Group items tagged

"PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics."

Interesting overview of the physics of a bicycle, discussion about history, research and conclusion that we really don't understand how a bicycle works.

"Which of Newton's Laws (First, Second or Third) says that an object will move in a straight line at a constant speed without a net force? This is a terrible question for the following reasons: Does it really matter which law is First, Second, and Third? Technically, both the First and Second Law would be correct answers. It misses the main point about forces and motion and instead gives some type of recall-based question. I just think we can do better. Just because most physics textbooks (but not all) have been very explicit about Newton's Laws of Motion, this doesn't mean that is the best way for students to learn."

""One of the things I learned about the world of art," Teller says, "is there are people who really want to believe in magic, that artists are supernatural beings-there was some guy who could walk up and do that. But art is work like anything else-concentration, physical pain. Part of the subject of this movie is that a great work of art should seem to have magically sprung like a miracle on the wall. But to get that miracle is an enormous, aggravating pain." To see Vermeer as "a god" makes him "a discouraging bore," Teller went on. But if you think of him as a genius artist and an inventor, he becomes a hero: "Now he can inspire." "

": Hansen's study comes via a nontraditional publishing decision by its authors. The study will be published in Atmospheric Chemistry and Physics, an open-access "discussion" journal, and will not have formal peer review prior to its appearance online later this week. [Update, July 23: The paper is now available.] The complete discussion draft circulated to journalists was 66 pages long, and included more than 300 references. The peer review will take place in real time, with responses to the work by other scientists also published online. Hansen said this publishing timeline was necessary to make the work public as soon as possible before global negotiators meet in Paris later this year. Still, the lack of traditional peer review and the fact that this study's results go far beyond what's been previously published will likely bring increased scrutiny. On Twitter, Ruth Mottram, a climate scientist whose work focuses on Greenland and the Arctic, was skeptical of such enormous rates of near-term sea level rise, though she defended Hansen's decision to publish in a nontraditional way."

h/t Joyce

What we're seeing most recently, and what I'm very excited about, is going from that linear model to a much more non-linear idea. The digital learning experience is becoming really a collection of inter-related learning nuggets, that you might take very different paths through, depending who you are and what your needs are, and how you learn most effectively.

" [This approach] is really not trying to mimic what we would do in the physical world, but starting from an entirely digital form, and really being very thoughtful about what the learning outcomes are that we're trying to achieve, and how can the technology enable us to achieve those outcomes. There are many things that are very different about how you would design learning and work, if you really are doing it from a digital-first standpoint. In trying to do the latter, what are some of the principles you keep coming back to? "

"We build software that shapes our cities. More specifically, (1) we create micro-institutions in physical space, (2) we design social processes that allow others to replicate and evolve those micro-institutions, and (3) we write software that enables those social processes. We use this process to create more robust, decentralized, human-scale systems in our cities. We are particularly focused on reinventing our current systems for learning, agriculture, and transportation."

"The Reality Editor is a new kind of tool for empowering you to connect and manipulate the functionality of physical objects. Just point the camera of your smartphone at an object and its invisible capabilities will become visible for you to edit. Drag a virtual line from one object to another and create a new relationship between these objects. With this simplicity, you are able to master the entire scope of connected objects."

"Intellectual skills, in contrast, have to do with a person's ways of reasoning, hypothesizing, exploring, understanding, and, in general, making sense of the world.  Every child is, by nature, an intellectual being--a curious, sense-making person, who is continuously seeking to understand his or her physical and social environments.  Each child is born with such skills and develops them further, in his or her own ways, through observing, exploring, playing, and questioning.  Attempts to teach intellectual skills directly inevitably fail, because each child must develop them in his or her own way, through his or her own self-initiated activities.  But adults can influence that development through the environments they provide.  "

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