Slides from a talk made to the Jonge Akademie of the Dutch Royal Academy of Arts and Science in March 2009.
As with any communication medium, and particularly a new one, virtual worlds offer advantages and disadvantages in the context of science and science communication. Scientists who are geographically separated can collaborate via their avatars. Data can be visualised and interacted with in new ways. And the public and scientists can engage with a sense of intimacy that makes the participants feel visible, involved, and able to interact with one another. Yet the technology is young, interfaces are difficult to use and, for most people, virtual worlds are still a mystery. The presentation will include: a brief introduction to the basics of virtual worlds; examples (using screenshots) showing how virtual worlds are being used by scientists and science communicators, a critique of benefits and limitations, and a discussion of likely future developments.
The Rise of Citizen-Scientists in the Eversmarter World - Alex Lightman - H+ ...Humanity Plus
Alex Lightman
Executive Director, Humanity+
The Rise of Citizen-Scientists in the Eversmarter World
Knowledge may be expanding exponentially, but the current rate of civilizational learning and institutional upgrading is still far too slow in the century of peak oil, peak uranium, and "peak everything". Humanity needs to gather vastly more data as part of ever larger and more widespread scientific experiments, and make science and technology flourish in streets, fields, and homes as well as in university and corporate laboratories. In this talk, H+ Executive Director Alex Lightman will give an introduction and overview of the big picture of H+ the organization, the magazine, and the conference, and how the participants can make the most of their experience and relationships at the conference. The case for ending embargoes and other beaver dams in the rivers of potentially global knowledge will be made. Lightman will offer a vision of a properly functioning Eversmarter world, ending with a call to action to become a citizen-scientist, and a recruiter of other citizen-scientists.
Alex Lightman is the Executive Director of Humanity+ and the chair of the H+ Summit @ Harvard and of the inaugural H+ Summit held December 2009 in Irvine, California. He is a director of Fortune Nest Corporation (Bahrain, Beijing and Beverly Hills, CA) and of Inova Technology. He is an award-winning educator, an inventor with several US patents issued or pending and the author of over 800,000 words, including 12 articles in h+ magazine, and Brave New Unwired World: The Digital Big Bang and The Infinite Internet, the first book on 4G wireless. He has advised NATO, the US Dept. of Defense, and a number of governments on Internet Protocol version 6, the 128-bit successor to the current Internet, IPv4. Lightman's advocacy led to the only Congressional hearings held on US Internet Leadership, conducted by The Government Reform Committee and at which Lightman testified, leading to implementation of Lightman's recommendations to mandate IPv6 for the US government and require IPv6 as part of government information technology contracts. Lightman studied Civil and Environmental Engineering, and graduated from the Massachusetts Institute of Technology in 1983 (Course I-A), and attended graduate school at Harvard's Kennedy School of Government. He lives in Santa Monica, California, where he runs marathons, and attempts his first Ironman triathlon, in the UK, on August 1, 2010.
Lezing Floris Venneman tijdens Secretary Plus Networking Event - AmsterdamFloris Venneman
Lezing over ambitie, ondernemerschap en Business Model You tijdens het Networking Event van Secretary Plus in Amsterdam op donderdag 6 februari 2014. Mooie verhalen gehoord uit de zaal over passies, ambities, plannen en ideeen.
Lezing Floris Venneman tijdens PinkWeb Portal EventFloris Venneman
Ondernemen in de Nieuwe Werkelijkheid vraagt veel van ondernemers en dus ook van accountants. Nieuwe verdienmodellen. Een andere relatie met je klanten. Zoeken naar de toegevoegde waarde de accountant heeft voor zijn klanten. Kortom: veel uitdagingen.
Tijdens deze lezing heb ik geprobeerd de accountants te prikkelen om anders te kijken naar hun (potentiële) klanten, hun toegevoegde waarde en hun verdienmodellen.
A teaser of Verteego’s capabilities to the attention of the world. Verteego is a sustainability platform for responsible companies only. Registration and trial is free!
The Rise of Citizen-Scientists in the Eversmarter World - Alex Lightman - H+ ...Humanity Plus
Alex Lightman
Executive Director, Humanity+
The Rise of Citizen-Scientists in the Eversmarter World
Knowledge may be expanding exponentially, but the current rate of civilizational learning and institutional upgrading is still far too slow in the century of peak oil, peak uranium, and "peak everything". Humanity needs to gather vastly more data as part of ever larger and more widespread scientific experiments, and make science and technology flourish in streets, fields, and homes as well as in university and corporate laboratories. In this talk, H+ Executive Director Alex Lightman will give an introduction and overview of the big picture of H+ the organization, the magazine, and the conference, and how the participants can make the most of their experience and relationships at the conference. The case for ending embargoes and other beaver dams in the rivers of potentially global knowledge will be made. Lightman will offer a vision of a properly functioning Eversmarter world, ending with a call to action to become a citizen-scientist, and a recruiter of other citizen-scientists.
Alex Lightman is the Executive Director of Humanity+ and the chair of the H+ Summit @ Harvard and of the inaugural H+ Summit held December 2009 in Irvine, California. He is a director of Fortune Nest Corporation (Bahrain, Beijing and Beverly Hills, CA) and of Inova Technology. He is an award-winning educator, an inventor with several US patents issued or pending and the author of over 800,000 words, including 12 articles in h+ magazine, and Brave New Unwired World: The Digital Big Bang and The Infinite Internet, the first book on 4G wireless. He has advised NATO, the US Dept. of Defense, and a number of governments on Internet Protocol version 6, the 128-bit successor to the current Internet, IPv4. Lightman's advocacy led to the only Congressional hearings held on US Internet Leadership, conducted by The Government Reform Committee and at which Lightman testified, leading to implementation of Lightman's recommendations to mandate IPv6 for the US government and require IPv6 as part of government information technology contracts. Lightman studied Civil and Environmental Engineering, and graduated from the Massachusetts Institute of Technology in 1983 (Course I-A), and attended graduate school at Harvard's Kennedy School of Government. He lives in Santa Monica, California, where he runs marathons, and attempts his first Ironman triathlon, in the UK, on August 1, 2010.
Lezing Floris Venneman tijdens Secretary Plus Networking Event - AmsterdamFloris Venneman
Lezing over ambitie, ondernemerschap en Business Model You tijdens het Networking Event van Secretary Plus in Amsterdam op donderdag 6 februari 2014. Mooie verhalen gehoord uit de zaal over passies, ambities, plannen en ideeen.
Lezing Floris Venneman tijdens PinkWeb Portal EventFloris Venneman
Ondernemen in de Nieuwe Werkelijkheid vraagt veel van ondernemers en dus ook van accountants. Nieuwe verdienmodellen. Een andere relatie met je klanten. Zoeken naar de toegevoegde waarde de accountant heeft voor zijn klanten. Kortom: veel uitdagingen.
Tijdens deze lezing heb ik geprobeerd de accountants te prikkelen om anders te kijken naar hun (potentiële) klanten, hun toegevoegde waarde en hun verdienmodellen.
A teaser of Verteego’s capabilities to the attention of the world. Verteego is a sustainability platform for responsible companies only. Registration and trial is free!
This is a citizen science overview particularly aimed at graduate students enrolled in a new course at Arizona State University, aptly titled "Citizen Science." The author of this presentation, and course instructor, Darlene Cavalier, will talk students through its nuances and intersections with science, technology, and society.
The Invisible Technology, Will Nanotechnology Transcend BiologyUMinventor
Lecture given at the Natural Science Section meeting of November 2010 in Chicago. It explores the promises and dangers of Nanotechnology, how Ray Kurzweil\'s Singularity promises similar hopes to those of Spiritual Science but from a materialistic perspective. We then look at the future perceived by Rudolf Steiner where Humanity becomes the 10th Hierarchy and co-creators of the future.
Copyright and e-learning: understanding our privileges and freedomsJane Secker
Keynote at ALT-C on 8th September 2016. You can find out more from: https://altc.alt.ac.uk/2016/sessions/keynote-jane-secker/
Slides licensed under CC-BY-SA
Augmenting The Merlot Tradition With Multi User Virtual EnvironmentsSabine Reljic
MIC07 Oct9th. Presentation is composed of PPT slides and in-world meetings with a learning environment expert and a virtual environment instructor (meetings not recorded here). The goal of this presentation is to increase awareness in higher education of affordances present in current evolutions of web 2.0 tools such as participatory and connective technology in community experimentation in synthetic worlds like SL. Author was not yet knowledgeable of the SaLamander project then.
A presentation for Enriching Scholarship 2008 about trends in virtual worlds and applications of Second Life to academic and professional productivity.
Virtual World Education Overview for NewcomersThe AZIRE
The powerpoint to support a lecture to learners in VWMOOC18 (Virtual Worlds MOOC 2018) about the history of virtual worlds, their affordances and challenges, and how to learn more about Second Life in particular and virtual world education in general.
The video of this lecture is available on YouTube at this link: https://youtu.be/HOgsmfFX6zw
Technology and outdoor education: Some experiential possibilitiesJames Neill
There is a philosophical tension in outdoor education about the role of technology. On one hand, outdoor educators seek to distance participants from technology in order to provide “a place apart”. On the other hand, most outdoor education programs rely on a growing plethora of outdoor and safety gear, electronic navigation and communication, and transport technologies. Despite this, outdoor education tends to be somewhat unadventurous in its pedagogical use of technology. Instead, we might experiment with a wider spectrum of technologies (from low tech to high tech). By considering possibilities from across the technological gamut – e.g., from survival programs (low tech) to urban challenges with mobile electronic devices (high tech) – we might enrich our understanding of outdoor learning processes and engage different types of participants.
Presentation hosted by Dr. Cynthia Calongne, aka Lyr Lobo for the World Association for Academic Doctors (WAAD) 2020 Conference on Oct. 21-22, 2020. The conference is sponsored by Colorado Technical University, Conference Chair Dr. Rae Denise Madison.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
This is a citizen science overview particularly aimed at graduate students enrolled in a new course at Arizona State University, aptly titled "Citizen Science." The author of this presentation, and course instructor, Darlene Cavalier, will talk students through its nuances and intersections with science, technology, and society.
The Invisible Technology, Will Nanotechnology Transcend BiologyUMinventor
Lecture given at the Natural Science Section meeting of November 2010 in Chicago. It explores the promises and dangers of Nanotechnology, how Ray Kurzweil\'s Singularity promises similar hopes to those of Spiritual Science but from a materialistic perspective. We then look at the future perceived by Rudolf Steiner where Humanity becomes the 10th Hierarchy and co-creators of the future.
Copyright and e-learning: understanding our privileges and freedomsJane Secker
Keynote at ALT-C on 8th September 2016. You can find out more from: https://altc.alt.ac.uk/2016/sessions/keynote-jane-secker/
Slides licensed under CC-BY-SA
Augmenting The Merlot Tradition With Multi User Virtual EnvironmentsSabine Reljic
MIC07 Oct9th. Presentation is composed of PPT slides and in-world meetings with a learning environment expert and a virtual environment instructor (meetings not recorded here). The goal of this presentation is to increase awareness in higher education of affordances present in current evolutions of web 2.0 tools such as participatory and connective technology in community experimentation in synthetic worlds like SL. Author was not yet knowledgeable of the SaLamander project then.
A presentation for Enriching Scholarship 2008 about trends in virtual worlds and applications of Second Life to academic and professional productivity.
Virtual World Education Overview for NewcomersThe AZIRE
The powerpoint to support a lecture to learners in VWMOOC18 (Virtual Worlds MOOC 2018) about the history of virtual worlds, their affordances and challenges, and how to learn more about Second Life in particular and virtual world education in general.
The video of this lecture is available on YouTube at this link: https://youtu.be/HOgsmfFX6zw
Technology and outdoor education: Some experiential possibilitiesJames Neill
There is a philosophical tension in outdoor education about the role of technology. On one hand, outdoor educators seek to distance participants from technology in order to provide “a place apart”. On the other hand, most outdoor education programs rely on a growing plethora of outdoor and safety gear, electronic navigation and communication, and transport technologies. Despite this, outdoor education tends to be somewhat unadventurous in its pedagogical use of technology. Instead, we might experiment with a wider spectrum of technologies (from low tech to high tech). By considering possibilities from across the technological gamut – e.g., from survival programs (low tech) to urban challenges with mobile electronic devices (high tech) – we might enrich our understanding of outdoor learning processes and engage different types of participants.
Presentation hosted by Dr. Cynthia Calongne, aka Lyr Lobo for the World Association for Academic Doctors (WAAD) 2020 Conference on Oct. 21-22, 2020. The conference is sponsored by Colorado Technical University, Conference Chair Dr. Rae Denise Madison.
Similar to Getting Real About Our Virtual Future (20)
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Epistemic Interaction - tuning interfaces to provide information for AI support
Getting Real About Our Virtual Future
1. Getting Real About Our Virtual Future Dr Tim Jones Presentation to the JongeAkademie of the Dutch Royal Academy of Arts and Science 18th March 2010 1 Copyright Tim Jones 2010 communicatescience.com
10. Meetings & Conferences 10 Copyright Tim Jones 2010 communicatescience.com Screenshot from a meeting organised by Metanomics to discuss the University of Texas’s project in Second Life
18. Visualisation - Astrophysics Copyright Tim Jones 2010 communicatescience.com 18 3 Body Star Simulation Photos taken in SL at StellNova. Simulation run by the Meta Institute of Computational Astrophysics (MICA)
19. Visualisation - Astrophysics Copyright Tim Jones 2010 communicatescience.com 19 MICA Data Visualization Lab Photos taken in SL at StellNova. Simulation run by the Meta Institute of Computational Astrophysics (MICA)
20. Visualisation - Biology Copyright Tim Jones 2010 communicatescience.com 20 Standing inside a eukaryotic cell (credit Max Chatnoir, Genome Island)
22. Visualisation – 3rd party support Copyright Tim Jones 2010 communicatescience.com 22 Picture credit: Greenphosphor.com
23. Much still missing from virtual worlds: like ‘expression’ Copyright Tim Jones 2010 communicatescience.com 23 Poets ..or Scientists
24. Scientific Communities Copyright Tim Jones 2010 communicatescience.com 24 The SciLands Elucian Islands Village (Nature)
25. Useful links to science in Second Life SL Science Center Group https://sites.google.com/site/slscgroupsite/places SciLandshttp://www.scilands.org/ Data Vizualisation Wiki http://sldataviz.pbworks.com/ Meta Institute of Computational Astrophysicshttp://www.mica-vw.org/wiki/index.php/Publications Review of chemistry research, education, visualization in SL http://www.journal.chemistrycentral.com/content/3/1/14 Getting real about our virtual future. Nature Materials, Dec 2009, Jones. Doi 10.1038/nmat258http://www.nature.com/nmat/journal/v8/n12/index.html#cy Virtual Conferences becoming a reality. Nature Chemistry, March 2010, Welch et al doi:10.1038/nchem.556 http://www.nature.com/nchem/journal/v2/n3/index.html#cy 25 Copyright Tim Jones 2010 communicatescience.com
26. Copyright Tim Jones 2010 communicatescience.com 26 Goodbye Email: timjones@communicatescience.com Web: http://communicatescience.com SL name: Erasmus Magic Twitter: http://twitter.com/physicus
Video-conferencing avoids travel costs and carbon footprint
Model by Hiro Sheridan. Bond angles and lengths are realistic
Text from the exhibit:Newtonian gravity is an elegant theory that describes the force of gravity between two objects as: F = G * M1 * M2 / d^2 where G is the unviersal gravitational constant, M1 and M2 are the masses of the two objects, and d is the distance between the two objects. The direction of the force is towards the other object. This, together with Newtons Second Law of Motion, F = m * a where F is the force on an object, m is the mass of the object, and a is the acceleration of the object, give us everything we need in order to figure out how stars will orbit around each other as a result of the influence of gravity.When there are only two bodies (be they stars, or a star and a planet, or a planet and a moon, or a planet and an orbiting spacecraft), there exists an analytic solution to Newton's gravity for the orbit. That is, we can derive equations that will tell you where the objects will be, and how fast they will be moving, at any time in the past or future, just by plugging the time into the equations. However, for three or more bodies, there exists no closed-form analytic solution. As a result, the only way to figure out how the objects orbit around each other is to do a "numerical" solution.A numerical solution to a Newtonian gravitational problem works by figuring out where all the objects are, figuring out the forces on each object as a result of all the other objects, figuring out the acceleration as a result of that force. The velocity of the object is then updated as a result of the acceleration, and the objects are moved by their velocities, for a small "time step". Then the process is repeated. Do this over and over again, and you simulate how the objects will move through space as a result of their mutual gravitational interaction.The general problem is called the "n-body problem", where n indicate it's a number of objects interacting. The simplest case is n=3; that is the problem that the "3-body simulator" object is solving. See the associated instructions notecard for information about controlling the simulation.- Rob Knop (aka Prospero Frobozz) 2009/09/03Operating instructions:The 3-Body Simulator was written for LSL by Rob Knop -- Prospero Frobozz in Second Life. rknop@pobox.comThis is an collection of objects that numericaly solve the 3-body problem using LSL. It displays the results of this simulation in real time by moving around three stars. For more information about the 3-body problem, read the associated notecard, "The Newtonian 3-Body Problem".By default, the simulator keeps track of time in years (the number of years since the start of the simulation is shown in floating text over the computer object). 0.1m in Second Life corresponds to 1 AU as the stars move around. The units for position and velocity for the stars are AU and AU/year respectively. The unit for mass is Solar Masses.Next to the display in StellaNova is a box that will give you a personal copy of this 3-body simulator when you click on it.The simulator is composed of the "computer" (the grid-textured box), the star tank (the big, mostly transparent box), the three stars, and the control panels to the left of the star tank.The buttons in the upper-left corner of control the overall simulation. Right now, click "Reset". (You may need to click it more than once to get all the stars to the right place.) That should move all of the stars to their initial positions inside the tank. The other buttons on this panel : * Start : starts the simulation running * Stop : stops the simulation * Reset : reset the simulation to initial conditions * Dump Values : say in local chat the current position and velocity for the stars * Center Positions : Use this only when the sim isn't running. It will center all of the stars' initial positions around the center of the tank. * Center Momentum : Use this only when the sim isn't running. It will adjust the stars' initial velocities so that the whole system has 0 momentum (and thus won't drift out of the bounds of the simulation too fast). * >> Copy >> Init. Values : Use this after clicking one of the previous two buttons. It will copy the initial conditions to the Star Control Panel. Note that it takes a few seconds for the Star Control Panel to fully update after you click this button. (It can take longer if there is bad simlag.)To the right of these buttons is a larger control panel, with three subpanels labelled "Star 1", "Star 2", and "Star 3". These panels let you set the **initial conditions** for the stars. It does NOT control or display the *current* positions or velocities for the stars when the simulation is running. You can use this to set up the simulation to be what you want.To use it, adjust the stars' masses, positions, and velocities. Around each value are little "+", "++", "-", and "--" buttons that allow you to increase and decrease the displayed vaules. When you like the values you have set, click the "Update" button for that star. Repeat this for the other two stars.===> NOTE : if you do not click the "Update" button, the star values will not be sent to the simulation computer! This is true even though the stars themselves may have changed position or appearance.When you like your intial conditions, and have cliced "Update" for all of them, click "Reset" in the 3-body simulator controls, and then "Start" to start a simulation.OTHERCOMMANDSThe stars optionally may display a velocity vector that shows their current speed and direction of motion. Turn these on by typing each of the following into text chat: /1 SHOWVEL /2 SHOWVEL /3 SHOWVEL to hide the velocity vectors, type: /1 HIDEVEL /2 HIDEVEL /3 HIDEVEL If you do *not* want the star computer reporting the total energy in the system every so often when the simulation is running, type /16384 noreportenergyto turn energy reporting back on, type /16384 reportenergy You can change the timestep used for the simulation before starting the simulation with the command /16384 dt 0.001 0.001 years is the default timestep; replace 0.001 with another value.
Text from the exhibit:This is MICA's Data VisualzationLabThe visualization you see in there now is a 6-dimensional data set on stars, galaxies, and quasars in a parameter space of colors, redshifts, and morphology. The measurements are from a small subset of the Sloan Digital Sky Survey. The 3 spatial axes (XYZ) encode the colors; the size of the data points encodes their apparent brightness (magnitude); stars are gray, whereas quasars have the colors which encode theorredshift (~ distance); and galaxies have a color which encodes their stellar populations, roughly; stars and quasars are represented as spheres, and galaxies as cubes.We think that we can encode ~ 12 - 15 parameter space dimensions in further extensions of this methodology.This data rezzer script was written by Desdemona Enfield, in collaboration with Curious George.
Genetics sim associated with Dr. Mary Anne Clark (Max Chatnoir in SL) at Texas Wesleyan University. http://web.txwes.edu/biology/macclark/