Si (s) + 2 Cl 2 (g) → SiCl 4 (s) (Silicon (Vl) chloride) Si (s) + 2 F 2 (g) → SiF 4 (s) (Silicon (Vl) fluoride) The metal reacts with all Halogens to form Silicon (Vl) halides: If silicon is heated above 1400 o C, it reacts with the nitrogen, and forming Silicon nitrides: If silicon is heated above 900 o C, it reacts with the oxygen, and forming Silicon dioxide: Silicon doesn’t react with Air under normal condition: Isotopes: 28 Si 29 Si 30 Si 31 Si 32 Si Isotope Lattice constant: 543.07, 543.07, 543.07 pmįace Centered Diamond Cubic (FCDC) Reactivity of SiliconĮlectron affinity: 133.6 kJ/mol Nuclear Properties of Silicon Ionization energies: 1st: 786.4 kJ.mol 2nd: 1577 kJ/mol 3rd: 3231.5 kJ/molĬrystal structure: Face centered diamond cubic Sound Speed: 8433 m/s Atomic Properties of Silicon Molar magnetic susceptibility: -0045×10 -9 m 3/mol Physical Properties of Siliconĭensity: 2.33 g/cm 3 (In solid) 2.57 g/cm 3 (In Liquid at M.P) Mass magnetic susceptibility: -1.6×10 -9 m 3/kg Volume magnetic susceptibility: -0.00000373 Magnetic susceptibility (x mol): -3.9×10 -6 cm 3/mol Thermal conductivity: 149 W/(m∙K) Electrical properties of Siliconīand gap: 1.12 eV Magnetic Properties of Silicon When a very small cation combines with a very large anion, the resulting compound is less likely to exhibit the characteristic macroscopic properties of an ionic substance.Silicon Electron Configuration Thermal Properties of Siliconĭebye temperature: 645 K (701.33 oC, 371.85 oF) The larger the anion, the farther it is from the sodium ion, and the weaker the coulombic force of attraction between them. The sizes of singly charged cations, for example, increase in the following order: Li + NaCl (808☌) > NaBr (750☌) > NaI (662☌). If we move down any of the columns, ionic sizes increase due to the increasing principal quantum number of the outermost electrons. Each row in the figure corresponds to an isoelectronic series involving a different noble-gas electron configuration.Īs we move from the more negative to the more positive ions in each row, there is a steady decrease in size. For any electronic series, such as H –, He, Li +, Be 2 +, in which the nuclear charge increases by 1 each time, we find a progressive decrease in size due to the increasingly strong attraction of the nucleus for the electron cloud. Species which have the same electronic structure but different charges are said to be isoelectronic. As we move across each row, the radius of each circle decreases. The final row has T e superscript 2 negative to T l superscript 3 positive. Fourth row has S e superscript 2 negative to I n superscript 3 positive. Third row has S superscript 2 negative to G a superscript 3 positive. The second row is N superscript 3 negative to Al superscript 3 positive. The first row is H negative to B e superscript 2 positive. Each row consists of elements as well as ions which have the same number of electrons. The elements of the periodic table are shown as circles with different radius. Ions in the first row of this figure, H –, Li +, and Be 2 +, all have the same 1 s 2 electronic structure as the helium (He) atom, but differ in size due to the different number of protons each has in their nucleus. This relationship is evident in the following figure comparing ionic radii. The size of an ion is governed not only by its electronic structure but also by its charge.
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Newly-issued library cards are valid for one (1) year. Because you are legally responsible for everything borrowed on your library card, we require you to show your card or ID to protect you from someone falsely giving your name, or the staff accidentally charging your account with someone else's materials. To check out materials, you will have to provide either your library card or your photo ID. Sorry, we do not accept credit or debit cards.ĭo I need to show my library card to borrow library materials? NOTE: Currituck County Libraries can only accept cash or checks for payment of fines and fees. renew your card by calling or stopping by to verify your information.return overdue materials to a library or book drop, and/or.reduce the amount of fines owed to below $5.00, and/or.When a card is blocked, nothing can be borrowed on the card. the cardholder has lost items outstanding on the account, and/or.the cardholder has items overdue more than 5 days, and/or.the cardholder has accrued more than $5.00 in fines, and/or.How did this happen, and what do I need to do to get it unblocked? You are legally responsible for any items borrowed on your card until you have notified the library that your card has been lost. Replacement cards can be purchased for $1.00. If you lose your library card, call the library as soon as possible and inform the staff of the loss. I lost my library card, what should I do? Please note that in doing so, you are accepting responsibility for any loss or damage for any items checked out by your authorized user. calling the library to let us know the name of the person you are authorizing use to, so we may note it on your account.However, if you are an adult patron and you wish to authorize another person to use your card, you may do so by: You are legally responsible for anything checked out on your library card, so by default, we limit library card use to the person to whom the card was issued. You may also return items owned by any library to any library within the EARL system as well. Yes! Library cards issued at any of the eight (8) libraries in the East Albemarle Regional Library System may be used at any library in the system. These include the Pasquotank Library, the Camden Library, all three Currituck County libraries (Barco, Corolla, and Moyock), and all three Dare County libraries (Kill Devil Hills, Manteo, and Hatteras). Can I use it at a Currituck County Library? I got my library card in Pasquotank/Camden/Dare County. the parent/guardian must provide photo ID/proof of residency and sign the application agreeing to be responsible for all items checked out on the minor's card.Ĭlick here to access the library card application.both the parent/legal guardian AND the child must be present at the time of application, and.In order for children under age 18 to get a library card: If your photo ID does not have your current address on it, you can bring a recently-received utility bill (addressed to you) as proof of address. Please have your library card or Photo ID handy.Library Card FAQ How do I get a library card?īring a government-issued photo ID and proof of Currituck County residency to any public library in Currituck and fill out an application. Scan or enter your library card number and password.Ĭall or visit a library branch.The automated renewal line is available 24 hours a day, except between 7:00 am and 7:30 am.ĭownload the PGCMLS app to your mobile device for iOS and Android.It is your responsibility to renew and return materials on time. You may wish to mark down your new due date(s). If the renewal is successful, a new due date will be indicated by the renewal operator.You will need to enter your library card number and password during the process. Call the automated renewal line 30 and follow the prompts.You may wish to mark down or print your new due date(s). Then click on the Back link to view your new due date(s). Wait for the renewal response screen to confirm that your renewal was successful.Select Renew All Items or individually check the items you wish to renew and click on Renew Selected Items.Enter your library card number (no spaces) and your password.The new renewal due date will be the full loan period added to the original due date. All items will automatically renew three days before they are overdue (up to three renewals if there are no reserves on the item). If you specialize in monochrome, they may not be the best choice.ģLCD projectors use a trio of aligned LCD panels. However, that colour wheel can cause an artifact known as rainbow fringing (particularly on cheaper models), where colour flashes can be seen in areas of high contrast. They tend to be competitively priced and because they use a single device, can deliver very sharp pictures. DLP models use a digital micromirror device (DMD) allied to a spinning colour wheel to create images. There are two key projection technologies. The technology is more pricey, though is generally used in top-range, home cinema models. LED lighting is gaining popularity within the projector market, especially in portable models, given how compact LEDs can be – note that, while LED models will last for much longer than UHP ones, though, brightness output tends to be comparatively lower.īigger spenders should consider the laser projectors in this guide, as they offer more vivid and consistent colour over a longer period of time (over 20,000 hours). UHP lamps are the closest thing to a standard lighting system for projectors, given their high brightness capability, but lamps only last a few thousand hours, and tend to degrade gradually over time, affecting the colour output. There are several lighting technologies that can be used to power a projector. Bluetooth connectivity in some models will allow you to display photos from smartphones, tablets, and other source devices through your projection too. Many projectors will contain USB ports to plug in a flash drive, with basic smart platforms to help navigate folders containing photos and other files. Of course! Projectors are like any kind of display technology, in that any of its inputs or connectivity options can be used to play photos or videos from compatible devices. Either way, this is the best looking portable projector out there, at least on the outside. Image quality is sufficient for the price, though even in dark environments it struggles to show any shadow detail. Alongside the inputs above, it comes with a Bluetooth speaker mode (x2 3W drivers) that shuts off the picture and plays music wirelessly from a source device like your smartphone, effectively turning the Solar Portable into a two gadgets in one. You'll get a single HDMI 2.0 port at the back, USB 2.0, as well as a USB-C charging port.Īt 400 lumens, the brightness isn't mind-blowing, but it's a small price to pay for the great functionality of this portable projector. This great-looking budget beamer sticks to 1080p resolution, a wireless form factor, and a small pedestal stand to help elevate it to a 13-degree angle. The Anker Nebula Solar Portable may just be too stylish for a portable projector. It’s perfect for club houses and larger rooms. The projector works from a distance of just 6cm, but we could effectively fill the best part of an entire room wall from 48cm.Īn LCD projector, it uses a T 0.67-inch 3LCD device with a 16:10 aspect ratio. There are three HDMI inputs, as well as VGA, USB and composite video. This is no compact, and it’s a bit on the noisy side! That’s because it’s based on the brand’s EB corporate UST projection range. With a laser light engine, it offers ease of use and longevity, and is amazingly bright at 4,000 lumens, more than bright enough to be used in moderate ambient light. An Ultra Short Throw model can be positioned just centimetres from a wall or screen, and still cast a huge image.Įpson’s EH-LS100 is one of the most advanced UST projectors out there. Not everyone will have room for a conventional projector, but that doesn’t mean you can’t supersize your images. Fighter Class Features Hit Points: d10 hit points is standard for martial classes. I also omit the use of “Flaws” since they allow a massive increase in power with essentially no cost to the character. Those options also tend to be wildly unbalanced and rarely receive errata. I am of the opinion that those options are intended to be limited to campaigns run in those settings, and as such they don’t really apply to a generic campaign. It’s important to note that I generally omit campaign-setting specific content. Blue: Fantastic options, often essential.Red: Bad, useless options, or options whichĪre extremely situational.For help identifying sourcebook abbreviations, see my Sourcebook Abbreviations Guide. Because so little of 3.5 is available on the SRD, I will attempt to tag items with a superscript indicating their book of origin. RPGBOT uses the color coding scheme which has become common among Pathfinder build handbooks, which tend to be more consistent than 3.5 handbooks. Multiclassing and Prestige Classes Disclaimer.Instead, it will provide general advice which should apply to most Fighters. The Fighter excels as a Defender and Striker, but completely lacks the ability to fill other roles.īecause Fighters are exceptionally diverse, this handbook will not present a specific build. However, because 3.5 rewards specialization Fighters tend to pigeon-hole themselves into a small set of combat options, and when those options are ineffective they frequently find themselves useless in combat. The Fighter is one of the most iconic classes in DnD, and with considerably more feats than any other character the Fighter has a ton of room for customization. New to Yahoo calendar? Avoid scheduling snafus with this guide. Learn how to take full advantage of your Yahoo calendar, including how to sync with your mobile device. Click Choose file > the file that contains your events > Open.Find out how to set up a Yahoo calendar, send meeting invites, and manage to-do lists.Next to Other calendars, click the drop down arrow > Import calendar. Click More Options > Date Range > Whole calendar, Detail -> Full details.Right click on the calendar you want to export > Save as > iCalendar format.I tried the ical app that you suggested but unfortunately could not get it too work I sync my phone with outlook via Kies so I followed these instructions which I found on the google calendar options and have successfully exported my calendar from outlook to google, worked perfectly! This is what it told me to do (bare in mind you would have to have your Samsung calendar synced to Outlook via Kies): I have just switched from outlook to gmail and google calendar, could not work out how to export my Samsung calendar to google. Of course that comes from decades of developing and using world wide tools, teams and support orgs. Gee wouldn't it be nice if some one wrote a non-root transfer item or included it with their calendar instead of adds Were the normal reality then the amount of data transfered on the net etc, and the size of tech support teams needed would be drastically reduced. If simple logic was used to design such software, assuming items like low speed access, older devices etc. It took about 2 hours for 3 years data which was less than half of the time wasted with Verizon & Samsung. Shareable one (Google account for instance) & did a save. starting at the earliest search item found: I did an edit and changed the Calendar account to a I then turned my target destination account calendar back on with my locals & did a search for commonĬategories like "Basketball", Dr., Exercise, "Medical" etc.Į. Month establishing a pattern of common categories.ĭ. After BC imported all my calendar data I turned off each calendar to see what my local calendar had in that (I needed medical records from the past.)Ĭ. Is today and the future all you need to do you need the past Here's what finally & painfully worked for me:Ī. Searching the web worked yet individual phones/apps have their own problems so be active on your own or findĪ friend and stay interactive here or on similar sites.Ħ. They have no clue even the level 2 support teams failed. when all else fails ignore the Samsung/Verizon support. This kept me from installing any of the Samsung apps like Sync on my SII.ĥ. Using another phone WiFi as a link to transfer many apps may show it already installed because it is recorded or installed on the download phone. Make sure if using Kies that it is downloaded & installed on your phone & computer before changing accounts.Ĥ. make sure the Account is transferred to that other account (Google) before disabling the phone account.ģ. So make entries using a Google or another account, not the local.Ģ. Or so calendar entries saying local-private entries cannot be transferred to the new phone. It would solve the entire problem if either the app writers or Samsung popped up a message on the first 10 Starting with my SII with 4.1.2 android trying to move to my S5, here are my suggestions and my solution.ġ. This was a big help after enduring weeks of attempts on my own and suffering hours of attitudinal warping by Verizon, Samsung, Google and other "support orgs." Along with this, we will go through various examples of simple harmonic motion. Here, we will derive the simple harmonic motion formula. The restoring force of the simple harmonic motion is always directed towards the mean position. The simple harmonic motion definition is that it is a periodic motion in which the restoring force on the object is directly proportional to the displacement of the object from the mean position. One such type of periodic motion is simple harmonic motion or SHM. We find the motion of these objects keeps repeating themselves. Another notable research project is the work of the Birmingham Solar Oscillation Network (BiSON), who focus on measuring oscillations in the sun (helioseismology) and nearby stars (astroseismology) to learn about their internal structures.We see various types of motion in our day-to-day life, such as the motion of the blades of a fan, motion of the hands of a wristwatch, motion of the wheels of a car, etc. There the detectors are so sensitive that careful modelling and minimisation of the surrounding vibrations and noise are crucial. At the University of Birmingham, one of the research projects we have been involved in is the detection of gravitational waves at the Laser Interferometer Gravitational-Wave Observatory (LIGO). Simple harmonic motion is important in research to model oscillations for example in wind turbines and vibrations in car suspensions. Whilst simple harmonic motion is a simplification, it is still a very good approximation. This means that effects such as damping, which acts to reduce the amplitude by removing energy from the system, are a good example of where simple harmonic motion contributes to improving our day-to-day lives. The vibrations and oscillations that surround us in our everyday lives are generally much more complicated than those we encounter in simple harmonic motion. In this episode we look at generating and measuring waves and the use of appropriate digital instruments. In the Laboratory Confessions podcast researchers talk about their laboratory experiences in the context of A Level practical assessments. Assuming simple harmonic motion, the periodic nature of these systems mean that there should be no excuse when it comes to taking multiple measurements! Laboratory Confessions It can also be useful to use a pin or tag to act as a fiduciary marker showing the equilibrium position. To obtain more accurate measurements of the spring constant and the gravitational acceleration, repeated measurements should be taken using various pendulum lengths and masses.Īlso, measuring period over a longer time frame (and hence over multiple oscillations) will increase the accuracy since the human error will be a smaller fraction of the recorded time. To improve the accuracy on the period, the timings can be taken over multiple oscillations and by averaging over several measurements of the period. In this experiment one of the major sources of error is down to the human reaction time when measuring the period. The experiments described here demonstrate the use of a mix of analogue and digital apparatus to measure quantities including mass, length and time. The period of a simple harmonic oscillator is also independent of its amplitude.įrom its definition, the acceleration, a, of an object in simple harmonic motion is proportional to its displacement, x: Note that in the case of the pendulum, the period is independent of the mass, whilst the case of the mass on a spring, the period is independent of the length of spring. Described by: T = 2π√(m/k).īy timing the duration of one complete oscillation we can determine the period and hence the frequency. Mass on a spring - Where a mass m attached to a spring with spring constant k, will oscillate with a period ( T). Described by: T = 2π√(l/g), where g is the gravitational acceleration.Ģ. Pendulum - Where a mass m attached to the end of a pendulum of length l, will oscillate with a period ( T). The two most common experiments that demonstrate this are:ġ. Since simple harmonic motion is a periodic oscillation, we can measure its period (the time it takes for one oscillation) and therefore determine its frequency (the number of oscillations per unit time, or the inverse of the period). Simple harmonic motion is a very important type of periodic oscillation where the acceleration ( α) is proportional to the displacement ( x) from equilibrium, in the direction of the equilibrium position. Oscillations are happening all around us, from the beating of the human heart, to the vibrating atoms that make up everything. Why is simple harmonic motion so important? Don't think twice, if you're in need of good concept maps download CmapTools, it's free. Users can then modify text-box shapes, colors, fonts, link shapes, or add a background image and attach resources to each shape. IHMC CmapTools 6.04 is available as a free download on our software library. El software CmapTools de IHMC permite a los usuarios construir, navegar, compartir y criticar modelos de conocimiento representados como mapas conceptuales. A CmapServer is identified within the CmapTools network by its 'serverid', its unique identifier.This identifier is defined in the 'serverconfig.txt' file, located in the 'bin' directory, which is under the directory where the CmapServer is installed. Making a concept map is simple, just insert diagrams by double-clicking on your screen background and drag arrows and lines wherever you want. How to move a CmapServer to another location. There are tons of available public servers that will store your maps and all of the attached files associated with it. Also, sharing your concept maps and its resources online is a very useful feature. This allows for interactive diagrams made by this tool that allows you to interact with content through your browser. Dont think twice, if youre in need of good concept maps download CmapTools, its free. What makes CmapTools stand out from the rest is its ability to create online concept maps that include attached files and links to other sites. Concept maps tend to be read progressing from the top downward. A concept map showing the key features of concept maps. Figure 1 shows an example of a concept map that describes the structure of concept maps and illustrates the above characteristics. There are tons of apps out there designed to help you develop concept maps such as DIA (GNU) or InfoRapid KnowledgeMap (Shareware) but not all of them are as practical and fully featured as CmapTools. Sometimes these are called semantic units, or units of meaning. Connected Mind (free Chrome app/ paid Android/iDevice apps): Top tip: Read before use.Concept maps are a phenomenal tool when it comes to explaining complex theories and proposals that are made up of a number of main ideas that relate to others.MindMeister (3 map limit for free version):.LucidChart (online, free for single use):.Draw.io (used to be called Diagram.ly) (online, free):.Students show particular types of relationships between academic texts (using different colours and/or arrows for each type): One way this could be used is to show the way that academic texts interrelate. IHMC CmapTools program empowers users to construct, navigate, share and criticize knowledge models represented as concept maps. Presenting ideas in the form of a concept map or network diagram is a good way to show relationships and the interconnectedness of items. Concept maps, network diagrams, relationships, links, interconnectedness, connections Whitehead is correct that perceivable happenings always involve relatively large numbers of material particles interacting over a period of time, especially biological events. In PNK Whitehead calls the instantaneous and infinitesimal points of special relativity "event-particles." (p.33) He then says that the events of his theory will include large numbers of "event-particles" because his events are extended in both space and time, an idea he calls "extensive abstraction."(p.101) It is only these finite volumes of space and durations in time that can be perceived or apprehended by an observer. impressed by Whitehead's analysis of events in space and time in special relativity as organic "occasions." are prominent in debates about the role of quantum mechanics in consciousness and panpsychism.īefore he came to Harvard, Whitehead wrote three important books while at Trinity College, Cambridge, that put forth his speculative theories on space, time, matter, and energy - An Enquiry Concerning the Principles of Natural Knowledge (PNK, 1919), The Concept of Nature (CN, 1920), and Principle of Relativity (PoR, 1922), Although logical positivism and later analytic language philosophy overwhelmed Whiteheadian "process" thinking in philosophy departments, Whitehead's "process theology" has grown strong in divinity schools around the world. Russell and Quine would become giants in the twentieth-century fields of logical positivism and logical empiricism. thesis on the Russell and Whitehead Principia Mathematica. But in philosophy and theology, Whitehead is best known as a philosopher whose later work at Harvard included his Process Philosophy and the subsequent development of a Process Theology.Īt Harvard, Whitehead supervised Willard van Orman Quine's Ph.D. Henry Quastler Adolphe Quételet Pasco Rakic Nicolas Rashevsky Lord Rayleigh Jürgen Renn Giacomo Rizzolati Emil Roduner Juan Roederer Jerome Rothstein David Ruelle Tilman Sauerīiosemiotics Free Will Mental Causation James SymposiumĪlfred North Whitehead was an English mathematician (best known among scientists for his work with his student Bertrand Russell on the Principia Mathematica). Some of our users have put together a document about what to do if you're travelling here for the first time. Translation entails first transcription to turn audio to text. We support translation from and into 100 languages. Planning to work in Hong Kong? Here's a community-compiled list of tips! Chinese, Cantonese (Traditional, Hong Kong) Its never been easier to reach more people, including those who speak a different language Translate your audio, video, and subtitles with Simon Says advanced A.I.
To start playing a game, select it from your Oculus Quest 2’s library, and it will begin streaming to your TV.Īlso Read | Why Can’t Enable Developer Mode Oculus Quest 2? 10 Things You Should Know. Your Oculus Quest 2 will now be connected to your Chromecast with Google TV. Select your Chromecast with Google TV from the list of devices.ĥ. Set up AirScreen on the receiving devices only, with no need to install it on the sender devices. On your Oculus Quest 2, go to Settings > Connected Devices and select Cast.Ĥ. Turn on your TV and select the input that your Chromecast is connected to.ģ. Plug the Chromecast into your TV’s HDMI port.Ģ. To set up your Chromecast with Google TV, follow these steps:ġ. All you need is a Chromecast with Google TV and an HDMI cable. With a Chromecast with Google TV, you can connect your Oculus Quest 2 to your TV and play games from your headset. One option is to use a Chromecast with Google TV. You may be wondering how to play games from your Oculus Quest 2. How can I play Oculus Quest 2 from my headset? You can also use it to watch your favorite movies and shows in a virtual theater. Quest comes with two controllers and gives you access to over 100 VR games and apps. I want to add this to another TV in my house and am trying to decide between upgrading my old Roku to the Roku Ultra or buying a new Google Chromecast. It has a built-in processor and graphics card, so all you need is a TV with an HDMI port. One of the features of Oculus Quest is the ability to cast what the user is seeing in VR to another device like a phone or a TV via Google Chromecast. Press the white circle on your controller, then locate the Home Menu on the bottom of the screen. Ensure that both of your devices are ready to share and receive data, so there are no hiccups along the way. Turn on your Oculus Quest 2 Headset and the TV. Oculus Quest is a standalone VR headset that doesn’t require a PC or console. Steps For Casting From The Oculust Quest 2 Headset. Reconnect Headset To Wi-Fi The Wi-Fi tech on your Oculus Quest headset might also cause issues with the casting feature, so disconnect your Oculus headset from your Wi-Fi and try connecting it again. You can also use it to cast your favorite shows and movies from your phone to your TV. Wait for the headset to download and install updates, and try using the casting feature again to see if your issue was fixed. It comes with remote control and gives you access to over 4,000 apps and games. These devices allow you to connect your gaming console directly to your television, giving you access to a wide variety of games and apps.Ĭhromecast with Google TV is a streaming device that plugs into the HDMI port on your TV. If you want the most immersive gaming experience possible, consider using Chromecast with Google TV or Oculus Quest. |
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