jadero

@jadero@mander.xyz

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New England stone walls deserve a science of their own (phys.org)

The abandoned fieldstone walls of New England are every bit as iconic to the region as lobster pots, town greens, sap buckets and fall foliage. They seem to be everywhere—a latticework of dry, lichen-crusted stone ridges separating a patchwork of otherwise moist soils....

jadero,

I used to get occasional work helping farm kids pick rocks. We don’t seem to have built any fences in Saskatchewan, preferring instead to just pile them up or bury them.

Never underestimate what happens when thousands of individual people do one thing over and over again, rock by rock, step by step, day in and day out, year after year. Whether it’s building fences, depleting resources, or putting waste into the environment, we always manage to more collectively than we can imagine as individuals.

jadero,

This is my first exposure to a plain text Venn diagram. Genius.

jadero, (edited )

I think for maximum uselessness, they should not be overlapping spheres, but deform at the interface, like soap bubbles or rubber balls. As long as the spheres are the same size and modelled with the same “surface tension” or “elasticity”, the “intersection” of two sets would then be a circular interface with an area proportional to what would otherwise be an overlap (I think). If the spheres have different sizes or are modelled with different surface tension or elasticity, one would “intrude” into the other.

Multiple sets would have increasingly complex shapes that may or not also create volumes external to the deformed spheres but still surrounded by the various interfaces.

Time to break out the mathematics of bubbles and foam. This data ain’t gonna obscure itself!

Might there actually be utility to something like this? Scrunch the spheres together but make invisible everything that is not an interface and label the faces accordingly. I suppose the same could be said of the shape described by overlapping. (Jesus, you’d think I was high or something. Just riffing.)

jadero,

That’s what 3D printing is for…

jadero,

No, that’s not what I was thinking, but that sounds like a decent idea. Maybe a better idea than just simple labels representing the facing sphere.

jadero,

I read that as:

For decades, Nestle has been patenting milk proteins.

They’ve been doing it for a long time, not somehow getting extra-long patents.

jadero,

My favourite is the idea that it takes time to build out the “infrastructure” that allows for life. Basically, no supernovae, no life, not enough supernovae, extremely low probability of life. Even if that doesn’t put Earth’s life near the leading edge, we may be on the leading edge of technological civilizations.

jadero,

Are you serious? They really have what amounts to an exoskeleton? Or maybe it’s more accurate to call it a whole-body rib cage?

Just searched and found this fun article. Not really a skeleton but a collection of really stiff hairs or feathers (loosely: the genes are the same ones responsible for “other skin appendages” in vertebrates).

jadero,

Interesting. That page says “few vertebrae”, but the image makes it look to me like a full set.

On the other hand, if I found an animal with no ribs and pelvis and only the rudimentary limbs typically found in fish, I’d tend to say that the skeleton was missing. Or at least, ahem, skeletal.

Thanks. My first impression was that there was some funny business, but then I found what I thought was a decent article.

jadero,

All great things start in a bar. Or coffee shop. Or in the shower. Or in a dream. But never in a meeting.

jadero,

All roads lead to PIE. Or is that from? Oh, and maybe not “all.”

But seriously, I went through a linguistics phase in my reading and came away with the sense that Proto Indo European is a lot closer to us than it seems at first glance.

jadero,

New word! Thanks.

I made a half-assed guess as to its meaning based on the fact that I’ve heard of an elite basketball player by that name. I got pretty close, according to urban dictionary.

jadero,

I used to teach Excel at an adult vocational college. When I moved into the corporate world, I quickly learned why the University of Hawaii’s research found that well over half of spreadsheets have critical errors. Even the people treated as Excel experts were often clueless.

I’m not saying that spreadsheets should be banned from the workplace, but they definitely need to be very tightly controlled.

Oh, and always, always lock formula cells, even in sheets that never leave your control. :) If possible, make use of Excel’s native data forms, too.

jadero,

Gotta lock those cells, even when the sheet never leaves your control.

jadero,

There word “sticks” is being used in the sense “adheres”. So the “coo” doesn’t bounce around in a series of reflections, but instead remains attached to the first surface it strikes.

jadero,

I sympathize. I’ve been caught out a couple of times by depending on autotldr as a substitute for reading the actual article. My own casual comparisons between autotldr and source articles suggest that autotldr is probably about 80% faithful to its source, on average.

I don’t know if it’s real or in my own mind, but it also seems to me that autotldr is faithful to the article inversely proportional to the quality of its source material. That is, the better and more complete the article, the more likely it is that autotldr trashes it.

Now that I’ve written it down, it strikes me that that may be an insurmountable problem. If we think of good articles as being “high information” and garbage articles as “low information”, summarizing will always be more likely to cause important “damage” the higher the information content. Thus, hitting 95% on a good article might trash it, while hitting 60% on a trash article is just fine. This might be especially true if you consider that the best articles might already be as compact as is reasonable.

jadero,

That, too! I’ve taken to using any autotldr as a substitute for a “proper” title and author summary. If the autotldr looks like there might be based on something I find interesting, I’ll go read the article.

jadero,

And Canada, but we’re really messed up. Most people I know across multiple generations use Fahrenheit for indoor temperature, cooking, and water you might swim in. Celsius is for outdoor air temperature, mostly, I think, because that’s how weather is reported. There is a fair amount of variation, but I don’t think I’ve heard anyone using Celsius for cooking.

jadero,

What is this stop business? I have it on good authority that it’s turtles all the way down.

jadero, (edited )

(looks around)

I thought we did.

jadero,

Yes, but it’s important to remember that a much (most?) of that work was performed by those with hereditary wealth, under the patronage of those with hereditary wealth, under the patronage of the church, or by clergy who had plenty of free time beyond their duties and no separate need to earn income for housing and food. In fact, one reason to enter the clergy was to gain access to the resources to pursue other activities.

jadero,

Off the top of my head, I can’t think of any advance that didn’t at some point depend on people just dicking around to see what they could see.

“What happens if we spin this stick really really fast against this other stick?”

“Cool! What happens if we put some dried moss around it?”

“That’s nuts, man! Hey, I wonder what happens if we toss some of our leftovers in there?”

“C’mon over here, guys. You gotta taste this!”

At worst, a project like this keeps a lot of curious people in one place where we can make sure they don’t cause harm with their explorations. At best, whole new industries are founded. Never forget that modern electronics would never have existed without Einstein and Bohr arguing over the behaviour of subatomic particles.

Say the actual construction cost is $100 billion over 10 years and operational costs are $1 billion a year. Compared to all the stupid and useless stuff we already spend money on, that’s little more than pocket lint. We could extract that much from the spending of one military alliance and it would look like a rounding error. Hell, we could add one cent to the price of each litre of soft drinks, alcoholic beverages, and bottled water and have money left over.

jadero,

Yes, with finite resources, we have to make choices. As long as there are some resources for people to just poke around, I’m good with whatever. If we’re actually looking for some place to drop a few billion, I actually don’t think another collider should be on the list, let alone at the top.

The problem as I see it is that “but what good is it” is used to limit pretty much all fundamental research.

jadero, (edited )

I also think there are better places to put this kind of money, including on projects that we are certain have obvious potential to change the world for the better.

What I was getting at was the very idea that we absolutely have to know what the return is before we start. Just because we know the potential return doesn’t mean that it’s not research (as in your fusion example), but just because we can’t identify a return ahead of time doesn’t mean there won’t be one.

Also, I don’t know if there have been any tangible benefits from the LHC. Precision manufacturing? Improvements in large-scale, multi-jurisdiction project management? Data analytics techniques? More efficient superconducting magnets? I don’t know if those are actual side effects of the project and, if they are, I don’t know that the LHC was the only way to get them.

Edit: or, like the quantum physics underlying our electronics, maybe we won’t know for 50-100 years just how important that proof was.

jadero,

As a non-geologist living next to Lake Diefenbaker (the reservoir formed by damming the South Saskatchewan River), I also like geological history.

I have a standard reply for when I’m asked why we chose to move to this “treeless wasteland”. “I look out at the flat horizon and see how the glaciers planed the earth the way a woodworker flattens a board. I look around me at the river breaks and see how the meltwater from retreating glaciers carved the earth away into shapes that defy imagination.” I don’t know accurate any of that is, but it fits my mental model of what I was taught in high school.

(What we call the river breaks are twisted and braided networks of coulees, some with sides so steep as to require mountaineering equipment. Most still run with meltwater in the spring.)

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