![]() If we made a movie of the signals coming and going from the circulator, and ran the movie backwards, it would look different. It turns out a device like this must locally break time reversal symmetry. Such devices are used to separate very weak signals going to and from sensitive electronics, including in radar receivers, or in existing and future quantum computers. If the signal is extremely weak, so that additional noise is intolerable, then noiseless circulation is accomplished with a device called a circulator. Sorry audiophiles: a perfect amplifier is impossible. But there is a profound result in quantum mechanics (the “ no cloning theorem”) that means that amplification must always add noise, or randomness, to the signal. One way to do this is to use a network of amplifiers to switch signals as desired. This is pictured below: a signal entering port A of the device should be directed to port B a signal entering at B should go to port C and a signal entering port C should be directed to port A, clockwise around the device.Ī simple representation of a circulator. ![]() There are various applications where engineers want electromagnetic signals (such as light or radio waves) in a circuit to behave a bit like cars around a roundabout. It complicates the diversion of electronic and radio signals around a circuit. ![]() Microscopic reversibility presents an important technological challenge. How does this irreversiblity emerge from microscopic laws that are reversible? This remains a mystery. This is obvious in our everyday experience: a scrambled egg is not reversible. At the macroscopic scale, the entropy of the universe - a measure of disorder or randomness - always increases, so that there is an arrow of time. Unlike Doc Brown, we can’t make the clock tick backwards. Since the microscopic laws of physics appear to be unchanged under this mathematical transformation, we say the universe possesses time reversal symmetry, even though we cannot actually reverse time in reality. This mathematical transformation reverses the flow of time in our equations. Indeed, the basic equations of physics look essentially the same if we replace time with its negative. A beam of light travelling in one direction obeys exactly the same laws of physics as a beam of light travelling in the opposite direction. The collision of two billiard balls looks pretty similar in reverse even more so for the collision of two atoms. Source: Tom Staceīut at a microscopic level, the story is not that clear. Golf doesn’t look so convincing in reverse. This might seem obvious: people don’t usually walk or talk backwards spilt milk doesn’t spontaneously jump back into its carton a golf ball doesn’t miraculously launch backwards from the fairway, landing perfectly balanced on the tee at the same moment as the club catches it. You could then ask: “If I edited the movie to run backwards, and showed it to my friends, could they tell?” Suppose you make a movie of an event occurring.
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![]() ![]() You can open and edit your "List" type and "Share" type of file from here.įor delete: Choose a file to delete. Choose either "Open File.", "Delete Saved File."įor open: Choose a file to open. List and Share Types: How to Open/Delete File?Ĭlick the File button. **There are only two tools: Picker Wheel and Image Picker Wheel can save "Share" file. Share Type - How to Save?Īfter created your share link, you can click the option to "Save Link to File".Ĭhoose a file to save then name the file. **There are only three tools: Picker Wheel, Team Picker Wheel and Image Picker Wheel can save "List" file. You may tick "Include current settings" to include your current tool settings e.g. It will save your data with their latest statuses. You may also replace the same type of old file. Choose "Save List to File.".Ĭhoose a file to save then assign it with a name. Share type - this is the public data that everyone can open with the share link but only you have the edit permission. List type - this is the private data that only you can open and edit. There are two types of data you can save into the files which are "List" type and "Share" type. ![]() Feeling peace of mind without worrying the data loss.(Free Users - 15 Files available, Premium Users - Unlimited) *please take note the data might be lost if you clear the browser's history or when your browser's memory is overloaded.įor logged-in users, you have more benefits for the file storage. So, you can still access the same data the next time when you visit again at the same browser. Click the menu button (top right of the page) and sign up.įor non-logged-in users, by default, the inputs with the latest status will be saved automatically in your browser's storage. This is only applicable for logged-in users. File Storage - How to Save/Open/Delete File? Please continue to read on as there are still many great features behind you may use.Ĥ. Those are the basic simple steps for using the wheel spinner. There are other functions you may consider to use e.g. Picker Wheel announces the choice selected where its pointer finally is pointing at after the wheel spin.Ĭhoose one of the action modes for the choice selected. You can still change the input's value, or hide an input or delete an input.Ĭlick the Spin button from the random wheel to start spinning the wheel. All your existing inputs are also displayed and allowed for copy-paste. Use the view/import inputs tool which can directly add a list of text inputs. Insert the image input by clicking the image input button. Insert the text input one by one by clicking the + button or return key from your device. Below are the few steps for using the spinner to pick a random choice. It has many features which make decision-solving fun. ![]() Insert inputs, spin the wheel, and get the result. An online service for a random selection of options will prompt you for answers to any questions, will do it quickly, impartially and completely free of charge.Picker Wheel is a fast and easy random picker in only 3 main steps. With Wheel of Fortune, you get easy access to communications with the Goddess of Fortune. ![]() The movement of the wheel depends only on Fortune. It happens that a person slides from the top to the bottom or, conversely, suddenly rises. The ancients knew ─ not everything is subject to the will. The wheel symbolized life, the course of which depends on the goddess of fate. The ancient Romans depicted this goddess in the form of a woman holding a cornucopia in one hand and leaning on a wheel in the other - an essential attribute of Fortune. Her favor could be achieved by offerings and praises. I must say that Fortune was not distinguished by cruelty and vindictiveness. The favor of this lady was sought by mere mortals and doges, her holiday was celebrated on June 24, temples were erected for her, her images were decorated with domestic sanctuaries and were adorned with coins. The ancient Roman goddess of luck was a respected character in mythology. When you need to settle on one of several equivalent options, and any decision is uncritical, you can trust Lady Luck.ĭoubt about the choice of a dish? Not sure which movie to watch? Do you understand that you are equally ready to say "yes" and "no"? Deciding which household will do the dishes? Choosing a winner in a competition? In such cases, it is better to trust Fortune ─ to absolve yourself of responsibility without risking anything. The wheel of fortune is a service that helps you make a choice. ![]() ![]() How do you prevent hard water stains from clouding a glass shower door ? The only caveat? You may need to repeat the application 2-3 times for best results. And, if you’re in a rush, there’s no need to wipe away the excess liquid, it will evaporate on its own. It’s a degreaser that helps cut through and break down the components of the water stains. Just use a soft cloth to wipe down the doors with rubbing alcohol. “Letting your solutions do their jobs saves you elbow grease, time and costs.” How do you remove hard water stains without scrubbing? “It takes time for cleaning solutions to activate and tackle the stains,” she says. Instead, wait 20-30 minutes before finishing the task. Tip: Ip advises against wiping down the shower door right after applying your cleanser of choice. The slightly abrasive texture of the powder helps to lift and scrub away the water stains. No vinegar in the pantry? There’s another staple that will do the trick! “Make a paste using baking soda and water, apply it to the stains and let it sit for a while before scrubbing gently,” explains Muffetta Krueger, founder of Muffetta’s Domestic Assistants. Finish by rinsing with warm water and dry it with a microfiber cloth ( Buy from Amazon, 24 for $14.23). Vinegar’s acids cut right through the water stains. Leave on for 20-30 minutes before scrubbing with a non-abrasive soft-bristled brush ( Buy from Amazon, $15) or a super fine #0000-grade steel wool ( Buy from Amazon, 12 for $4.87). Mix equal parts water and vinegar in a spray bottle and spritz on your glass door, shares Ip. No Magic Eraser on hand? Here’s how to remove hard water stains from glass using a vinegar spray focal point/shutterstock ![]() ![]() ![]() The first character of a name must be a letter or an underscore. In the name box, type the name you want for the range. To use a named range for the options in your drop-down list, you start by creating one. Then select the destination cells and press Ctrl+V to paste it.Ī named range, such as Fruits, is easier to remember than a cell range, such as A2:A37. You can use the keyboard shortcut Ctrl+C to copy the cell. This way, text and numbers won't appear in the destination cells, so it doesn't seem like an entry was already selected. If it shows a text or number entry, press Delete to clear it. To use this drop-down list in other locations, copy it to other cells. Verify the cell contains a drop-down list with the options provided by the cell range. The range must be a single row or column, and click OK. It can be on a different worksheet, as in this example, giving you greater flexibility in configuring and protecting the worksheets. To provide the options in your drop-down list, click in Source and select the cell range that contains the options. Leave Ignore blank selected we'll cover this in the next video. Leave In-cell drop-down selected this enables a drop-down list in the cell. In the Data Validation dialog, set Allow to List this enables a list in the cell. Select a cell where you want a drop-down list.Ĭlick the DATA tab, and click Data Validation. ![]() To avoid the problem, let's use a cell range for the entries in the drop-down list. This can be a problem when someone types an entry instead of picking it from the list.įor example, typing YES in all capital letters returns an error, if error messages are enabled, which is the default. ![]() We'll cover managing drop-down lists in video 4.Ī comma-delimited list is also case sensitive. If you need to change the list entries, such as adding and deleting entries, this type of drop-down list is more time consuming to manage. You might use such a list if there are just a few values, and they are unlikely to change. We used a comma-delimited list in the previous video. You can use a comma-delimited list, a cell range, or a named range to define the options in a drop-down list. ![]() ![]() On just 14 miles of track, PATH carries nearly as many riders as NJ Transit does on 467 miles of track.Īs of May, about 50% of riders have returned to PATH compared with pre-pandemic figures, a rate similar to transit peers like the New York subway system (62% return) and NJ Transit’s commuter rail, which was at 50% last month.Īt its height in 1927, PATH - known in the 20th century as the Hudson & Manhattan Railroad - carried more than 113 million passengers from Newark and Hoboken across the river to lower Manhattan and eventually up to 33rd Street.īut since being acquired by the Port Authority in 1962, PATH has at times been a punching bag at the bi-state agency, as it requires subsidies from other profit-generating departments. More than 284,000 people used the system each weekday in 2019, and that number had been increasing on average more than 2% each year since 2012 as development boomed in Hoboken, Jersey City and Harrison. Every morning rush-hour train had an endless flow of passengers packed in, "sardine-like," as DeGraffe put it. PATH’s ridership was growing at a rapid clip before the pandemic. Studies are also underway to examine expanding stations in the Marion neighborhood of Jersey City and at Newark Liberty International Airport. It includes upgrading the signal system, buying more train cars and expanding train sets and platforms to fit another one or two cars, depending on the line. It's why DeGraffe is forging ahead with a $1 billion plan designed to address the root causes of delays. “I love that picture, because to me it shows such ingenuity and just forethought that’s just amazing."īut like most transit systems, PATH is merely a means to an end for commuters who want to get where they are going on time. “When you’re riding uptown, this is what you’re going through," DeGraffe said, pausing to point to the frame. When DeGraffe looks at the picture, she sees an impressive and complex system of tracks engineered in the 1800s that still manages to carry thousands of people under the river each day. $1 billion and 50% of ridershipĪcross from DeGraffe’s desk is a large, framed, black-and-white sketch that exposes PATH’s hidden tunnels and tracks that snake underground throughout Hudson County. "We’ve got to do that maintenance and while we have the lower volume, so it’s a balance of really trying to provide service for the volume of people and maintaining the system, which is key, or else you’re not going to have a system," DeGraffe said. She is now the person charged with navigating PATH through two seemingly conflicting problems: luring back half of its customers lost to new work-from-home patterns while leading a billion-dollar plan that will expand capacity and upgrade the 114-year-old transit system to prepare for expected development booms in the future. Throughout her 33-year career with the Port Authority of New York and New Jersey, DeGraffe moved her way up from construction inspector to overseeing some of the largest jobs in the tri-state area, including the construction of Newark Airport's AirTrain and several projects during the rebuilding of the World Trade Center. “He started to get out of line,” she said, but “I think it made him think a little bit more about the challenges that we have." She then gave him her number, saying, “Shoot me a text and let me know what your experience is if you’re having an issue on the train.”ĭeGraffe learned two valuable lessons: Always put the customer experience first, but don't give out your number to strangers. ![]() These people do this all the time,” DeGraffe recalled on a recent day in her corner office at 1 PATH Plaza in Journal Square.ĭeGraffe told the man who she was and said the sudden stop was due to a glitch in the train's new signal system that they were trying to work out. The man next to her in the crowded car turned and said, “I’m so sick of this train. JERSEY CITY - Shortly after Clarelle DeGraffe was named general manager of the PATH transit system in 2019, she was riding the train during morning rush hour when it came to a stop outside Grove Street Station. Watch Video: Video: General manager on what it was like to lead PATH through COVID ![]() ![]() For individual video games, each client has its own video game unique perspective of the world. ![]() Many clients can connect to the server at the same time, and will maintain an overview of the game world. Once installed, the player can start the client. The Game client is software that can be downloaded or purchased, and then can be installed on the computer of the player. In today’s world, online gaming becomes the most popular and turned into a growing industry, but one that is slowed by cheating that compromises the gaming experience and hence drives away players (and revenues). Actually, peer-to-peer is a combined gaming policy of today’s popular and outstanding action games. Instead, each “peer” gets the input streams of every player and decides on the results themselves. Peer-to-Peer: In the peer-to-peer model, you have no server.However, the difference is that they have to “talk to” the remote players through the residential internet of the hosting game player. ![]() In other words, they act like dedicated servers. Listen to server: The process of listening to servers is the same as a game client.Although, they actually support the required input and output for the required administration. Dedicated server: As the name suggests, dedicated servers tend to trigger game worlds and don’t support direct outputs or inputs.Let’s know about the different types of these servers. If a server fails, players can still enter the game through the other servers.Ī gaming host or server is a platform that is a good source of events in popular multiplayer video games. These servers are generally distributed around the world as it guarantees access to the game even if one of the login servers is not available. ![]() After you select a character from your character list, the login server acts as a road sign, guiding you to the correct game server. Whenever you are trying to connect, the login server is confirming the data of your account in the database to know who you are. There are several different servers that are required to play these games.īefore you can actually start playing, you need to get into the game. Players install a “client” for the game on their computer and then connect to the game servers via an internet connection. The most popular multiplayer games like World of Warcraft, Call of Duty or Mine craft, as well as thousands more online games, work basically the same way. The server needs to serve the client in order to give him the service, such as playing online with more people, and in this example, the server “connects” between the people even though they are not connected to each other, all of them are connected to the server. For more specifications we can say, it’s actually a local or remote server used by game clients to play multiplayer games. So, let’s get started with What is a gaming server?Ī gaming server is actually made to the run a game or more than a single game with multiplayer, for example – a server that hosts a game so you will run it in multiplayer mode, a server that runs a website for a community and etc. Now time to give an overview of the gaming server. In any circumstances, none of our shared web hosting plans is not allowed to use for BDIX connected gaming/FTP/Movie/Media server, as such operation as certain limitations and TOS are placed with our shared web hosting plan. So, if you or any visitor will send a query or browse anything from the cloud VPS or Dedicated server or FTP server hosted the content at XeonBD’s Bangladesh data center using an ISP that is also connected to BDIX, the connection to your server will be automatically made through BDIX.įor BDIX connected gaming/FTP/Movie/Media server a user must need to use a VPS or Dedicated server hosting plan and for Movie/Media/FTP server as well or for Movie/Media/FTP server, the user can also go with our FTP server hosting plan or also can go with the VPS or Dedicated server hosting plan. You don’t have to take any extra measures for BDIX bandwidth as XeonBD’s Bangladesh data center network is directly connected to BDIX. You can host your BDIX connected gaming/FTP/Movie/Media server using XeonBD’s Bangladesh data center hosted Cloud VPS or Dedicated Server or FTP server hosting plan. So, today we have decided to explain the matter a little more here in this blog post. But the draw back of this server is that only the broad band internet users don’t get the benefits.How can I host a BDIX connected gaming/FTP/Movie/Media server at XeonBD’s Bangladesh data center? – Now it is a very common question that we used to have from our different customers, as we are having our own physical data center in Bangladesh. In reality, BDIX FTP server has brought a lot of benefits to all data service providers, many internet users, internet service providers, etc. Just be careful about downloading from any source and scan the files before using. But those are not all and you will find a lot of other servers without any names. ![]() ![]() ![]() Sync creates a form of pitch-based distortion, whereby the wavecycles of two oscillators are locked together. When you load a Square or Pulse wave, for example, the Symmetry control acts as a Pulse Width control, which can be modulated to create the classical PWM (Pulse Width Modulation) effect. Look out for more in a future tutorialįocus On VA Element Controls The VA Element Control (found as part of the expanded Source options) has a number of detailed but important controls that relate specifically to the task of VA synthesis. Combined with the flexibility filter routing, it means that you really exploit hybrid sounds, layering different filters and effects as part of the same patch.Īs you’ll see, Alchemy is a deep and complex musical instrument, but one that really rewards time spent with it, thanks to an intuitive interface and an almost limitless set of possibilities to explore. ![]() In theory, you can route individual oscillators directly to the effects section (bypassing the filters) or in the same way, route individual filter outs directly to their own effect bus. In keeping with the flexibility across the rest of the synth, Alchemy provides a total of five effect buses (A, B, C, D and Main) each of which can be assigned its own chain of effects. If you’re using more than one LFO, AHDSR, MSEG and Step Sequencer note the ‘Current’ number parameter, which lets you step between the different iterations (like LFO1 and LFO2, for example).Īs evident on many of the presets, the Step Sequencer is a great way of adding movement and animation into your Alchemy patches, especially when you combine multiple track lanes and clever parameter routing. The programmable modulation sources (including the LFOs, AHDSR, MSEG and Step Sequencer) can all be accessed using tabs in the modulation area. Handily, this also provides a visual indication of how the depth interacts with the ‘base-level’, often reminding you to lower a parameter so it can be modulated correctly. Reduce the depth control, for example, and the band shrinks, having less of an impact on the destination parameter. What’s particularly useful is the orange banding that wraps around the selected parameter, which gives you an idea of the amount of modulation being applied. Simply click on the drop-down menu and you can select a modulation source from the comprehensive list. Adjust the filter cutoff, for example, and you’ll see Filter 1 Cutoff appear as a target in the modulation section. Mod Heaven To keep its operation intuitive, Alchemy’s modulation routing system works on a ‘last control touched’ principle. What makes Alchemy an exciting proposition is both the wealth of modulation sources available – including a Multi-stage Envelope Generator (MSEG) and Step Sequencer among all the usual Envelopes and LFOs – and the fact that they can be routed to any parameter within the synth. Modulation, of course, is the point at which any synthesizer starts to get interesting – mapping a variety of modulation sources (like envelopes and LFOs) through to any number of controls within the synthesizer. In the walkthrough (starting opposite), we’ll take a look at one example that creates a hybrid pad sound routing a single oscillator to two filters running in low-pass and band-pass modes respectively. ![]() You can also route the four oscillators so that they address either Filter 1 or 2, making it possible to create some unique hybrid effects. The output of the oscillators is then passed on to two multimode filters, which can work in either parallel or serial configuration, before being passed to the amplifier. In VA mode, the four sources can each be assigned a variety of starting waveshapes, including the classic Sawtooth, Pulse and Square as well as a variety of more esoteric, harmonically-complex waveshapes. We start with four Sources (in Alchemy-speak) that form our four oscillators – A, B, C and D. VA Basics Thanks to a clear and intuitive interface, the basic principles of VA synthesis on Alchemy are easy to understand. While it might not be as immediate an instrument as Retro Synth, the sheer dexterity and sonic power of Alchemy’s VA engine is well worth closer inspection. At its heart, however, Alchemy has a surprisingly easy-to-use virtual analogue (VA) synthesis engine, capable of producing many of the distinctive synthesizer sounds we’re used to hearing on a Moog, ARP or classic Roland synthesizer. With Granular, Additive and Formant-based synthesis modes, Alchemy is a complex and vast synthesizer that can take years to truly master. ![]() |
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