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lilgreenland

557 karma · joined February 15, 2016

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lilgreenland··on Two Concepts of Intelligence
I don't see a reason to separate training when we evaluate AI intelligence.
lilgreenland··on The space of minds
What about evolutionary intelligence optimization pressure?

Genetic algorithms are smart enough to make life. It seems like genetic algorithms don't care how complex a task is since it doesn't have to "understand" how its solutions work. But it also can't make predictions. It just has to run experiments and see the results.

lilgreenland··on Red algae proteins grafted into tobacco double plant growth
plant growth is not doubled yet, but this is still really neat.

“We’re not at the point where we’re outperforming wild-type tobacco, but we’re on the right trajectory,” Gunn said. “We only need fairly modest improvements to Rubisco performance, because even a very small increase over a whole growing season can lead to massive changes in plant growth and yield, and the potential applications span many sectors: higher agricultural production; more efficient and affordable biofuel production; carbon sequestration approaches; and artificial energy possibilities.”

lilgreenland··on The first room-temperature ambient-pressure superconductor?
hmmm. This is what you are talking about. https://youtu.be/TlD12QObooc?t=420
lilgreenland··on The first room-temperature ambient-pressure superconductor?
Well after seeing the second video I'm pretty convinced it's superconductive or a good scam. The effect was probably just not strong enough in the first video.
lilgreenland··on The first room-temperature ambient-pressure superconductor?
well that one looks great. Maybe in the original video a superconductive effect was there, but not strong enough to frame lock. But you can see it in the newer video.
lilgreenland··on The first room-temperature ambient-pressure superconductor?
When does the hanging copper maintain a position in the video? https://www.youtube.com/watch?v=EtVjGWpbE7k

All I see is the normal dampening and dragging effects that I show in my physics classroom.

lilgreenland··on The first room-temperature ambient-pressure superconductor?
And I think that's what we are seeing in the video. The eddy current effect isn't permanent like in superconductivity. They have to keep moving the magnet around.
lilgreenland··on The first room-temperature ambient-pressure superconductor?
Isn't this how copper already works without superconductivity? https://www.youtube.com/watch?v=sENgdSF8ppA
lilgreenland··on The first room-temperature ambient-pressure superconductor?
Copper does this already. It's not like ferromagnets. https://www.youtube.com/watch?v=sENgdSF8ppA
lilgreenland··on The first room-temperature ambient-pressure superconductor?
Well normal copper does this in presence of a strong magnet. I don't think we are seeing superconductivity, just regular copper Meissner effect. Super conductive would frame lock the copper. right?
lilgreenland··on A new experiment casts doubt on the leading theory of the nucleus
They also go wrong with large scale phenomena like inflation, dark matter, and dark energy.
lilgreenland··on The fastest math typesetting library for the web
what is the advantage of tikz over SVG?
lilgreenland··on Remaking old computer graphics with AI image generation
midJourney lets you upload a reference image. For a portrait of someone's face this produces consistently the same person.
lilgreenland··on GIMP Turns 27
I have a 2 year old desktop apple computer and GIMP gets about 2 fps for simple tasks like using the pencil to draw. (maybe it's better on linux or PC)
lilgreenland··on Do fungi lurking inside cancers speed their growth?
quora says animals https://www.quora.com/Which-evolved-first-plants-or-animals
lilgreenland··on Heavier cars are safer for their drivers, but far deadlier for everyone else
Braking distance isn't a function of mass. Turns out the momentum from higher mass and the increased friction from higher mass balance exactly.

I should say this is true for the physics of sliding friction forces, which aren't super precise.

lilgreenland··on Optical Illusions of the Year
http://illusionoftheyear.com/ is unresponsive for me.
lilgreenland··on Free online textbooks work
I haven't much upkeep or compatibility issues. There are a few people that have started working on translations. I imagine they might need some help. In general though, it's a simple site with no server communication, running on github pages, with almost no libraries.

I use the site for my own students when I teach physics, and they catch a few typos and bugs each semester.

lilgreenland··on Free online textbooks work
It's important that digital textbooks are more than a pdf of the pages found in a traditional textbook. You can do so much more with an explorable interactive experience.

I shared my attempt at this on Hacker News a few years ago.

https://landgreen.github.io/physics/index.html

https://news.ycombinator.com/item?id=17178031

lilgreenland··on Coca-Cola Begins Introduction of Attached Caps
My understanding is that plastic is almost never recycled in America. Does Australia actually have a working plastic recycling system?
lilgreenland··on Can we make a black hole? And if we could, what could we do with it?
Mass and energy are same thing. They effect gravitational pull the same. If you compressed the Earth the energy it takes to compress the Earth would increase the mass-energy of the Earth, and this would change the orbits of planets.
lilgreenland··on I hate what video games have become
The indie game scene is still pretty great. Tunic just came out last week. It's super fun and basically a single dev.

I wrote my own free open source browser game. https://landgreen.github.io/sidescroller/

"N-gon is a physics-based single player 2-d platformer shooter with hundreds of different power ups. You move with the keyboard and aim with the mouse. The core game is done, but I'm still adding new content.

You can play here for free. It's open source, no ads, no tracking, no data harvesting, no crypto-mining, no DLCs, no freemium, no microtransactions, no gacha."

lilgreenland··on Juul bought an entire issue of a scholarly journal
A law in science isn't used the same as how you are using the word. A law isn't a really good theory. Laws are mathematical predictions based on data collected.

Often it's just an equation that fits some data for a range of values.

Almost all laws are found in the physical sciences. Some examples are: Ohm's Law, Universal Gravitation, Coulomb's law, and Kirchhoff's laws. None of these are perfect descriptions of reality.

lilgreenland··on The Future of Games is an Instant Flash to the past
I'm secretly hoping for this type of success for my game. Realistically, I'm just glad I have a creative outlet.

https://landgreen.github.io/sidescroller/index.html

It's also free, open source, no ads, no micro-transactions, web based, no freemium, no data harvesting, no gacha, no crypto harvesting.

lilgreenland··on Accessing device orientation in pure JavaScript
hmmmm firefox is missing this API as well
lilgreenland··on Is light fundamentally a wave or a particle?
Is nature made of waves or particles? The annoying answer is neither. The wave model and the particle model are approximations of nature that are each accurate for different conditions.

Quantum field theory describes reality with wave functions. In this theory there is a field for each type of fundamental particle spread across all of space and time. Regions of a field can evolve into a localized excited state. Particles are a useful mathematical approximation of these excited states.

For example, an electron is a region where the electron field has more amplitude, or bigger ripples. The electron field exists everywhere, but electrons are more likely to be measured where the field amplitude is larger.

Fields interact with other fields, and with themselves. These interactions can be approximated with a Feynman diagram, which treats everything as particles.

Using Feynman diagrams electron field interactions generally model well as particles. This is because the most complex electron interactions are weak enough to be mathematically canceled out. Quarks, the particles inside protons and neutrons, interact through the "strong force". This force has frequent complex interactions that don't cancel out, making the particle model less useful for calculations.

lilgreenland··on Why a land-value tax is inevitable
This is a really good example of the slippery slope logical fallacy. https://en.wikipedia.org/wiki/Slippery_slope
lilgreenland··on Study reveals restoration of retinal and visual function following gene therapy
I'd like to see how they run with these new eyes.
lilgreenland··on Gravity is not a force – free-fall parabolas are straight lines in spacetime
my visualization of this view: https://landgreen.github.io/physics/notes/relativity/general...
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