Photo library: Infrastructure 15

first_imgClick on a thumbnail for a low-resolution image, or right-click on the link below it to download a high-resolution copy of the image.» Download Infrastructure contact sheet (1.1MB) » Download full image library contact sheet (10.5MB) Richards Bay, KwaZulu-Natal: A ship docked at the harbour. » Download high-res image Richards Bay, KwaZulu-Natal: Coal export harbour. » Download high-res image Richards Bay, KwaZulu-Natal province: Steel exports at the harbour. » Download high-res image Richards Bay, KwaZulu-Natal province: Huge piles of wood chips for export at the harbour. » Download high-res image Richards Bay, KwaZulu-Natal province: Dolosse, irregularly shaped concrete blocks invented in South Africa, help protect the sea wall at the harbour. » Download high-res image Richards Bay, KwaZulu-Natal province: The harbour. » Download high-res image Richards Bay, KwaZulu-Natal province: The harbour. » Download high-res image Richards Bay, KwaZulu-Natal province: The harbour. » Download high-res image Richards Bay, KwaZulu-Natal province: The harbour. » Download high-res image INFRASTRUCTURE 15: {loadposition infrastructure}Having trouble downloading high-resolution images? Queries about the image library? Email Mary Alexander at [email protected]last_img read more

Read More »

Weekly Wrapup: Google Wave, Real-Time Web Trends, And More…

first_imgrichard macmanus Related Posts ReadWriteWeb’s very first event is coming soon: The ReadWrite Real-Time Web Summit on October 15th in Mountain View, California. It’s a 1-day event that will bring together some of the smartest minds doing real-time work for an industry-changing, face-to-face conversation. In conjunction with the Summit, we’ll be releasing our second original premium research report in October. Registration is now open for the The ReadWrite Real-Time Web Summit, we hope to see you there!Web TrendsTop 50 Real-Time Web CompaniesAs part of our lead-up to The ReadWrite Real-Time Web Summit, this week we listed 50 leading companies of the Real-Time Web. Like any list, it is bound to be missing some worthy companies – so we invite you to add more in the comments. Our aim is to unveil the top100 Real-Time Web companies at our event. Ten Useful Examples of the Real-Time Web in ActionThe Real-Time Web – it’s more than just immediate delivery of Twitter messages to an always-on mobile device, disrupting the concentration that civilization is based on and bringing a rush to crazed social media addicts obsessed with the hottest new buzzwords. No, there are scores of companies building and selling systems today that deliver very real value via the real-time web.We’ve interviewed 40 companies in the real-time web market in preparation for the forthcoming ReadWrite Real-Time Web Summit and a companion research report. In this post are nine solid examples of real-time web technology that illustrate what it is and why it’s important – and one possible future scenario that’s important enough it has to be discussed as well.What Early Birds Want to Know About the Real-Time WebThe real-time web is a broad and rich phenomenon emerging online. A wide variety of companies are building and using it in really diverse ways. Because this field is so new and is seeing such breadth of innovation, people have a lot of questions about it. In this post are some of our favorite questions that Early Bird registrants said that they want to tackle.More Proof: Facebook for the Rich, MySpace for the Poor Oh how the mighty have fallen. The one time king of social networks, MySpace, now has the honor of being the site where the less affluent members of the online population stake their claims by way of bedazzled profiles overrun with auto-playing videos and songs. Meanwhile, the upscale, financially solvent users have moved on – and by moved on, we mean to Facebook, of course. At least those are the findings of the latest social networking study done by American consumer behavior analysis firm Nielsen Claritas. Kiva’s Causemopolitan on World Tour: Social Media for Social Good It’s been a long and winding road for serial volunteer and social media philanthropist Sloane Berrent. Since her unplanned departure from an L.A.-based startup in 2008, Berrent has traveled through eight countries, documenting and publicizing the struggles of those in developing areas through her blog posts, tweets, images, videos, and her own presence at events at home and abroad. From post-Katrina New Orleans to a trash dump in Manila to a monastery in Burma, read on for her story of trying to achieve social good through social media.SEE MORE WEB TRENDS COVERAGE IN OUR TRENDS CATEGORYReadWriteEnterpriseOur channel ReadWriteEnterprise, devoted to ‘enterprise 2.0’ and using social software inside organizations. Trading Scarcity: Is This the Killer App for the Real-Time Web?Most platforms gain traction through a killer app. In the second generation of real time, that killer app was market data for financial traders. What will it be in the third generation? Today, the real-time Web is associated with social networking status updates via services such as Twitter and Facebook. But whether this will be the killer app for this generation is not clear. The killer app matters, because the winner at the platform layer will be the company that hosts it.ReadWriteStartOur channel ReadWriteStart, sponsored by Microsoft BizSpark, is dedicated to profiling startups and entrepreneurs.TechStars Investor Day Hits a Home Run With bleary eyes and bellies full of coffee, a roomful of investors, journalists and young entrepreneurs gathered this morning for the Bay Area TechStars Investor day. The Boulder and Boston-based startup incubator pulled out all the stops as 13 companies took to the stage to plead their case for funding. In this post are the summaries of each.SEE MORE STARTUPS COVERAGE IN OUR READWRITESTART CHANNELWeb Products100,000 Google Wave Preview Invites: Everything You Need to Know Google officially announced this week that it will send out 100,000 invitations to preview Google Wave. These accounts will go to developers who are already in the developers preview and users who signed up for accounts at wave.google.com on a first-come, first-served basis. A select number of Google Apps users will also get access to Wave. Google first unveiled Wave in May and since then the team has focused almost exclusively on making the system more stable and scalable.Twitter and Facebook Investment Terms and Game Plans There is a lot of chatter in the blogosphere about the recent $100 million investment in Twitter at a $1 billion valuation, but most of it based on speculation. Twitter and Facebook are private companies. You cannot get the facts simply by typing a stock symbol into Yahoo Finance. Our mission at ReadWriteWeb is to add to the facts, not just the speculation. Rather than posting confidential information that someone has leaked to us, we prefer to start with publicly available data. We could not refrain from a bit of game theory speculation on how this could play out, and we invited a specialist in startup deals to add his speculation as well. 2 Billion Downloads Later, Apple’s App Store is Still Going Strong Apple this week announced that a total of 2 billion apps have now been downloaded from the App Store. There are now over 85,000 apps in the store, up from 65,000 on July 14, and the number of developers has grown from 100,000 in July to around 125,000 today. iPhone and iPod touch users now download close to 6.6 million apps every day and this number continues to grow.Google and Best Buy Partner on Mobile Applications This week major electronics retailer Best Buy and internet powerhouse Google announced a partnership designed to help the retailer compete in the mobile sales arena. In addition to other Best Buy strategies for ramping up their mobile division, one key aspect to their multiphase plan involves collaborating with Google on a series of exclusive mobile applications, the first one being a shopping app that helps customers find the item they’re looking for within their nearest Best Buy store. SEE MORE WEB PRODUCTS COVERAGE IN OUR PRODUCTS CATEGORYThat’s a wrap for another week! Enjoy your weekend everyone. A Web Developer’s New Best Friend is the AI Wai… In this edition of the Weekly Wrapup – our newsletter summarizing the top stories of the week – we continue the build-up to our first event: The ReadWrite Real-Time Web Summit on October 15th in Mountain View, California. You can register here for the low price of $195. Also this week we published a list of 50 leading Real-Time Web companies, looked at the release of 100,000 Google Wave invites, compared Twitter and Facebook game plans, and more. We also check in on our two main channels: ReadWriteEnterprise (devoted to ‘enterprise 2.0’ trends and products) and ReadWriteStart (dedicated to profiling startups and entrepreneurs). Subscribe to Weekly WrapupYou can subscribe to the Weekly Wrapup by RSS or by email (form below).RWW Weekly Wrap-up Email Subscription form: Why Tech Companies Need Simpler Terms of Servic…center_img Tags:#web#Weekly Wrap-ups Top Reasons to Go With Managed WordPress Hosting 8 Best WordPress Hosting Solutions on the Market Less Than 2 Weeks Till The ReadWrite Real-Time Web Summitlast_img read more

Read More »

Scientists produce a 3D morphokinematical model of the planetary nebula NGC 2440

first_img(Phys.org)—Astronomers from the Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG) in Brazil have developed a 3D model of the planetary nebula NGC 2440, describing the kinematics and morphology of this interesting object. The model, introduced in a paper published on June 3 on the arXiv pre-print server, could shed new light on the origins and formation processes of planetary nebulae. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. The Colorful Demise of a Sun-Like Star © 2016 Phys.org Mesh model to NGC 2440 built with SHAPE (left) and reference HST image (right). Credit: Paulo Lago/Roberto Costa, 2016. Discovered by William Herschel in 1790, NGC 2440 is one of the most well-known planetary nebulae in our Milky Way galaxy. The object is located in the Puppis constellation and its central star, designated HD 62166, is possibly the hottest known white dwarf to date.While studying NGC 2440, Paulo Lago and Roberto Costa of IAG, were particularly interested in the nebula’s core. The central region has drawn attention of the astronomers due to its complexity and a wealth of microstructures.In order to create a model that would showcase the nebula’s complicated structure, the scientists used high-resolution spectra and position-velocity diagrams of NGC 2440. The high angular resolution images required for modeling purposes were selected from the Hubble Space Telescope’s (HST) Wide Field Planetary Camera (WFPC2), available in different filters.The astronomers utilized the SHAPE software to construct the 3D model. This tool allows researchers to reconstruct the 3D structure of a planetary nebula in great detail, taking into account projection effects, using high angular resolution images such as those from the HST, and high resolution spectra. SHAPE is capable of building a mesh model inside a 3D environment in order to analyze the morphology and kinematics of planetary nebulae.”SHAPE modeling requires a mesh model and a set of physical parameters such as velocity fields and density distributions derived from the observational data. In general, the larger is the database, the better is the model due to the increase in the number of independent constraints,” the researchers noted in the paper.According to the newly developed 3D model, NGC 2440 is a multi-polar nebula with at least two bipolar components. The larger structure has a position angle of 85 degrees, while the smaller one has a position angle of 35 degrees; thus, they are tilted 50 degrees apart. These findings suggest the presence of a toroidal structure surrounding the core of the planetary nebula. “This torus is inside the inner bipolar structure at position angle of 35 degrees, however, it is very hard to distinguish such a feature in the high angular resolution images from HST due to filaments and ‘secondary’ morphological structures,” the paper reads.Moreover, based on the observational data and the 3D model, the scientists found that a toroidal structure not only exists but is also strongly interacting with the environment or the radiation field.NGC 2440 was found to showcase a molecular emission of carbon monoxide, particularly in the bipolar component, with a position angle of 35 degrees. According to the research, the presence of fast carbon monoxide components in the core region points to the destruction of a neutral and dense torus by the out flow at the moment of the lobes formation.”From our models and the observational data, we conclude that a segmented toroidal structure is a good description for the inner part of NGC 2440. The model based upon this hypothesis provides a good reproduction of the observed position-velocity diagrams, therefore it can be said that a torus, segmented at least in three parts, is in good agreement with the observational data. This result agrees with that of Wang et al. (2008), who detect a molecular outflow in NGC 2440, aligned with the optical bipolar lobes,” the astronomers concluded.The authors of the paper also managed to derive the distance to NGC 2440. According to their estimates, this nebula is located about 5,900 light years from the Earth. Previous calculations indicated a 4,000-light-year distance. More information: NGC 2440 : A morpho-kinematical model, arXiv:1606.01234 [astro-ph.SR] arxiv.org/abs/1606.01234AbstractThis work describes the modelling of the 3D structure and position-velocity (P-V) diagrams of NGC 2440, a well known planetary nebula, aiming to describe the morphology of this object, specially its core. We have used high resolution spectra and P-V diagrams to reproduce the 3D structure of the nebula using SHAPE, a software that allows 3D modelling. HST high angular resolution images were used as reference to the model. The observational data point to a segmented core, and the simulations confirm this assumption; the best model for the nebula is a torus segmented in three pieces. The simulated P-V diagrams agree with the observations. We suggest that the torus was torn apart by interaction with the surrounding medium, either as winds or the radiation field. For the two bipolar lobes, orientation angles to the plane of the sky of 27±5 and −5±3 degrees, respectively for the bipolar components with PA of 85 and 35 degrees, were derived. No additional bipolar lobes were required to model the observed features of NGC 2440. A distance of 1.8±0.5 kpc was derived for the nebula using our velocity field for the toroidal structure. These results are the first derived for NGC 2440 from modelling in a 3D environment. Explore further Citation: Scientists produce a 3D morpho-kinematical model of the planetary nebula NGC 2440 (2016, June 9) retrieved 18 August 2019 from https://phys.org/news/2016-06-scientists-3d-morpho-kinematical-planetary-nebula.htmllast_img read more

Read More »