So if I look at the sun, the sun is a million and a half kilometres across. The whole point of the black hole is that it has tremendous heft for its incredibly small size. So black holes, contrary to reputation, are small. You say in your book that black holes are bigger on the inside than they are on the other side. This is the first image ever taken of the event horizon of a supermassive black hole, captured by the Event Horizon Telescope in 2017. We can never know details about the interior. So if we live safely on the outside, all we can ever know is what's encoded on the event horizon. We speculate about it, but it is just speculation because this event horizon, this imaginary region around the black hole, forbids information of any kind to be transmitted from the interior to the exterior of the black hole. Once you cross that event horizon, it is inevitable that you will continue to fall to what remains an unknown fate. They suck everything in, but they contain nothing. And I think that is a really intriguing concept for people to wrap their heads around, because it's a shift from the normal image of a black hole. So the star continues to collapse interior to the event horizon, leaving behind nothing, empty space.Īnd like an archeological imprint, this event horizon is a record in the shape of spacetime. That star can no more hover around the event horizon than it can travel faster than the speed of light. It doesn't mean that the star as an object is the black hole because crucially, it continues to fall. It's as though you were trying to launch a spacecraft off the surface of this collapsing star and you would have to go faster than the speed of light to escape it. And so what the star does when it collapses, is it creates a curvature in spacetime that's so strong that eventually, yes, when the star gets dense enough, you create what we call an event horizon, a region beyond which not even light can escape it. What the black hole is, is the remnant left behind after a star is totally gone. I love it because people often will say, aren't black holes a dense state of matter? And that's a confusion. Why is that such an important concept to grasp? You spent quite a bit of time making sure that people understand that black holes are actually nothing. I wanted to combat the preconceived notions about black holes to kind of shuck away the veneer and expose the fascinating attributes of black holes that I think are lesser known, but yet are really more core to their definition than the ones that are floating out there.īlack Hole Survival Guide by Janna Levin. Why frame this as a survival guide for black holes? And it turns out, it's a trip that we maybe, possibly, could even survive - at least, briefly.īob McDonald spoke with Professor Levin about her new book Black Hole Survival Guide. In Black Hole Survival Guide, physicist Janna Levin takes us on a virtual adventure through the cosmos, to experience what it would be like to travel to - and into - a black hole. And now, thanks to a new book, we can do just that. While these sinister, perplexing whirlpools of destruction aren't exactly on the top of anyone's must-visit list, sometimes, it's fun to imagine. There are billions of them in the cosmos, and they shape the galaxies we live in - and yet we can't really see them. Black holes are puzzling entities. They're massive, but somehow they're nothing.
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One is a word for a category of things such as ‘animal’ or ‘vegetable’. Subjects are given pieces of paper with pairs of words. "By prompting some thoughts, statues suppress others, thus promoting an ideological view of the past." Let me explain first how retrieval-induced forgetting (RIF) works in the lab before describing how it can be socially shared in the wild, so to speak. Psychologists have established the existence of a phenomenon known as socially-shared retrieval-induced forgetting (hereafter, SS-RIF). Surely, I hear you say, this is preposterous! Statues are not a means of mind control. Seeing figurative public art every day subtly manipulates our minds. By prompting some thoughts, statues suppress others, thus promoting an ideological view of the past. In fact, monuments make us forget more than they help us remember. However, there is nothing free and open about the contribution of these statues to our discourse on British History. Both Chris Patten and Mary Beard argued in favour of keeping the statue because removing statues of individuals with whose views one disagrees is contrary to freedom of speech and historical accuracy. In the official defence of this choice, something no one can object to was called upon: freedom of speech. One may speculate about the true reasons behind the staunch resistance by this institution against the students’ protest. The student campaign to remove a statue of Cecil Rhodes from Oriel College at Oxford University failed. Once you’re through the line, you’ll launch into a full-screen view of what is effectively a very trimmed-down remote desktop environment. In our testing, the Free access had a typical queue time of a couple of minutes, the longest being eight minutes, but time of day and location will affect your experience. When you go to launch a game, it may put you in a queue depending on how busy things are for your access level. However, syncing your account here seems to just help manage the library, as you’ll need to log in to the relevant platform again when you go to play a game. You can choose to sync your Steam, Epic Games Store, and Ubisoft Connect accounts to your GeForce Now account, which will help filter the game library you see in GeForce Now to the titles you own and the platforms you have access to them on. Nvidia agrees, and tries to push you to install its app instead of using the browser. However, in our experience, it’s preferable to try out the native app instead, as the experience seems to work a bit more smoothly in both the menu navigation and in-game compared to the browser experience. Once logged in and connected, you can choose to access the games through a Chrome, Safari, or Edge browser to try out some games without installing anything. You just have to register yourself with an account, or if you have an existing Nvidia/GeForce account, you can activate GeForce Now on it. Getting started with GeForce Now is fairly straightforward. If you’re keen on the idea of owning your own game library or want to have some flexibility as to where you can game, without having to lug around a gaming rig, this service is worth checking out. You do still need to set up your own account access on their relevant platforms. In addition to your owned game library, you can play many Free to Play games such as Fortnite, League of Legends, Destiny 2, Path of Exile, Rocket League, and more through GeForce Now. In the United States, where this review was done, the membership plans cost the following: There may be times when an RTX 4080 rig is not available for a member, which will revert to an RTX 3080 rig.īeyond those varied limitations, GeForce Now advertises up to 1080p at 60 frames-per-second gameplay for its Priority members, and up to 4K at 120fps for PC/Mac and 4K HDR on Shield TV for its RTX 4080 members. Priority and Ultimate have priority access to the queue, with Ultimate members getting access to systems that provide up to RTX 4080 GPUs (where available, as this support is rolling out in phases). Free members have the lowest priority in connecting to the service, which can mean waiting in line to connect to a rig at times. There’s a priority component to the tiers, too, as Nvidia places limitations on the overall process and user loads on GeForce Now’s regional data centers. There is no set limit to the number of sessions you can start in a day. The free tier also doesn’t feature “RTX On,” Nvidia’s term for ray-tracing and DLSS support. The Free tier is limited to one hour, Priority subscribers can play for up to six hours per session, and Ultimate subscribers get eight hour sessions. Each tier comes with a limit to how long you can be connected to a gaming session at a time. Ring size: 1 1/4" 7 rings) Magnetic Snap closure Internal Pocket. The only flaw is that there is writing on the back of the Note Tab Divider Page(see picture 5) other than that everything is clean. I only have used several pages for notes. Only used some pages, but still looks like new. Feel free to ask questions! Thanks for looking!ĭAY|Runner Day Planner- Harmony Organizer- Green. I ride a bigger board now, so this bag has to go. I kept a Channel Islands 6'0 shortboard in it for a very short while. Segmented, padded shoulder strap that conforms to your shoulder and a non-corrosive, high impact, low friction(Delrin) zipper that provides unmatched strength and smooth operation, all you need is the FCS Dayrunner Shortboard Bag, a Shortboard and your local break! And some swell in the water) This bag measures exactly 74in(6'2) Made to fit a 6'0 shortboard. more that doesn't absorb water like a normal day bag would, an air vent and an internal storage pocket. This Surfboard Day Bag has FCS's high density 5mm foam padding with your choice of a heavy duty 420D nylon top with a heat resistant reflective Alloy bottom or an Alloy/Alloy construction. The FCS Dayrunner Shortboard Bag is perfect for taking your Shortboard to your local break. The FCS Dayrunner Surfboard Bag(Shortboard) is designed specially for your typical Shortboard! With a new refined template that reduces weight and has a better fit. Note: the FCS Dayrunner Shortboard Bag is a lightweight bag for day to day use and is NOT designed to protect boards during extended travel. Without the cost and weight of a Travel Bag. It offers more insulation and protection than a surfboard sock. FCS Dayrunner Shortboard Bag The FCS Dayrunner Shortboard Bag is the ideal bag for day to day mobility and protection. Windows Doctor applies the most professional and effective registry cleaner to solve your registry problem. It will make your computer run as fluently as new and error-free. With Windows Doctor, you’ll see immediate increases in performance and decreases in system conflicts. Its advanced scan engine is able to scan your entire registry within a few seconds to identify every single registry error and safely repair them for you.
We ask that NSFW posts nevertheless focus on the technology rather than the content. links to NSFW apps built with React) but try not to be prudes. Please link some source code (or if not possible, we understand, link some live demo or codepen so that people can try you out and learn from you) 6. We're all here to learn from you, but can't learn very much from a video recording. Demos should link source code or live demos If you need further guidelines on spam, see Reddit's guidelines on Spam. Per Reddit guidelines for self-promotion, you are definitely welcome to promote your own content as part of your participation in this community, but if you repeatedly post low quality crap you will be banned. Telling people to "get out" of the industry or that they are not good enough in some shape or form is a bannable offense. Reasoned criticism of React or any other library is welcome, but spare us your rants. Polite or Constructive criticism is welcome but don't rag on other people's work or attempts to improve themselves. Interested in building mobile apps using React Native? Check out /r/reactnative! Rules 1. Thank you all for reading this far.A community for learning and developing web applications using React by Facebook. This is such a useful hook to have in your belt and a nice simple one to get started learning how to write them.Īs always if you have any questions or think I've done anything wrong please don't hesitate to leave a comment. First we try the new way and if it fails we do it the old way this means in all modern browsers we get the new way straight away and in old browser, IE11, we wait a couple of milliseconds longer before adding the listeners.īelow are a couple of examples, feel free to look through the code and ask any questions you might have.Īnd there we have it, a React hook that will return the result of a media query into a state and will update that state when, and if, the media changes. So that try - catch when the spec was originally made addListener(func) was the way to listen for media change but in 2015, 2 years after iE11 the spec was changes to standardise this with other event listeners and thus addEventListener('change, func) was born. I'll leave you to read through the code then I'll talk a little about the try - catch bit after. The hook is going to be quite a simple one it's only going to use useState and useEffect as well as matchMedia. With this we can simple change animation to fade-ins rather than slides, or even remove the animations completely if you want to. The prefers-reduced-motion CSS media feature is used to detect if the user has requested that the system minimize the amount of non-essential motion it uses.Īgain accessibility related, are you noticing a pattern? Animations are cool, I love adding animations to my sites and apps but some people get motion sickness from them. If someone can't read your text because they need a higher contrast then your site is no good to them. This is another feature with huge accessibility implications. This one currently only works in safari but support will come and it doesn't hurt to have your apps ready to hit the ground running. The prefers-contrast CSS media feature is used to detect if the user has requested that the web content is presented with a higher (or lower) contrast. This means we can change the whole look and feel of our sites to match the theme a user is requesting, this is not only be for ascetics but if a user has sensitive eyes they may request dark mode by default and we can deliver that making a better, more seamless, user experience. The prefers-color-scheme CSS media feature is used to detect if the user has requested a light or dark color theme. You can look down the list over on MDN and see what all the different properties do, I'm going to focus and 3 here that I feel are important and are often overlooked. Enter fullscreen mode Exit fullscreen mode The Brink: The Juno mission launched in 2011, arrived at Jupiter in 2016, and is now on an extended mission. The flowing solar wind compresses the planet’s magnetic field on the day side and stretches it on the night side, forming a long “magnetotail.” I am interested in understanding the dynamics of planetary magnetotails and I have been using Juno data to study Jupiter’s magnetotail, as well as the link between processes in Jupiter’s magnetosphere and its aurora. When a planet’s magnetic field interacts with plasma flowing in the solar wind, it forms a cavity in space, called a magnetosphere, which shields the planet from some of the material and radiation flowing in the solar wind. Marissa Vogt: My goal is to use Juno magnetic field and plasma measurements to understand the structure and dynamics of Jupiter’s magnetosphere. Q &A With Marissa Vogt The Brink: What do you hope to take away from Juno? The Brink caught up with Vogt to talk about the Juno mission and the incredible images that have emerged. The mission has allowed scientists to peer, for the first time, below Jupiter’s dense cloud cover to reveal the story of “Jupiter’s formation and evolution,” according to NASA, and to understand more about the origins of the solar system. She explains that participating scientists join NASA missions to “provide expertise on a specific topic or investigation”-and Vogt’s specialist subjects are planetary magnetic fields and auroras.įor perspective on how long a Jupiter mission takes, the Juno spacecraft launched August 5, 2011, from Cape Canaveral, Fla., and first entered Jupiter’s orbit five years later, on July 4, 2016. Vogt says she was selected as a participating scientist for Juno in 2019 and again in 2021, when Juno’s mission was extended. And the beneficiaries of these incredibly detailed photographs are scientists, like Marissa Vogt, who came to Boston University in 2014 as a postdoc and is now a senior research scientist in the Center for Space Physics. In recent months, incredible images of Jupiter, resembling abstract watercolor paintings, have emerged from NASA through its Juno mission. Gill processed the image to enhance the color and contrast, using raw JunoCam data. An image of two large rotating storms on Jupiter captured by Juno in November 2021. Coastal parks hosting historic resources, such as Colonial National Historic Park, can be seen utilizing these techniques to dissipate wave energy and protect inland sites. However, this may impede longshore transportation of material leading to downdrift erosion as well as form intertidal marsh not appropriate for the location, replacing natural sandy beach habitat. Breakwaters allow for the accretion of sediment between the structure and the shoreline, potentially stabilizing wetlands and providing shelter for new intertidal marsh habitat. Breakwaters can be placed attached to the shoreline as headlands or submerged near the shoreline as sills. Made of rock, concrete, or oyster shell, these structures can be floating or fixed on the ocean floor and can be continuous or segmented. Breakwaters Steam charts, data, update history. These structures are composed of either natural or artificial materials, and are designed to alter the effects of waves and slow coastline erosion and change.Ī breakwater is an offshore shore-parallel structure that “breaks” waves, reducing the wave energy reaching the beach and fostering sediment accretion between the beach and the breakwater. Swim, sail, and fly to explore new islands and fight Titans. Other anthropogenic structures that are used to stop or alter natural coastal changes include breakwaters, headlands, sills, and reefs. Manuals and guidelines for different types of breakwaters and coastal structures have been issued before this time, e.g. A series of breakwaters promoting sediment accretion at Colonial National Historic Park, Virginia. MarCom WG 40: State-of-the-Art of Designing and Constructing Berm Breakwaters (2003) 59.00. So you want a bit more fishing than the Drift offers? Well the Sound is Perception’s sit-in option for fishing kayaks. There’s also a couple of rod holders for part time anglers, but the Sound is the more fishing specific version of this boat. The Drift’s design is sturdy and easy to paddle, while also being convenient to move around on land with solid moulded handles and a shorter design make it easy to store, too. There is also a paddle park for when you just want to sit back and relax. Recreational comfort is heightened with features like the drinks holder and dashboard, where you can store things like phones securely and within reach. The large cockpit and stable design means the Drift inspires confidence in paddlers, and the comfortable padded seat and footrests mean you can stay out on the water all day. Coming in with a very affordable price point, the Drift is a great sit-in option for beginners, but with attributes of a more advanced kayak. Perception’s entry level recreational kayak, the Drift is designed to be your go to boat for lakes and slow moving rivers. Perception Sit-In Recreational Kayaks Perception Drift 9.5 Perception has a boat for almost everyone and all occasions.Īs an affiliate of Amazon and other retailers, we may earn a small commission when you buy via our links, at no additional cost to you. Their 2023 kayaks show that they’re not just a historic brand, but have continued to push the development of boats to the modern day. Each boat is finished with a personal touch, which makes the Perception range truly unique. Their versatile range focuses on comfort and durability across the board. It’s unusual to come across a seasoned kayaker who hasn’t paddled a Perception kayak. We will continue to work non-stop to get you out on the water as soon as possible.Every paddler knows Perception’s rich and varied history. Finally, if you are ordering replacement parts, please review our Shipping Notice. We are also working diligently to answer your questions and have recently added additional resources in this area, but our response time may be longer than typical due to the volume of contacts we are receiving. They can keep you informed on lead times for boats and have insight on what is coming down the pipeline. Our advice is to discuss your needs with your local Perception Kayaks dealer. If you are searching for a particular model, size, or color, you may not find it immediately. We nevertheless have a wait time for new orders, and our phone lines have seen an influx of calls. We are producing kayaks as fast as we safely can and shipping kayaks to dealers daily. As a medium-sized business, when so many others are struggling, we are grateful that our primary challenge is to do more rather than less, and we thank you for your interest and support. Our South Carolina factory is humming with activity, but we are mindful that we need to produce and deliver boats safely. People of all ages are looking to get outdoors, and we have seen a tremendous surge in demand for our products over the last several weeks as a result. Kayaking is a great escape anytime, and especially now. Skills this is a beginner level knitting pattern and the only technique involved is the knit stitch. L80325 for thousands of free patterns, visit our website to order visit our website or call: A ruana can be knit in stockinette stitch, where you knit and purl each row alternately. With This Knit Ruana Pattern, The Construction Gets A Little More Complicated. Pattern is written for four sizes: To purchase a kit please visit their site here. The measurements of the finished piece are taken with the ruana laid flat and lightly blocked, but due to the loose knit nature of the finished fabric, it will have quite a bit of drag and will stretch when worn (as pictured). Approximately 30 Wide X 56 Long (28 Long When Wearing) From this point, ruana is ready to be worn as is. Once all three pieces are finished and blocked, shoulders are seamed. Knit Next 2 Sts Together As Described In Steps 2 And 3.Īlthough the ruana is worked on circular needles, it is worked back and forth. The stone ridge ruana wrap free knitting pattern creates a flowy garment that drapes beautifully over the shoulders. This design is knit in 2 separate front panels (right and left), which are joined at the neck and continued down the back, as one piece. All patterns are written in standard us terms. (200m) long, making it perfect for big projects or for building up a yarn supply. Made of 70 polyester and 30 viscose, each cake weighs 3.5 oz. When you match the gauge in a pattern, your project will be the size specified in the pattern and the materials specified A ruana is a simple wrap that is perfect on a cool day, or just to put over your shoulders around the house. Thin and wide, this sand-washed yarn is lightweight and adds a beautiful aged and textured look to scarves and home decor. Read Also: Free Online Knitting Patterns Shawls Wraps Poncho The Yarn Is A Fusion Of Lovely Shadings In A Bulky Weight That Makes It Quick To Knit. |