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17/12/23 this masterlist has been completely, vetted, revamped and reformatted with free access to all reading and viewing material. It will be updated and edited periodically so please try and reblog the original post if you're able.

The Big Damn List Of Stuff They Said You Didn't Know

(Yes, it's a lot. Just choose your preferred medium and then pick one.)

Podcasts

Backgrounders and Quick Facts

Interactive Maps

Teach-Out Resources

Reading Material (free)

Films and Documentaries (free)

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Social Media

How You Can Help

Podcasts

Listen to this episode from Cocktails & Capitalism on Spotify. Continuing the story of Palestine, Leeh outlines the Great Arab Revolt and th

Cocktails & Capitalism: The Story of Palestine Part 1, Part 3

It Could Happen Here: The Cheapest Land is Bought with Blood, Part 2, The Balfour Declaration

Citations Needed: Media narratives and consent manufacturing around Israel-Palestine and the Gaza Siege

The Deprogram: Free Palestine, ft. decolonizatepalestine.com.

Backgrounders and Quick Facts

Welcome to Decolonize Palestine, a collection of resources for anyone who wants to learn more about Palestine.

The Palestine Academy: Palestine 101

Institute for Middle East Understanding: Explainers and Quick Facts

ichigoflavor-deactivated2024042

the-devil-wears-zara

thememedaddy

the-final-sif

So! This is a perfect case study in situations where you should be wary of misinformation.

Take a moment and ask yourself, a project like this requires a lot of time, money and dedication of resources, why would scientists dedicate that time to something that could just be done by a tree?

The answer is they wouldn't. So that means this claim requires further investigation!

This project is called LIQUID 3, and it's not meant for cities with wide open spaces, it's meant for cities like Belgrade in Serbia. These cities are densely populated and heavily polluted, to the point where pollution actually chokes out current trees and makes creating green spaces difficult.

Liquid 3 was a PhD scientists answer to these problems. The microalgae tank is intended for spaces where you either:

Don't have enough space to plant full trees, or

Don't have enough time to plant trees and wait for them to grow up.

The tank is extremely efficient when you consider the amount of space needed compared to the amount of CO2 turned into oxygen. The tank can operate throughout the winter. And most importantly, it can be quickly set up in areas that desperately need relief from air pollution NOW not in 10 years when trees are done growing. Children currently suffocating on polluted air can't wait for trees to grow, they need to be taken care of now, and Liquid 3 is one of the ways to take care of them. Depending on the species of microalgea used, a number have shown a pretty amazing capacity to pull heavy metals out of the air which is something trees can get choked up by.

The tanks aren't just tanks either! Liquid 3 have solar panels placed on top, they have lighting and mobile phone charging, and they work as public benches. The designers of it want to encourage green spaces where there's room, but where there isn't room or time, Liquid 3 can step in. Realistically, this isn't a replacement for trees. It's replacing boring metal city benches with new, cooler benches that also clean the air (and have at least some heating during the winter).

Not only that, but the microalgea that grows is native to Serbia and all that microalgea has a ton of great uses! It makes for great fertilizer, compost, wastewater treatment, cleaner biofuels and even for helping create new tanks for further air purification. They only require a quick algae divide once a month, and the produced algae can be carted off to where ever it's needed. This makes them effective solutions for areas that can't sustain complex installations.

So yeah, there's actually quite a lot of places that would like these. Lots of people currently breathing in terrible quality air would much rather have their boring city benches replaced with really fucking cool algae tanks that clean the air and can be used to help create + sustain future green spaces in cities. I dunno about you, but I'd take that over a dumb metal bench any day. Put these at every bus stop and I'd be delighted.

acecroft

Rusty-spotted cat | World’s smallest cat

lindamarieansonsnaps

probablyasocialecologist

“When the land gets abandoned, the grasses are the first invaders. All you need is a little drought to have a flammable landscape.”

Research by Clay Trauernicht, a fire specialist at the University of Hawaii, and others has shown that the scale and frequency of wildfires have been increasing across in Hawaii from the early 1900s to the 2010s. The researchers also identified a major culprit: non-native plants. “Wildfires were most frequent in developed areas, but most areas burned occurred in dry non-native grasslands and shrublands that currently compose 24 percent of Hawaii’s total land cover,” the researchers wrote. “These grass-dominated landscapes allow wildfires to propagate rapidly.” The non-native grasses were brought to Hawaii by cattle ranchers in the 19th century, University of California Santa Barbara ecologist Carla D’Antonio told me. “They were selected because they were drought tolerant.” They are also invasive. The abandoned sugar and pineapple farms across the state are quickly taken over by non-native grasses. “When the land gets abandoned, the grasses are the first invaders. All you need is a little drought to have a flammable landscape.” Maui is currently in a drought. The grasses are an especially potent fuel, D'Antonio explained, because they grow quickly when it rains and then stick around, deeply rooted into the soil, as dry, dead organic matter, becoming a “standing layer of very ignitable fuel.” Then after a fire, these non-native plants tend to do better than native ones, thus increasing future fire risk. Fire “has generally been shown to decrease the abundance of native woody plants because nonnative, invasive, fire-adapted plants out-compete natives for resources in the post-fire environment and tend to dominate post-fire communities,” according to a United States Forest Service review.

thethingonvhs1982

The wildfires in Maui aren't natural disasters, they are colonial disasters and a direct result of both the fossil fuel industry and the military industrial complex.

Realtors preying on property in Lahaina- while Kānaka Maoli who resided there for generations are now houseless- is a result of greed and disaster capitalism.

Citizen journalists on the ground are reporting on the devastating cost these fires have on their communities and the untold stories in the media about the tourists still actively extracting land and from already limited resources.

pics by slowfactory on ig

HAPA Hawaii support link

Stop Maui land grabs petition

thethingonvhs1982

Theres a lot of notes but more ppl need to sign the petition

tea-with-mrs-mourning-dove

nzhode

ani-baatewanoon iniw gitigaanensan

#ojibwemowin #ojibwa #Ojibwe #Anishinaabemowin #anishinaabe #linguistics #language #endangered language

terrible-eel

I may be too stressed to articulate this clearly but I am going to try.

While Hawai'i and Maui are trending I'm going to share this link. Its a FAQ about Hawai'i's statehood and the situation Hawai'i is in at the moment. There are people who want to be part of the U.S in Hawai'i and there are people who don't, but the people of Hawai'i were never, at any point, given an option to choose.

If you want to help Hawai'i and it's people but can't donate, spread this word. Help educate people. Make Hawai'i as the tropical paradise be replaced with the sovereign nation stolen by the u.s.

It is subtropical, meaning it is much more vulnerable to arid climates caused by climate change.

It has been systematically stripped of its native food harvesting practices and any ability to farm and self sustain. It has been systematically stripped of its previous industries. Maui used to export milk and cattle. That's all been taken away.

The islands since the 1800s were exploited as plantations, burning sugar cane and growing pineapples which are not native, diverting the water and depleting the water table.

Lahaina burned because of these practices. Because the native people were no longer allowed to govern their lands.

We as local people know that tourism is bad because this systematic destruction has happened in living memory. Within my grandparent's lifetimes, within my lifetime. I have watched this island crumble at the hands of mainland startups, hoping to take people on whale watching tours that cut the whales with their boats while people aren't allowed to have a ferry between islands. People create ziplines and tours through lands that used to belong to local people for farming and cattle. Now they're bought out for photos and hikes the local people can never afford. Hundreds of jobs have been lost in the past thirty years. Mass migrations to the mainland have been made by local people, myself included because we can no longer afford to stay on the island where we were born. Working three jobs is not enough to cover the rent because the houses are bought up by mainland people who then turn these houses into vacation rentals and charge hundreds a night. Right now these very homes are being paid for by the government so that Lahaina people have somewhere to stay and it's costing the state millions that people in the mainland are reeping.

People ask why tourism is bad. Because there are people alive today on Maui that have watched the foreign industries destroy everything. Because people alive today know what used to be and knew how to take care of the ecosystem so that this kind of calamity didn't happen. Lahaina was not just fertile. They had canals and waterways. Rivers that they would drive boats through to go from one part of town to another. It was more like Venice than this desert you see in pictures.

And do your own research. The information is out there. There are two Hawai'i's. The one you see as a tourist, and the REAL one. The one we need to protect.

Let Hawaiians have their land back. Let them restore the water to the land so we can prevent further catastrophe. Tell people about REAL Hawaii.

Frequently Asked Questions about Hawaii and the movement to re-establish independence.

max1461

Somebody explain to me why quantum gravity is a problem. Like in a meta-way because I don't know particle physics. Is it like, they can't find a theory that works, or they have lots of theories but can't test them, or what?

official-kircheis

bro I already did

@max1461 Fair enough, and I’ve heard something like this before, but my real question is: I though incompatibility with relativity had to d

max1461

Oh, right, yes I remember this now. I think that I understood parts of it but it didn't come together into a coherent whole. Let me try again now that I know what force is and so on.

max1461

Right: where do the counterterms come from? Like what restrictions are there on what they can be? Obviously you can't just add any old random shit to the integrand to get an integral that converges.

official-kircheis

you don't add shit to the integrand directly, you add shit to the Lagrangian that generates the integrals. but like, it's way easier to talk about it in diagram terms. diagrams are just better notation for the types of integrands that you have and the operations you do on them. the Feynman rules for translating a diagram into standard notation are basically: at every vertex there is a factor of the electron charge e and a matrix called \gamma^\mu, every line is associated with a 4-vector momentum p and factor 1/p^2 (squiggly line) or p/(p^2-m^2) (straight line), the momenta at any vertex add up to 0. lines that only go to one vertex and their momenta are called external, you integrate over all internal momenta that are not fixed by the external momenta. and then there are some factors of i and 1/(2pi) that we don't need to care about now.

so QED is all the diagrams you can build from the basic vertex on the left. and because each vertex carries a factor e this gives you anything you want to calculate as a series in e, the charge. if you want it to fifth order you draw all the relevant diagrams with no more than five vertices. the problematic diagrams are the ones that look like the three in the middle, where the gray blob means fill it in however you want e.g. like on the right.

so the basic vertex on the left is just ie\gamma^\mu, and the photon vacuum polarisation, the ~O~ diagram, is, up to i:s and (2pi):s

\Pi_{ij}(q) = e^2 \int d^4p p_i/p^2 (p_j+q_j) /(q+p)^2 + O(e^4)

now the counterterms come from using the basic vertex on the left, and the vertices obtained by contracting the gray blobs in the problematic diagrams to points. so like this

each has an associated "renormalisation constant", d_1, d_2, d_3. so the top one is just d_1/p^2, the middle is d_2 p/(p^2-m^2), the bottom is d_3 ie\gamma^\mu. these are all things we had from before. so they will generate integrands with the right form to cancel the divergences, and we can choose the d_i to also get the right coefficients.

note that \Pi_{ij}(q) has a leading term of order e^2, containing a divergence. we can cancel the O(e^2) divergence by giving d_1 an O(e^2) term. it has to depend on q, because P_{ij} does! now the O(e^0) terms in d_1, d_2 have no physical consequence (they just have to do with wavefunction normalisation). the O(e^0) term in d_3 just modifies e, so it's absorbed into the normalisation of charge. we can pin it all down fully by saying e = what we measure, d_3 = 0 + Z(q) e^2 and Z(q=0) = 0 -- the last part is the renormalisation condition.

so the counterterms at O(e^2), killing all O(e^2) divergences can be uniquely determined by information at O(e^0) plus one renormalisation condition ≈ boundary condition. we can make uniquely determined physical predictions to O(e^2). what about O(e^4)? for consistency, we should draw the diagrams for P_{ij} allowing counterterm vertices. so the O(e^2) values of the d_i feed into the O(e^4) divergences, determining the O(e^4) values of the d_i, and so on, order by order.

there are two remarkable things here. first, you can't just disregard the ~O~ diagram completely. we only cancel a divergent part of it, but there is a finite part left over. it is physical! it is the Lamb shift. according to Weinberg in the 50s before this was fully figured out the saying was "just because something is infinite doesn't mean it's zero!"

the second thing is because the d_i also multiply the convergent parts of the integrals... the O(e^2) counterterms also modify the O(e^4) physical predictions of the theory. but because the counterterms have forms like things already in the theory, they do so in a form that can be summed up with e depending on the momenta. so the charge of an electron, in a precise sense, depends on the energy at which you measure it!

now you can ask isn't it weird to treat the original theory and the counterterms differently, and it is. so the more "modern" (70s, lol) viewpoint is: you should from the beginning put in your theory all the vertices consistent with its symmetries, let the couplings associated with each depend on energy, and determine that energy-dependence by (1) choosing initial values (a boundary condition) and (2) eliminating all divergences order by order. this is called renormalisation.

there's always an infinite number of possible vertices allowed, but you want a finite number of initial values to get a predictive theory. the way to square this circle is to find theories where if only a finite number of couplings are non-zero at zero energy, then that is also the case at all energies. this is what happened for QED. in principle, the renormalisation of each coupling depends on every coupling. but in QED if the basic vertex is the only one with a non-zero zero-energy coupling it doesn't take the others away from zero. and in diagram term it's because the finite number of primitively divergent diagrams reduce back to the same coupling. the weak and strong interactions are the same but it's like, a finite set of couplings that only "talk to" each other because the diagrams can all be reduced down to one of them. in gravity that doesn't happen.

#i fucking live physics #i wish I could understand this post fr

wakeningwoods

via

nzhode

Aniibiishan ani-waatebagaawan. The leaves are getting brighter.

aniibiish(an) ni. leaf (leaves)

waatebagaa vii. there are bright leaves

#anishinaabe #anishinaabemowin #ojibwe #ojibwemowin #nature #photography #hike #aesthetic #ecology #language #linguistics #plant #plants

swan-bones

Moonflowers and Moths

Block print, 2021

by Kelly Louise Judd

vintagehomecollection

The household fixtures in this earthen bungalow are recycled; the gas stove, for example, was salvaged from a junkyard and refurbished. Photograph: Don Carson.

The Naturally Elegant Home, 1992

birdsheadrevisited

First images from the James Webb Space Telescope:

Galaxy cluster SMACS 0723

Southern Ring planetary nebula

Stephan’s Quintet

Carina Nebula

teathattast

spacetelescopescience

Just one year after the Hubble Space Telescope discovered the farthest star seen to date, the James Webb Space Telescope is now telling us more about what type of star it is, and the nature of its existence.

Nicknamed Earendel, the star is located in the Sunrise Arc galaxy, and existed within the first billion years after the universe’s birth in the big bang. Webb reveals the star to be a massive B-type star more than twice as hot as our sun, and about a million times more luminous. Astronomers also think, basely solely on the colors of Earendel, there are hints of a cooler companion star.

Researchers are currently analyzing spectroscopic observations of the Sunrise Arc galaxy and Earendel, which will provide precise composition and distance measurements.

Credit: NASA, ESA, CSA, D. Coe (AURA/STScI for ESA), B. Welch (NASA’s Goddard Spaceflight Center; University of Maryland, College Park); Image processing: Z. Levay

Alt Text: The image is split in half vertically to create two images. In the left image, a black background is scattered with hundreds of small galaxies of different shapes, ranging in color from white to yellow to red. Some galaxies, mostly the redder galaxies, are distorted, appearing to be stretched out or mirror imaged. Just a little bit above the center, there is a bright source of light, a star, with 8 bright diffraction spikes extending out from it. The right image is a zoomed-in portion of the image at the left, showing a particularly long, red, thin line that stretches from 1 o’clock to 7 o’clock. There are several bright dots, some thicker than others, along this line, with one labeled as Earendel.

#anangoog

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