![]() The best way to see if you qualify and for how much is to use the EITC Assistant. Visit the Income Limits and Range of EITC page to see, at a glance, the EITC income limits and credit amounts. Workers without a qualifying child could be eligible for a smaller credit up to $538. The EITC can mean up to a $6,660 credit, depending on your income, filing status, and number of qualifying children. If you worked in 2020 and had income of less than $56,844, or if you worked during 2019 and made a similar amount, you may want to check your eligibility for the EITC with your 2019 income and again with your 2020 income to determine which amount produces a larger credit. Military and clergy should review the IRS’s Special EITC Rules because taking this credit may affect other government benefits. Therefore, having the opportunity to elect to use your income information from 2019, instead of 2020, when calculating eligibility might be beneficial for some taxpayers. Unemployment benefits do not count as earned income. This includes taxpayers who have their own business or farm. This means you must have income from working for someone or working for yourself. To be eligible, you must have earned income or certain disability income. The EITC is complex and it varies by income, family size, and filing status. The EITC is a refundable tax credit which means workers may get money back, even if they owe no tax or the amount of the credit exceeds the amount of any tax owed. ![]() For more information about this new choice on your tax return, see the instructions for Form 1040 for line 27, or our NTA blog.īelow is some information and tools to help you see if you might qualify for the EITC. You may elect to use your 2019 earned income to figure your 2020 Earned Income Tax Credit (EITC) if your 2019 earned income is more than your 2020 earned income. ![]() New for taxpayers this year is a provision under the Taxpayer Certainty and Disaster Tax Relief Act of 2020.
0 Comments
![]() Over a year ago used Carbon Copy Cloner to clone HS onto another volume of the internal SSD (AFPS) then using Apple downloaded Mojave installer, upgraded. I downloaded High Sierra from Apple using an Imac running Lion. Thank you UtterDisbelief for your interest. Ps I do not sync with any other calendar. So I am wondering whether it is something to do with a kext file or a setting in EFI/Clover/ist that needs amending. I have recreated Mojave from scratch (build 18G103) on a separate bootable hard drive but it doesn’t solve the problem. I have tried every one of the options of SMBIOS in both High Sierra and Mojave to no avail. ![]() When I ran High Sierra, before upgrading, I put SMBIOS as Imac 14,2 but with Mojave had to put SMBIOS as MacPro6,1 to make Preview open jpeg files. Calendar though will not respond and needs to be Force Quit. When I boot into High Sierra it behaves slightly differently with CPU going to 90% and when I stop typing or press Return the Activity Monitor shows Calendar using perhaps 1% of CPU. Then I randomly hold down keys so entering a very long title and watch the CPU usage go up. I create an event and before entering the event title I make it All Day, Repeat Daily, Forever. I have now discovered a way to force it to misbehave, which has allowed me to try and test things more easily. This error has been running for over a year and I have pages of notes on things I have tried. Eventually shows “calendar not responding” in Activity Monitor and only way out is to Force Quit. When I enter a new event, Calendar.app sometimes uses as much CPU as it can, reaching 90%. ![]() My current MacOS is Mojave and it is up to date. Building a CustoMac Hackintosh: Buyer's Guide ![]() I only got a few collections yet, but got a total of the following stats:Ĭrit res +1, sp +54, hp + 260, crit rate +2, mdef + 2, evasion +1, accuracy +1, sp reg +3, magic amplification + 4, hp reg +5, matk+ 4, def +1, atk + 2įirst of all find one of the collections in a map of your choice. Those collections give you diffrent benefits. ToS is a nice game if you want to relax after work and shut down from the stress of the day.Įxploring is really rewarding in this game. Rushing to max level, which is right now 280 - and going to be 600 - can definitely be fun, but after some hours I learned that I don`t think that it`s the right way to play this game. During the first few weeks of the early realease 9 out of the top 10 players on the server I played on have been swordsman. It is called haha-man in korea for a reason. We are not even talking about swordsmans here, because if you want something easy to play just take that. Right now i am level 131 and I must say that was not very hard to reach with wizard, while I struggled a lot with archer around these levels. It is basically a glass canon build, that is not very difficult to pull off, since you just one-shot everythign while grinding. With that I got a solid AoE build with some obvious flaws, but strong damage. It does not only look great, but also deal some reasonable damage. Sometimes you hit a mob of monsters and sometimes you hit nothing, which makes it a nice combination with Hail, since I feel the same way about that skill, but Electrocute is what I am mainly using anyway. I like Prominence a lot, but I feel like it lacks reliability. I also went for a level 10 reflect shield, since I felt it might help solo leveling.įor Elementalist I am rolling with Electrocute lvl 15, Hail lvl 10, Prominence lvl 5, Meteor lvl 10 and Rain lvl 5. the other spells seem not that important to me, but one really needs the Quick Cast, which has an attribute that gives a 50%+ on your dmg. For Wizard I went with Magic Missle, which is really strong. In the beginning I went only with the 4 INT and 2 SPR and only added more CON when I felt that surving got more difficult. My stat distribution is 1 CON every 2 SPR and 4 INT. You have a good amount of damage and nice SP reg. 3 times Wizard, 3 times Elementalist and one time Warlock for a late game damage build with lots of AoE (Area of Effect damage). This time on a new server, fresh start, hooray! After I left the cleric behind I switched to wizard. Ok, that was my little rant, now back to where I left off. ![]() Maybe I will ask if I can transfer an item, I bought with TP on a diffrent server can be transferd to another server. I think this makes me think of IMC as a more greedy company and usually that`s not too healthy for a game. Also the prices of the real money-shop are horrible, you could argue that it is at least not pay to win, since those exp tomes barely do anything, but still, I think it would be smarter to lower the costs, so more people would buy something. I am mostly sad because of the lost TP, which makes me think less good of IMC overall. But overall I feel a bit disappointed with all the replies, even though the support team answered really fast, which I think is a good thing. A few days ago I asked what happened to it and got the answer that it was actually supposed like that, which seems a bit dishonest to me, but I won`t judge, because I obviously can`t know the details and I also did not invest too much time into researching this. They even announced it on their own website. I think the issue with the teamsize is what they actually turned from a bug into a feature, because when I first submitted a ticket I saw that there was an issue with the pet taking up one character slot. My TP were not refunded, even though I did not use them, which I find really harsh. The team name issue was solved easily, since everyone had it. Two for team name change, one for lost starting TP and one for team size, since one slot was occupied by the pet. So far I have turned in 4 support tickets. While I am at it, I will actually explain what this is about. I don`t know if IMC fixed this yet or made it a feature. What made me turn away from cleric was a bug in the itemdistribution system during early release, where you would not get any items if you played full support. For the cleric I wanted to make a full support type and later switch to oracle. It feels really strong but falls a bit off later into the game. Archer I found to be really fun in the early levels. ![]() So first my thoughts on archer and cleric. After experiencing the power of swordsman I wanted to have a character that is able to merge into almost any party and also not be underwhelming. I was busy exploring the wizard, archer and cleric tree, just to find out that I love wizards. ![]() Other idea: Give Mech a unique special ability that drains its duration to use, maybe make it semi random which one you get? This makes Mech more exciting/ interesting and lets you get out of the Mech if you need to. Maybe give a few seconds of invicibility frames once Mech dies and give it a double/ triple effect on all powerups/ special abilities in the Mech? So lightning strikes twice as fast, poison bullets. I struggle to think of another game of the type that allows for such unbridled chaos and fun, and just like chocolate-covered popcorn the only danger is overdosing on the richness. though not a permanent but a temporary or conditioned one - was involved. a 2021 Emmy nomination for his performance in HBOs Lovecraft Country. If we’re really beating this analogy to death, then Tesla vs Lovecraft is the premium zebra-striped chocolate-drizzled popcorn of the genre, one of the purest, most rich offerings of shooting joy. In his study of the reflex regulation of the activity of the digestive glands. A showdown of epic proportions begins Chase the monsters, annihilate massive amounts of eldritch abominations, and overcome the madness of the old gods with science and hi-tech weaponry Features: - Use the. any manufactured solid fuel or peat briquettes will come into effect in 2022. megapixels mega-projects megara mega-regulator megas megastore megastores. So for gun builds the Mech does marginally more damage (at most 1.5x) and on utility or special ability builds it does roughly the same as you rely on other sources of damage anyways. On the eve of Nikola Tesla's greatest invention, his laboratory is burned down by the inhuman minions of the horror author H.P. m/0 m/s m/v m 0yr mmeal m0 m0/0 m0/m0 m0+cd m0+cds m00 m0a m0a0 m0b. It should also be able to use specials as others have said. The best uses for the Mech are to use its invincibility to do something you otherwise cannot imo. but dashing into enemies can also get you killed if you are not careful (dying middash). Parental Controls Learn how to manage your family’s video game and device use. Frequently Asked Questions Tools for Parents. Where to Find Ratings Whether online or in-store, here is where you can find our ratings. Ratings Process Find out how we assign age and content ratings. So on single target I believe several guns have better or similar dps to Mech miniguns. Ratings Guide In-depth information on the ESRB rating system. Its also pretty difficult to hit anything with the full Mech miniguns spread. Those who have doubts regarding Fantastical’s facelift needn’t worry: its revamped interface is a prime example of how focused apps should be designed. ![]() Overall, the app’s reimagined interface does an impressive job decluttering what’s always been a mess: dozens of reminders that need responding to, calendar events that need managing, alerts that need to be snoozed and what not. To go to a specific day, choose Go To Date in the View menu. On its sides are left and right arrow icons which can be clicked to advance or get back one day at a time. ![]() In the left corner is the Today button that takes you to the current day. Your search field always sits in the top right corner, right where it should be. The nice thing about Fantastical 2’s windowed appearance is how your main calendar view gets automatically resized as you drag window corners around. The remainder of the window’s real estate is dedicated to the Day, Week, Month and Year view of your calendar. This column is fixed width and cannot be resized. Here’s what Fantastical 2 looks like in full screen.Īs you can see for yourself, the two-pane window dedicates the left column to your event and reminder list which scrolls infinitely as you drag two fingers across your Mac’s trackpad. Not only does Fantastical have its own window, you can also enjoy it in OS X’s native full screen mode by hitting the green dot in the window’s upper left corner. I prefer the more subdued dark look so I’ll be using a dark-themed Fantastical for all my screenshots going forward. I can’t describe how user friendlier the app is now that it’s been windowed (previously, Fantastical was basically a menu bar app). Design: light and darkįantastical 2 has been designed exclusively for OS X Yosemite and it shows in every pixel and interaction. As for location access, Fantastical 2 uses your geographical coordinates to search for locations when creating events and reminders and to send you alerts on geofenced reminders.Īnd thanks to its entirely new sync engine with full native CalDAV support, you can now connect your Mac directly to calendar services like iCloud, Google and Yahoo. The app needs access to your contacts to manage event invitations and show your birthdays and anniversaries, should you choose so. Upon first launch, Fantastical will take you through a simple setup process during which you’ll add calendar services and authorize it to access calendars, reminders, contacts and locations on your Mac.ĭon’t worry, you can change this later in the Privacy section of System Preferences. The software is packed to the gills with a bevy of new features like iCloud Reminders and time zone support, light/dark theme, birthday reminders, a more powerful and friendlier natural language parser and more.Īs a whole, the app feels tighter and more streamlined. Developer Flexibits was kind enough to put me on its limited list of beta testers, this is what I was able to gather from my weeklong hands-on time with the software. In addition to the revamped appearance optimized for OS X Yosemite’s look and feel, Fantastical 2 is now a proper replacement for Apple’s stock Calendar and Reminders apps.įantastical 2 has its own full-blown window and gorgeous full-screen mode while its menu bar thing can now be detached and dragged anywhere on the screen. The sequel to the popular language-parsing calendar utility for the Mac has arrived and it’s everything you’ve been hoping for! Much more than a major new update, Fantastical 2 for Mac is a whole new app that feels instantly familiar while offering productivity-boosting improvements. ![]() ![]() We have added a installer so you can configure the install location, We now have Pterm included and working, We have fixed a large number of icon rendering bugs, cleaned up theme support, fixed a couple dynamic lib linking bugs, fixed a crash in Browse. 1 Download PuTTY (0.73) for Windows 1.1 Download PuTTY for Windows Operating System (Released 20 July 2019) 1.2 Using SSH in PuTTY (Windows) 2 Download PuTTY on Linux and Installation Guide 2.2 Install PuTTY on Linux 3 Download PuTTY for Mac and Installation Guide 3. We are now working on version 7.5 of Putty for Mac and have made some major progress the last month. (A) Putty for Mac cost only 19.95 and can be purchased here. Set up your Mac by opening the Sharing panel of System Preferences and then turning on the Remote Login checkbox. Posts about os x written by WinOnMacs.The mud client's main assets are an easy to learn scripting language, triggers, automapping, and a split screen interface to separate mud output from client input. A MUD client for Android, iOS, Linux, Mac OS X and Windows TinTin is a console mud client for any type of text mud or bbs.Then wait for the command to finish.MAC OS X Mavericks: Software Information. The Mac is still the best device for serious photo editing, so you need some serious photo editing apps to make an. It supports SSH, telnet, and raw socket connections with good terminal emulation. It is the world's most popular free SSH client. Adobe Lightroom Photo editing and organizing software 12-month Subscription with auto-renewal, PC/Mac Visit the Adobe Store Platform: Mac OS Sierra 10.12, Mac OS X El Capitan 10.11, Windows 10, Mac OS X. Download Putty Manager For Windows 7 Download Putty For Mac Os Free Download Putty For Mac Os Mojave Download Putty Macos PuTTY is a versatile terminal program for Windows. So just type your password and press ENTER/RETURN key. Free photo organizing and editing software for mac os sierra. When you type the password, it won't be displayed on screen, but the system would accept it. If the screen prompts you to enter a password, please enter your Mac's user password to continue. but may have different usage on other Mac OSX versions (Sierra, Mojave. Press Command+Space and type Terminal and press enter/return key. You can generate an SSH key pair in Mac OS following these steps: Open up the.SSH is available by default in Mac and Linux or Unix. It is used as SSH Client to connect to Your Linux server or for some other purpose. It Supports different types of Network Protocols such as SSH, FTP, SCP, Telnet. Putty is one of the Best Terminal Emulators available today. Although originally written for Microsoft Windows operating system, it is now officially available for multiple operating systems including macOS, Linux. For information on SSH (Secure Shell), see the here. For more information on PuTTY, see the PuTTY page. The answer is Yes With the help of some other Softwares we can Use putty on MacOS although Putty is used widely on Windows Platform. It is typically used for remote access to server computers over a network using the SSH protocol. PuTTY is a popular SSH, Telnet, and SFTP client for Windows. The easiest way to install MacPorts on a Mac is by downloading the pkg or dmg for Monterey, Big Sur, Catalina, Mojave. Here is a selection of the best SSH clients for Windows and Mac: Solar-PuTTY. ![]() Terminal can be used to get a local terminal window. Step 5 Once you have selected the Virtual SATA Hard Drive Media disk, click the Erase button. Step 4 To make the disk configuration, select Disk Utility and click the Continue button. To use it, goto Finder, and selext Go - Utilities from the top menu. Step 3 Select your macOS system language and click Continue. Mac OS X includes a command-line SSH client as part of the operating system. PuTTY Download - Free SSH & Telnet Client. Using the built-in SSH client in Mac OS X. ![]() The data on this page is also based on data sources collected from public and open data sources on the Internet and other locations, as well as proprietary data we licensed from other companies. The employee data is based on information from people who have self-reported their past or current employments at Idaho State Journal. We make it easy for you to search, discover, and share your family’s untold story.Zippia gives an in-depth look into the details of Idaho State Journal, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Idaho State Journal. The Idaho State Journal records are invaluable sources of historical information about local people. Connect other family members mentioned in the death notice to confirm whole sections of your family tree.Use multiple collections to fact-check any found records.Include Boolean operators and proximity search techniques.So, how do you look up local death notices and sift through hundreds of years’ worth of history? If you want to find death notices alongside Idaho State Journal obits, follow these tips: As family members typically wrote these, they tend to be relatively accurate.ĭeath notices can help extract more information about an ancestor and uncover where they happen to be buried. Death notices, on the other hand, are formalized reports of someone’s death.įamily members would have published death notices in the Idaho State Journal to detail the person’s name, age, residence, and any information about the funeral service. Obituaries describe the person, who they are, and what they did in their lives. But what’s the difference between a death notice and an obituary?Īlthough some people use the terms interchangeably, they’re actually two different things. How to Find Idaho Death Notices in the Idaho State Journalįinding death notices in the Idaho State Journal can be another vital source of genealogical research. It’s also ideal for fact-checking, as many obituaries weren’t necessarily created with 100% accuracy. TITLE editors often didn’t fact-check spellings in the past.īy implementing these strategies, you can go deeper with your research and uncover the ancestors you never knew you had. Perform searches by using common misspellings.Are you looking for a female relative? Try searching for their husband’s name.Many old Idaho State Journal obits used initials instead of full names. Use information from more recent ancestors to find older relatives.Obituaries can be used to uncover information about other relatives or to confirm that you have the right person in Pocatello, Idaho.įor a successful search of Idaho State Journal obituaries, follow these tips: Most older obituaries will include some pieces of family information. For a successful Idaho State Journal obituary search, it’s good to have multiple strategies at your disposal to ensure you get the correct relative. Genealogy research can be challenging as many records are incomplete or filled with mistakes. Tips for a Successful Idaho State Journal Obituary Search You can order your results by showing the best matches, newest entries, and oldest entries. Step Five - Get different results by changing the sorting options.With almost 150 years of history, the chances are your ancestors share the same name as someone else’s ancestor. Step Three – Exclude keywords to avoid uncovering obituaries unrelated to your family tree.Step Two – Add a keyword, such as a school or a town, to narrow your search results.Our search results will present you with close match obituaries. You’ll get more accurate results if you also have a middle name. Step One – Begin by entering the first and last names of your relative.If you’re trying to get more information on a specific relative, follow these steps to perform an advanced search of the Idaho State Journal obituary archives. You can also get some additional guidance by downloading the free “Tips for Searching Titles” guide. It’s an excellent launching point for further research into those elusive relatives. Whether you're trying to understand where you come from for the first time or you're looking to add some detail to a family tree, it couldn't be easier to perform a Idaho State Journal obituary search.Īll you have to do to get started is enter the last name of a chosen relative and press the “Search” button. Looking up Idaho State Journal obituaries in Idaho doesn't have to be difficult. How to Search Idaho State Journal Obituary Archives Mother hummingbirds will usually have two eggs laid on different days. When a mother hummingbird is laying an egg, she can be seen sitting on her nest with some shaking alternated by wiggling every few seconds. Knowing what to look for will help you understand what the hummingbirds are doing and why they are doing it.īaby hummingbirds are hatched out of hummingbird eggs. Watching a baby hummingbird grow up can be a very rewarding experience. I thought that it was informative and that maybe you guys would like to read it :) Good to know that they were fine and flew off to become grown up hummingbirds :) I almost went over yesterday to see them one last time… and didn’t. Then she saw them flying around the nest, practicing before they flew off. I stopped by to check on the twins today before work and they had flown the coop! I aked my friend about them today and she said that the mom kept feeding :))) them and that she saw them practicing flying yesterday (by holding on to the nest and flapping their wings like mad). I also read that most bird’s sense of smell is poor and that they couldn’t smell you on the fledglings. ![]() I did some research on the “if you touch a baby bird, the mom will abandon it” thing and from what I’ve read so far, it sounds like it may be an old wives tale. I couldn’t just leave them there to be cat food and lesson learned…DON’T GET TOO CLOSE! I told my friend to keep an eye out to see if mom is feeding them. I stopped by my friend’s place this morning before work to check on the twins and they looked good. I will check on them tomorrow, but not get close to them. I hope that the mom still looks after them… Here’s the 3rd and most likely the last set of photos of the twins :) After todays experience I don’t want to disturb them any further, but I’m also a little worried about them. I know that I said that I wanted to pet them so badly (on one of my photos), but not like that! It was incredible to hold them in my hands, but the experience was completey ruined by the guilt I had about possibly causing them any harm. They looked okay, like they didn’t get injured. They sat very still and didn’t flap around at all when I picked them up. They screeched at me a little and opened their beaks as I so very gingerly cupped them in my hands and returned them to their nest. Poor things! I couldn’t leave them there…I had to pick them up one by one and gently return them to their nest. I looked on the ground below and there they were a couple of inches apart, just sitting there. As I brought the camera down from my face to see what was going on I was horrified to see both of the baby hummingbirds were gone from the nest!!! OMG, I felt like such a jerk! I must have scared them and they jumped/ tried to fly…I’m not sure. I thought that it was mom, trying to scare me off, because I was too close or something. I repositioned myself for a better shot and as I was focusing the lens I heard tweeting and saw a blur come towards the lens. I climbed up on my ladder and started to take a couple of shots. Today I went back to my friend’s place to photograph the babies. On 4/27/09 I took a second series of photos. I rushed over after work and photographed them. Last week she told me that they had already hatched a few days prior. I kept forgetting to stop by and photograph the eggs/nest. She knows that I like to take photos and that I would love to photograph them. A few weeks ago a friend from work told me that she had a hummingbird nest in her tree and that there were two eggs in it. Chevrolet offering 0% APR On Pre-Owned Bolt & Volt.GM Extends Its Production Halt Across North America Due To Global Chip Shortage.The Subaru Forester comes in next, offering the most performance for money, as it is the only one to offer AWD as standard. And while it is the slowest in a 0-60 mph run at 9.3 seconds, it is the quickest to reach the quarter-mile in just 16.0 seconds. In comparison, the Honda CR-V offers the most powerful engine churning 190 horsepower and 170 lb-ft torque. So when set up with the base and only 1.5L four-cylinder engine, the Equinox is able to sprint from 0-60 mph in 8.7 seconds. The base engine that is on offer with Equinox is a turbocharged 1.5-liter four-cylinder engine that makes 170 horsepower, which sounds adequate but does not feel the same. The optional all-wheel-drive takes care of Equinox’s lazy, sluggish attitude, but the six-speed automatic is tuned for efficiency and does not downshift unless absolutely necessary.Ī better and more powerful alternative would be the 2.0-liter turbo four-cylinder engine which has a maximum output of 252 horsepower and 260 lb-ft of torque. Sadly, this motor will not be offered with the 2022 Equinox. "The turbocharged 1.5-liter four-cylinder makes 170 horsepower, and when paired with the optional (and heavier) all-wheel-drive system (front-wheel drive is standard), it takes a heavy foot to hustle the Equinox up to highway speeds." - Car And Driver Chevrolet To Expand The RS and Midnight Edition Trims In Its Cars Starting 2021.2022 Chevrolet Equinox to go on sale in Summer with 2022 Traverse following in Fall.2022 Chevrolet Corvette Z06 C8 Expected to Debut in July 2021.It will get unique features like gloss black grille, 19-inch Android wheels, black badges, black Bow-Tie logos, RS shift knob, and contrast red stitching on blacked-out upholstery. The 2022 Chevrolet Equinox RS will cost somewhere around $34,000. The 8-inch touchscreen infotainment systemĮven the interior of the 2022 Equinox Premier will get unique features like French stitching and a black gloss finish on the console. Chevrolet has also announced that the Equinox will be joined by an RS trim as well. ![]() Product sales and returns are subject to the Equinox+ Return Policy.The 7-inch touchscreen infotainment systemĮight-way power-adjustable passenger seats and Ventilated front seats Bread® pay-over-time plans are loans made by Comenity Capital Bank. APRs will vary depending on credit qualifications, loan amount, and term. Rates range from 0% to 29.99% APR, resulting in, for example, 39 monthly payments of $58.76 at 9.99% APR, per $1,950 borrowed. Subject to approval of credit application. ✞xample payments are based on the listed product price(s) assuming a 39-month loan term and a 0% APR. Offer and all products and services described hereunder are otherwise governed by the Equinox+ Terms and Conditions. Equinox Media LLC reserves the right to cancel, modify, withdraw, terminate, suspend, postpone, or extend redemption of the Offer in whole or in part, or substitute any portion of the Offer, in its sole discretion at any time and without notice, including as a result of any circumstance or factor beyond Equinox Media LLC’s reasonable control, including any governmental actions or orders, epidemics, pandemics (including any related delivery restrictions), acts of God, national emergencies, strikes or other like labor disputes, fires, floods, earthquakes, natural disasters or fraud. Offer is non-transferable, is not valid for prior purchases, has no cash value, and is not redeemable for cash or other property. Offer is not redeemable for cash or other property. Limit one (1) Offer redemption per person. Offer may not be combined with other promotions or offers. ![]() Offer is open only to legal residents of the United States who are at least eighteen (18) years of age at the time of redemption. 12-month Equinox+ membership ($40/month plus applicable tax) required with bike purchase. The six hundred dollars will be directly deducted from the total amount during checkout. To redeem the Offer, you must purchase the bike at between 12:01 a.m. † Offer entitles each individual to receive six hundred dollars ($600) off the purchase of the SoulCycle at-home bike ("Offer"). Products are available for sale and delivery only in the contiguous 48 United States. ![]() *Complimentary ground shipping is included on all orders of at least $75. ![]() In topology, braid theory is an abstract geometric theory studying the concept of braid. In the following figure, the two dashed paths shown above are homotopic relative to their endpoints and the animation represents one possible homotopy (from Wikipedia): Such a deformation is called a homotopy between the two functions. Two continuous functions from one topological space to another are called homotopic if one can be “continuously deformed” into the other. Important topological properties include connectedness and compactness.Ī traditional joke is that a topologist cannot distinguish a coffee mug from a donut (it is said that they are topologically equivalent), since a sufficiently pliable donut could be reshaped to a coffee cup by creating a dimple and progressively enlarging it, while shrinking the hole into a handle (from Wikipedia):Īs such, homeomorphism can be considered the most basic topological equivalence. Topology is formally defined as the study of qualitative properties of certain objects ( topological spaces) that are invariant under a certain kind of transformation ( continuous map), especially those properties that are invariant under a certain kind of invertible transformation ( homeomorphism). Intuitively, topology is concerned with the properties of space that are preserved under continuous deformations (such as stretching and bending, but not tearing or gluing). For example, the square and the circle have many properties in common: they are both one dimensional objects (from a topological point of view) and both separate the plane into two parts, the part inside and the part outside. The motivating insight behind topology is that some geometric problems depend not on the exact shape of the objects involved, but rather on the way they are put together. In his model, Kitaev thought that these braids could be used to form the logic gates that make up his topological quantum computer. Small, cumulative perturbations can cause quantum states based on spin or polarization to decohere and introduce errors in the computation, but such small perturbations do not change the braids’ topological properties. If their paths are thought of as shoelaces meandering through space and time, then when the particles rotate around each other, the shoelaces tie in knots (illustration from Wikipedia): In this approach, the state of a pair of non-abelian anyons is determined by its topology: how the paths of the two anyons have been braided around each other. He imagined a topological quantum computer built on anyons, whose world lines pass around one another to form braids in a three-dimensional spacetime (one temporal plus two spatial dimensions). In 1997, having this problem in mind, Russian physicist Alexei Kitaev imagined a different approach to quantum computing: stable qubits could theoretically be formed from pairs of hypothetical particles called “non-abelian anyons”. If you want a hundred logical qubits you’d need tens of thousands of physical qubits in the computer.” ![]() Enormous progress has been achieved in this direction, but, to quote John Preskill: “That gives you a big overhead cost. ![]() For this, a quantum computer requires each unit of information to be shared among an elaborate network of many qubits cleverly arranged to prevent an environmental disturbance of one from leading to the collapse of them all. We have already introduced these problems when speaking about quantum error correction: to fight decoherence, one has to completely isolate the computer from its environment, and careful eliminate of noise, and protocols for quantum correction of unavoidable errors. Decoherence arises when the quantum system that encodes the qubits becomes entangled with its environment, which is a bigger, uncontrolled system. ![]() This effect, called decoherence, abruptly ends quantum computations. The outstanding problem with entangled superpositions of spinning electrons, polarized photons or most other particles that might serve as qubits is that they are very unstable: even a slight interaction with the environment will collapse qubit’s superposition, forcing it into a definite state of or. Yet, we haven’t talk much about practicalities. We have talked about its theoretical principles ( quantum entanglement, no-cloning theorem, …) and its applications, especially in the contexts of cryptography and complexity. We have been talking about quantum computing for a few weeks now. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |