exactly when you need it. Because everyone is moving.

The "load it yourself and we'll pick it up and deliver it" solution is good. You can load the container at your leisure. A friend did that, worked out well. Again, around 1996. These also probably have availability issues right now.

a3n··on Ask HN: Do you still use email?
Email preferred. Asynchronous by design and expectation.

I write a lot of long emails, essentially blog posts, about my trucking travels to a small handful of family and friends. Lots of photos inline with commentary.

Most of my other communication is via email, except when I really need my young adult son to read and respond. Then text is more reliable.

a3n··on Ask HN: I (used to) love programming, but I loathe standups, scrum, agile, etc.
Or the transportation industry. I drive a truck, no stand-ups here (yet), but my boss has a daily standup.

The technicians in the shop have a daily standup.

Or the road construction industry. When I'm driving around 8 in the morning I see those guys in a standup.

In a truck stop this morning two of the staff were talking about the upcoming "huddle." Because they're a team, you know.

It's like Invasion of the Body Snatchers.

a3n··on Ask HN: How to Rediscover the Joy of Programming?
I was going to make some suggestions, but I'm kind of with ogwh. Your universe of possibilities is much larger than just programming.

Then you can automate whatever it is you end up doing. :)

a3n··on When a Raindrop Falls in the US, Where Does It End Up?
A random descendant of Genghis Khan drinks it.
a3n··on Children's Hospital Colorado declares mental health state of emergency
I have absolutely no doubt that Colorado and elsewhere needs greater immediate treatment options.

And that the pandemic had contributed to the crisps.

However, the article says this problem had been increasing for years.

What in society causes so many kids to kill themselves? Why is it getting worse? What should be done?

a3n··on Having a successful career with depression, anxiety and imposter syndrome
I rarely look at user names while reading HN. Your comment gave me pause, so I looked at your name. I recognized your name from having done the same thing in the past.

You make me think. I appreciate that.

I hope you come to some arrangement in life that's satisfying and secure for you.

a3n··on U.S. has almost 500k job openings in cybersecurity
Well that oughta get all those waiters and cashiers off unemployment.
a3n··on Homeless Camping Ban Close to Becoming Law in Texas
I wonder what percentage of homeless in places like California are simply "refugees" from places that A) don't provide an environment for marginal people, and B) push them out of town and out of mind.
a3n··on Sixth grader expelled after Zoom provided possibly inaccurate IP address
I suspect there was bureaucratic and personal digging in once the district and its technical staff were challenged.
a3n··on Slimeworld: Epstein jailers off the hook after striking deal
If you expect people to continue to look the other way when asked in the future, you've got to ensure that each one receives minimal punishment in the present.
a3n··on US to ramp up tracking of domestic extremism on social media
Sometimes "Bubba" is in the US Army. And yeah, the US Army is concerned about him.
a3n··on Ask HN: Have you ever needed to invert a binary tree at work?
I asked you to invert a binary tree because I was asked to invert a binary tree. My father was asked to invert a binary tree. My father's father was asked to invert a binary tree.

Charles Babbage asked Ada Lovelace to invert a binary tree before he agreed to let her work on his Analytical Engine.

In his famous resume, Leonardo claimed knowledge of "efficient methods of turning a bifurcated assembly of facts upon itself, and other procedures useful in the arts of arranging and displaying facts."

It's tradition.

https://en.m.wikipedia.org/wiki/Ada_Lovelace

https://duckduckgo.com/?q=resume+of+leonardo+da+vinci&t=fpas...

a3n··on Five Oregon counties vote to leave state, create 'Greater Idaho'
Idaho has a "seaport" already, in Lewiston (across the border from Clarkston WA). You get there by way of the Columbia River and locks. I often haul giant rolls of paper in my semi from the papermill in Lewiston.
a3n··on [dead]
I'm not a young man but I told my son who is now a young adult two things.

A pregnant partner will change your entire path and options forever.

Also, one in five people in America have herpes, and one in five of those people don't know it. If it's not "one in five," it's "some number" significant enough to pay heed.

Those would seem enough to at least slow your roll.

a3n··on Researchers, lawmakers want Facebook's mental health research
When I was a kid in the sixties I got chock-like candy cigarettes in my Christmas stocking, and for Halloween. I remember some were a bit powdery and you could blow on them and simulate smoke.
a3n··on Bette Graham, inventor and founder of Liquid Paper
When I pick up a loaded trailer at a shipper, or after they load an empty trailer that I brought, they give me a bill of lading, paperwork that I eventually give to the receiver, and present to law enforcement if necessary.

The BoL includes details about the freight, from/to parties, the carrier (me), etc. And the serial number of the trailer seal.

Sometimes I notice that the number on the seal doesn't match the paper work. I take the paperwork to the shipping office. They either print out corrected paperwork, or they use whiteout (or Liquid Paper) to cover the incorrect number and write in the correct one.

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