Fuck Personality Tests. Who Comes To Your Mind When I Say "Michael"

ya meme // nine quotes

the wizard’s oath (young wizards by diane duane)

Cosmic Dance: Creation of Supermassive Black Holes

Evolution of two equal sized galaxies colliding and forming a massive cloud of gas that will collapse into black hole.

Credit: Ohio State University

The Wizards' Oath changes from novel to novel in the Young Wizards series. Do you think you'll ever have a final version of it, or do you see the Oath continuing to grow and change for as long as the series continues?

There won’t ever be a “final” version, no. Whenever the series ends (or its author does), there will always be an understanding that there would always have been versions of the Oath we’d simply never see (or have time to see).

It’s not so much an issue of the Oath itself changing. At the start of a wizardly career, it’s offered to each probationer in the form that will best express to them what their responsibility to the Universe, the One and the Powers that Be is going to look like, at least at the outset. It tends to be simple and clear to start with: people need to be certain about what they’re signing up for. But afterwards, Oaths can change and become more complex as their users change, and as their understandings of that responsibility grow.

There are versions of the Oath that have become very popular across cultures, across regions of a world, or sometimes even planet-wide or further, depending on the species. But everyone understands that each wizard has the right to restate the Oath for himself/herself/itself/whatevergenderself so that it best expresses that responsibility to minimize the growth / effects of entropy, including the most basic strictures: don’t end life if you can avoid it, don’t handle finite resources thoughtlessly, don’t interfere in working systems unless the system itself is under significant threat, don’t change things without permission / fix what’s not broken (a dual simplification/restatement of the Troptic Stipulation: see Tom’s discussion of it and other aspects of the Oath here).

But outside of that, there’s room for considerable elaboration. Some wizards over time evolve personal recensions of the Oath that are quite long. In fact mention is made in future-canon of a species somewhere a long way off whose entire wizardly practice consists in recitation of the Oath in one of its most involved and complex forms. They spend their whole lives, these wizards, in an ecstasy of expression that we’re not remotely equipped to understand… continually reminding the Universe how it’s meant to be cared for. They don’t actually do anything — or so it would seem to us at first (or second or tenth) glance. But our perception of the never-ending intervention that is their lives is necessarily limited by the (all-too-)human perception that to matter, you have to be doing stuff. As their species reckons things, they are the most recklessly active and adventurous wizards extant. And who are we to judge them as being otherwise? 

The above is just one of many worlds or other kinds of places (I think this gets mentioned in AWoM somewhere) where, in this mode or others, the Oath appears in forms that would make no sense whatsoever to a human. Yet these still fruitfully express the relationships of the species in question with the Powers and with the Universe they’re helping to take care of. And even when using what we consider one of the conventional local wordings, inside a human wizard’s head — over the course of their practice — images and concepts get attached to the mere words that are evocative of the interventions you’ve participated in, the lives you’ve saved, the friends you’ve lost, the causes you’ve won. In fact you could probably make a case that no matter how many times you repeat the words, even if they’re the same words, it is impossible for you ever to speak the same Oath twice. You are not the wizard you were a year ago, or three, or ten: or an hour ago, or five minutes back. You are in constant change, as is the Universe you serve (since you’re stuck inside Time together). Your work in that Universe changes you further, and your constant commitment and re-commitment — as itself manifested in the Oath — changes you further still. It’s all flux, from a wizard’s first breath to the last: and that’s as it should be.

So, no… no “final” versions of the Oath: not until the last quartz molecule stops vibrating. By which time, it’ll no longer be any problem of mine. :)

from The Memory Palace, by Nate DiMeo

This is awful. I just looked it up and Koi fish can live more than 200 years, the oldest on record being Hanako Fish who died at age 226.

Tom and Carl will die before them.

Sharks may not be as solitary as originally thought. Researchers have discovered the fish congregating and interacting with others of their own species in ways that suggest they have long-lasting friendships.

PHOTOGRAPH BY TANYA HOUPPERMANS

here are some plasma waves recorded by the voyager from certain planets and turned into sounds audible to humans. they’re quite lovely, especially to meditate, astral project, or just fall asleep to.

Neptune

Jupiter

Uranus

Earth

Saturn

Young Wizards is my favorite book series because where else are you going to find a book where a twelve year old, an alien elf prince, a talking tree, and a crystal centipede all get together to do surgery on the sun.

goodnight moon. goodnight Milky Way. goodnight Ursa Major (UMa I dSph). goodnight 24IC 1613 (UGC 662.350[8].

New observations of a ‘dust trap’ around a young star solve long-standing planet formation mystery Astronomers using the new Atacama Large Millimeter/submillimeter Array have imaged a region around a young star where dust particles can grow by clumping together. This is the first time that such a dust trap has been clearly observed and modeled. It solves a long-standing mystery about how dust particles in discs grow to larger sizes so that they can eventually form comets, planets and other rocky bodies.

Astronomers now know that planets around other stars are plentiful. But they do not fully understand how they form and there are many aspects of the formation of comets, planets and other rocky bodies that remain a mystery. However, new observations exploiting the power of ALMA are now answering one of the biggest questions: how do tiny grains of dust in the disc around a young star grow bigger and bigger—to eventually become rubble, and even boulders well beyond a metre in size?

Computer models suggest that dust grains grow when they collide and stick together. However, when these bigger grains collide again at high speed they are often smashed to pieces and sent back to square one. Even when this does not happen, the models show that the larger grains would quickly move inwards because of friction between the dust and gas and fall onto their parent star, leaving no chance that they could grow even further.

Somehow the dust needs a safe haven where the particles can continue growing until they are big enough to survive on their own. Such “dust traps” have been proposed, but there was no observational proof of their existence up to now.

Bottom left image: Artist’s impression of the proposed disk structure of Oph IRS 48. The brown spots represent the large and small grains. The larger grains detected by ALMA are concentrated in the dust trap at the bottom of the image. The blue represents the distribution of carbon monoxide gas. The gap in the disk is shown with the proposed planetary body that is sweeping the area clear and providing the conditions necessary to form the dust trap. Credit: Nienke van der Marel

Nienke van der Marel, a PhD student at Leiden Observatory in the Netherlands, and lead author of the article, was using ALMA along with her co-workers, to study the disc in a system called Oph-IRS 48. They found that the star was circled by a ring of gas with a central hole that was probably created by an unseen planet or companion star. Earlier observations using ESO’s Very Large Telescope had already shown that the small dust particles also formed a similar ring structure. But the new ALMA view of where the larger millimetre-sized dust particles were found was very different!

“At first the shape of the dust in the image came as a complete surprise to us,” says van der Marel. “Instead of the ring we had expected to see, we found a very clear cashew-nut shape! We had to convince ourselves that this feature was real, but the strong signal and sharpness of the ALMA observations left no doubt about the structure. Then we realised what we had found.”

What had been discovered was a region where bigger dust grains were trapped and could grow much larger by colliding and sticking together. This was a dust trap—just what the theorists were looking for.

Bottom right image: ALMA image of the dust trap around Oph IRS 48. The distinctive crescent-shaped feature comes from the accumulation of larger dust grains in the outer regions of the disk. This provides the safe haven dust grains need to grow into larger and larger objects. Credit: ALMA (ESO/NAOJ/NRAO) / Nienke van der Marel

As van der Marel explains: “It’s likely that we are looking at a kind of comet factory as the conditions are right for the particles to grow from millimetre to comet size. The dust is not likely to form full-sized planets at this distance from the star. But in the near future ALMA will be able to observe dust traps closer to their parent stars, where the same mechanisms are at work. Such dust traps really would be the cradles for new-born planets.”

The dust trap forms as bigger dust particles move in the direction of regions of higher pressure. Computer modelling has shown that such a high pressure region can originate from the motions of the gas at the edge of a gas hole—just like the one found in this disc.

“The combination of modelling work and high quality observations of ALMA makes this a unique project”, says Cornelis Dullemond from the Institute for Theoretical Astrophysics in Heidelberg, Germany, who is an expert on dust evolution and disc modelling, and a member of the team. “Around the time that these observations were obtained, we were working on models predicting exactly these kinds of structures: a very lucky coincidence.”

The observations were made while the ALMA array was still being constructed. They made use of the ALMA Band 9 receivers—European-made devices that allow ALMA to create its so far sharpest images.

“These observations show that ALMA is capable of delivering transformational science, even with less than half of the full array in use,” says Ewine van Dishoeck of the Leiden Observatory, who has been a major contributor to the ALMA project for more than 20 years. “The incredible jump in both sensitivity and image sharpness in Band 9 gives us the opportunity to study basic aspects of planet formation in ways that were simply not possible before.”