![]() It is weak because the receiver's payoff is 0 whether he accepts or rejects. The unique subgame perfect equilibrium is ( S=0, Accept). If the receiver rejects the offer, both players get zero. ![]() ![]() If the receiver accepts the offer, the proposer's payoff is (1-S) and the receiver's is S. Suppose the proposer chooses a share S of a pie to offer the receiver, where S can be any real number between 0 and 1, inclusive. The ultimatum game is also often modelled using a continuous strategy set. This would have two subgame perfect equilibria: (Proposer: S=0, Accepter: Accept), which is a weak equilibrium because the acceptor would be indifferent between his two possible strategies and the strong (Proposer: S=1, Accepter: Accept if S>=1 and Reject if S=0). For example, the item being shared might be a dollar bill, worth 100 cents, in which case the proposer's strategy set would be all integers between 0 and 100, inclusive for his choice of offer, S. A more realistic version would allow for many possible offers. The simplest version of the ultimatum game has two possible strategies for the proposer, Fair and Unfair. So, the first two Nash equilibria above are not subgame perfect: the responder can choose a better strategy for one of the subgames. In both subgames, it benefits the responder to accept the offer. The theory relies on the assumption that players are rational and utility maximising. A perfect-subgame equilibrium occurs when there are Nash Equilibria in every subgame, that players have no incentive to deviate from. The above game can be viewed as having two subgames: the subgame where the proposer makes a fair offer, and the subgame where the proposer makes an unfair offer. However, only the last Nash equilibrium satisfies a more restrictive equilibrium concept, subgame perfection. The proposer makes an unfair offer the responder would accept any offer.The proposer makes an unfair offer the responder would only accept an unfair offer.The proposer makes a fair offer the responder would only accept a fair offer.So, there are three Nash equilibria for this game: Meanwhile, it benefits the proposer to make an offer that the responder will accept furthermore, if the responder would accept any offer, then it benefits the proposer to switch from a fair to an unfair offer. It always benefits the responder to accept the offer, as receiving something is better than receiving nothing. For each of these two splits, the responder can choose to accept or reject, which means that there are four strategies available to the responder: always accept, always reject, accept only a fair split, or accept only an unfair split.Ī Nash equilibrium is a pair of strategies (one for the proposer and one for the responder), where neither party can improve their reward by changing strategy. There are two strategies available to the proposer: propose a fair split, or propose an unfair split. The argument given in this section can be extended to the more general case where the proposer can choose from many different splits. Both players know in advance the consequences of the responder accepting or rejecting the offer.įor ease of exposition, the simple example illustrated above can be considered, where the proposer has two options: a fair split, or an unfair split. If the responder accepts, the money is split per the proposal if the responder rejects, both players receive nothing. Once the proposer communicates his decision, the responder may accept it or reject it. The proposer is tasked with splitting it with another player, the responder (who knows what the total sum is). One player, the proposer, is endowed with a sum of money. An early description is by Nobel laureate John Harsanyi in 1961. The ultimatum game is a game that has become a popular instrument of economic experiments. Player 1 can offer a fair (F) or unfair (U) proposal player 2 can accept (A) or reject (R). Extensive form representation of a two proposal ultimatum game.
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![]() XMC-77 was later exhibited to the public at various locations in the East Bay and the Transbay Terminal. The XMC-77, which AC Transit dubbed the "Freeway Train", was originally built in 1958, purchased by the District in October 1965, and made its debut run for Line N on 14 March 1966 passengers on the inaugural run were presented with special souvenir tickets. Super Golden Eagle model) on some of its transbay lines. In the mid-1960s, AC Transit in California pioneered the American use of a modern articulated bus, operating the experimental commuter coach "XMC 77" (based on Continental Trailways' Bus & Car Co. There is an ongoing exhibition in Budapest at the Hungarian Technical and Transportation Museum in 2010 with the title "The articulated bus is 50 years old." The Ikarus 180 went into limited production in 1963, and entered serial production in 1966 the Ikarus 180 was discontinued in 1973 when its successor, the Ikarus 280 was released. In Budapest, the first prototypes of the Ikarus 180 (named for its 180-passenger capacity) were shown in 1961. According to contemporary coverage, the Super Twin had a capacity of 58 seated and 120 total, with a weight of 27,500 lb (12,500 kg). 15 examples of the "Super Twin" were built in 1948, but it was not developed further. In 1938, Twin Coach built an articulated bus for the city of Baltimore this bus, which had four axles on a 47 ft (14.33 m) long body, was only articulated in the vertical direction to accommodate steep grades. Solaris Urbino 18 in Warsaw, Poland (2018)įirst example of the articulated bus appeared in Milan ( Italy) in the 1937. Such vehicles have a capacity of around 200 people, and a length of about 25 m (82 ft) as such, they are used almost exclusively on high-capacity, high-frequency arterial routes and on bus rapid transit services. A less common variant of the articulated bus is the bi-articulated bus, where the vehicle has two trailer sections rather than one. Some articulated buses have a steering arrangement on the rearmost axle which turns slightly in opposition to the front steering axle, allowing the vehicle to negotiate tighter turns, similar to hook-and-ladder fire trucks operating in city environments. The common arrangement of an articulated bus is to have a forward section with two axles leading a rear section with a single axle, with the driving axle mounted on either the front or the rear section. ![]() Articulated buses are typically 18 m (59 ft) long, in contrast to standard rigid buses at 11 to 14 m (36 to 46 ft) long. This allows a longer legal length than rigid-bodied buses, and hence a higher passenger capacity (94–120), while still allowing the bus to maneuver adequately.ĭue to their high passenger capacity, articulated buses are often used as part of bus rapid transit schemes, and can include mechanical guidance. It is usually a single-decker, and comprises two or more rigid sections linked by a pivoting joint (articulation) enclosed by protective bellows inside and outside and a cover plate on the floor. DAC 117UD articulated bus in Uzinelor, RomaniaĪn articulated bus, also referred to as a banana bus, bendy bus, tandem bus, vestibule bus, wiggle wagon, stretch bus, sausage bus or an accordion bus, (either a motor bus or trolleybus) is an articulated vehicle used in public transportation. As a comprehensive further development with additional functions, the model PSD-4 electronic pressure switch is also notable. The successful design as well as the excellent functionality of the WIKA pressure switches were already confirmed by winning the “iF product design award 2009” for the model PSD-30. Learn even more about electronic pressure switches in the WIKA blog post " What is an electronic pressure switch?". Switch points, output signal, delay time, hysteresis and many other parameters can be individually adjusted to suit the application. ![]() Electronic pressure switches often feature a display from which the measured value of the pressure can be read, while flexible settings and programming are also possible. Thus, not only is it identified whether the defined switch point has been reached, but the actual measured pressure is transmitted. Along with the electrical switching signal, many electronic pressure switches offer an additional analogue signal proportional to the pressure. What is an electronic pressure switch?Īn electronic pressure switch is based on an electronic pressure sensor. The Ex d-approved switches are available in epoxy-resin-coated cases made from copper-free aluminium. When does one use a WIKA explosion-protected mechanical pressure switch?įor operation in hazardous areas of process engineering, WIKA mechanical pressure switches are available in Ex ia or Ex d versions. Electronic pressure switches are also very well suited for low-power switching. Even the switching of electrical loads up to 15 A/220 V is possible without problems with a mechanical pressure switch from WIKA.įor the switching of very low voltages, such as those used in PLCs, WIKA offers argon-gas-filled microswitches with gold-plated contacts. Adjustable limit switch is accessible from the front of the gage and the contacts have a self-cleaning motion to enhance electrical continuity. They feature high long-term stability and precision. WIKA pressure switches are fitted with high-quality microswitches. The resulting reliability is one of the advantages of mechanical pressure switches. MURPHY PRESSURE SWITCH GAUGE OPLC-A-30V30 Condition: New Open box Price: US 200.00 No Interest if paid in full in 6 mo on 99+ Buy It Now Add to cart Add to Watchlist Returns accepted Ships from United States Pickup: Free local pickup from Mulvane, Kansas, United States. If, with a mechanical pressure switch, the defined pressure is reached and the switch is actuated, the switch will send an electrical signal. Laboratory analysis of SF 6 & alternative gases.Basic materials (minerals, metals, paper).Valves with integrated pressure regulators.Heat transfer and distribution stations.Laboratory analysis of SF6 and alternative gases.International service network with system calibration.Power transmission and distribution (SF 6).Precision pressure measuring instruments.Pointer: High visibility with a pointer calibration hub. Geared Movement: 302 and 304 stainless steel. Gage Accuracy: 2-1-2 ☒% for the first and last quarters of the scale, the middle half is ☑%. (114 mm) white on black, dual scaled psi /kPa OPLBP – SPDT dry relay contacts 10A, 125 VACĭial: 4-1/2 in. OPLC and OPLFC – 1 SPDT Center off 2A, 30 VDC / 1A, 125 VAC pilot duty More information is available on the manufacturer website. OPLC-S-2000: 4. ![]() ![]() Murphy OPL pressure gauges are part of the Murphy engine protection and monitoring range. ![]() Contact lead termination is by pigtail wires. This version can be environmentally sealed with either the ES or OS options. The OPLFC is typically used in control panels for compressors, pumps, etc. The lockout must be done externally through the control circuit. It has all of the features of the OPLC except the low limit contact lockout. The OPLFC is a panel mounting version of the OPLC. Used in conjunction with AT03069 Throttle Controller Suitable for engines or electric motors with appropriate Murphy magnetic switch or transformer relay assembly. An SPST toggle switch is provided to override the low limit contact for equipment start-up. Pointer closure against either of the adjustable contacts completes the pilot-duty circuit. Adjustable high and low limit, ungrounded contacts are used to operate alarm, shutdown or start-stop circuits. The OPLC is a surface mount, indicating pressure gauge and switch. Murphy OPL pressure gauges for engine protection in the event of out of tolerance pressure. There was only so much the helo could handle. ![]() But halfway between continental Norway and the North Pole, it felt as if the air were winning.Īs sleet slammed against the exterior, another sixty-plus-mile-per-hour gust rocked the airframe. Helicopters, it was said, didn’t fly – they merely beat the air into submission. If he fails, the United States and its allies will be at the mercy of one of the world’s most dangerous actors. If he succeeds, he’ll walk away with everything. In a race against time that will take him high above the Arctic Circle, Harvath will be tested in ways he has never imagined and pushed to a limit few human beings could ever endure. How is he still alive? And what is he doing in Norway? Leaving his favorite café, Harvath watches as a ghost climbs out of a taxi – a man he killed years ago, halfway around the world. When his deadly past comes calling, though, he’ll be left with no choice at all. But out of vacation days and long overdue back home, America’s top spy has a decision to make – return, or submit his resignation. With a cottage on the Oslo fjord, a boat, and his beautiful girlfriend Sølvi, he’s got everything he could possibly want. Scot Harvath is having his best summer ever. Continued abuse of our services will cause your IP address to be blocked indefinitely.#1 New York Times, #1 Wall Street Journal, and #1 Publishers Weekly bestselling author Brad Thor is back with his most intense thriller yet. Please fill out the CAPTCHA below and then click the button to indicate that you agree to these terms. If you wish to be unblocked, you must agree that you will take immediate steps to rectify this issue. ![]() If you do not understand what is causing this behavior, please contact us here. If you promise to stop (by clicking the Agree button below), we'll unblock your connection for now, but we will immediately re-block it if we detect additional bad behavior. ![]() Overusing our search engine with a very large number of searches in a very short amount of time.Using a badly configured (or badly written) browser add-on for blocking content.Running a "scraper" or "downloader" program that either does not identify itself or uses fake headers to elude detection. ![]()
![]() I think is the client with less issues, it is just slow to download thumbs for pCloud Drive, but works (Remember that proud Drive is not the same as Sync folders). What you need to know is that it works with “Files” app, so that is good. I rarely used now, so I just don’t care about the issues on iOS. So if you just want to take photos have them in your cloud without having to remember to open the app before the time expires, don’t use 2FA. (I don’t remember the number of days because I stopped using it). If you enable 2 factor auth., keep in mind that the app will stop uploading data after 15 or 30 days if you don’t open the app and enter the password again. ![]() If you are browsing your photos and need to know where is located, you can't. Automatic upload is not reliable, could take days until pCloud realizes it needs to upload something, the workaround is to disable and enable automatic upload if you need to send your photos ASAP. For new users, these are the some aspects you will definitely find: On Android: 1. Probably is because the company is not well know or they don't look very friendly with their responses, basically nothing is ever wrong on their side and is the user's fault. I haven't had issues with deleted files or pCloud deleting my account so far, but honestly is a concern, so I download all my data every month to have a backup of the backup, is stupid, but is difficult to feel your data is safe. ![]() The NOT SO GOOD: Reading many reviews about deleted files, deleted accounts corrupted files affects the image of the product. Lan Sync: If you have multiple devices at home, the sync is faster because it uses your LAN network. Sync folders!!, I can just set up a new PC or Mac, connect pCloud to “My Documents”, “Desktop”, “Videos” or “Pictures” and magic, your new computer is ready. My account is connected to: 1 Windows 10 1 macOS Mojave 1 Samsung S8 1 iPad Pro 1 iPad Air The GOOD: No subscription!!. If you trust your files or account won’t be deleted, this is a great service despite of any technical issue. The price is also very competitive on the market, this is another great thing. I found that pCloud is the best combination of high-level security & privacy architecture with well-designed features. My files get sync and then played on the players of pCloud. I used to use VLC on my iPhone, but with pCloud I don't need it anymore. The iOS app comes with a built-in music player and video player. The pCloud team must have put a lot of thought to make such great features. The design of the software (web-based, desktop, and iOS) is great. You can also see that the SSL certificates use a Swiss based company to make sure that privacy is certainly respected. The company is also protected by Swiss privacy laws, and this is an added value. You can see that every piece of pCloud architecture makes security and privacy a priority. The pCloud team takes privacy and security very seriously. But here is a review of why I like pCloud: 1. I have been testing pCloud on the free version, and I am determined I will buy the 2TB lifetime plan. High-level security & privacy architecture. A signed copy of the order of forfeiture shall be forwarded with the notice.Meeker County Jail & Detention Meeker County Jail & Detention ![]() Whenever a bail bond is forfeited by a judge, the surety and bondsman shall be informed by the court overseer in writing, and be directed to make payment in accordance with the terms of the bond within ninety (90) days from the date of the order of forfeiture. In cases where bail has been set by the court and the defendant has provided a bail bond with corporate surety, approval by a judge is unnecessary if the bond conforms to Form 702 as published by the state court overseer. It may be filed with the court administrator during regular business hours and also with the custodian of the jail. You are also required to accept a disclosure to use the database.īefore any subject is released on bond, the bond must be approved by a judge after submission to the prosecuting lawyer for approval and execution. You can access this information online for Meeker County by going to this link, but bear in mind that searches sometimes reveal primary last known addresses or, rather the block that they live on. The definition of a sex offender is a person convicted of a crime involving sex, including rape, molestation, and production or distribution of child pornography. The people on these databases have been convicted of a sex or kidnapping crime. The following administration lockdown periods are in place where no visits are allowed, unless exigent circumstances apply, so that staff can complete the serving of meals and deliver prescribed medication to the inmates in a safe and secure fashion.Īll registered sex offenders are registered on either a national or state sex offender database. Professional visitors will be allowed to visit 7 days a week during the following time periods unless exigent circumstances exist: Inmates will be allowed visits with family and friends on Thursdays and Sundays. Rules governing visitation are subject change by the Sheriff and Jail Administration. When conduct is deemed by correctional staff as disruptive to the order and operations of the facility or the safety and security of the facility.įailing to follow facility rules or staff directives. Inmates that have not made their first court appearance are not allowed visitors. Inmates serving weekend sentences are not allowed visitors. Visitors may leave cash or money orders for the inmate, all other items must be sent through the mail. Visitors must not have been incarcerated within the past 60 days. A full name and date of birth must be provided for each child. Visitors must present a picture ID prior to visiting.Ĭhildren are allowed to visit as long as accompanied at all times by an adult. Inmates are allowed 1 visit per day, the visit will be a minimum of 20 minutes in length. They have volunteers who provide GED, AA/NA, and religious services from a number of churches, as well as visits to inmates from local clergy for consoling. They have a Public Health Nurse that visits the center three times a week. The Detention Center employs 9 full-time and 6 part-time Correctional Officers, as well as a Jail Programmer and Jail Administrator. They house work release inmates as well as minimum, medium, and maximum inmates. The Detention Center construction was completed in 1999. Each inmate’s file contains the following information: Prisoner, CID#, Bunk, Agency, Charge, Booking Date, Held For, Release Date. Of incarcerated inmates maintained at their site in PDF form. His contact information includes his email address ( ). Sheriff Brian Cruze is the current head of the Meeker County Sheriff’s Office. Meeker, an associate justice of Minnesota Territorial Court. Meeker County is a county found in the central south part of Minnesota with its county seat in Litchfield. Meeker County, Minnesota Sheriff Overview ![]() ![]() Results May Include: Arrests, Bookings, Arrest Date, Mugshot, Booking Number, Date of Birth, Sheriff’s Custody, Housing Location, Received Date, Arrested by, Case/Count, Description of Charges, Charged by, Reason for Arrest, Severify of Charge, State of Charge, Bail Information, Court Appearance Date, Court Location. ![]() Search Inmates in Meeker County, Minnesota. Although math-oriented programs, such as Universal Math Solver, deal with more complex problems, this app remains a great choice for anyone. You can use this program on Windows Vista and later. Desmos Graphing Calculator is a well-developed software, albeit its advantage is convenience rather than sophisticated math problem-solving. 2464b4) -b Reduce number of lines with bilateral filter. Although those who use math daily can download a more complex calculating software, having a rather decent one is enough to save time in urgent situations.ĭespite the fact that this extension can handle more demanding math tasks, real-life problems cannot be solved with a simple extension. A simple image/video to Desmos graph converter run locally - GitHub. Math and science students will reap the most benefits from this virtual calculator. I was looking for this to copy from Desmos to Matlab and saved so much time :D. Paste the code, hit enter, data prints out. This extension displays the results in real-time, meaning that all mistakes can be corrected mid-calculation if needed. Press Ctrl + Shift + I to access the console in Chrome (Ctrl + Shift + J, and need to enable pasting, in Firefox). You can also alter the task you’re working on at any time if you stumble upon new information along the way. These include graphs, tables, charts, and more. There are a couple of methods for demonstrating the results of your equations. It strayed far from the original concept now, it is a virtual online calculator capable of handling challenging math problems. As time went on, the scope of equations this software could perform expanded. It is your go-to tool for solving some of those difficult math problems.ĭesmos Graphing Calculator started as a Chrome extension used to visualize graphs and charts. ![]() Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. ![]() A complex calculator inside your web browser Explore math with our beautiful, free online graphing calculator. ![]() ![]() This isn't always guaranteed as the races are pretty fast and you can go from 1st to last right at the end. ![]() Each course is roughly 3,500-4,000 metres in length and for normal races you can easily get 500-600 coins, as long as you race on 1000hp and win. At the “end” of the game I had raced just over 500 races and so a rough estimate would mean you would look at needing to race 2,500-3,000 races to grind out the below two trophies. In my case I had finished all of the game modes with both of the below trophies at around 20%, meaning that after the game was basically complete I still had 80% of these trophies to grind. Each day the prize money rises up to a maximum of 3,000 coins for day 7:īy now you will have nearly all the other trophies but even if you haven't, then don't worry as the next two will require a lot of grinding. Once you know how the game works, then none of these are particularly taxing and are easily achievable after a few attempts. You can take part in the daily challenge as many times as you need to get but once you get the requirements for it and the daily challenge coin bonus, it then becomes locked out until the next day's challenge. On the main screen there is a Daily challenge, this is a random event and each day this changes. Play through Career mode, levelling up your car and unlocking characters and when you get 3 stars for every level in Career mode you should end up with all of the following trophies:-ĭepending on how good you are at racing games and with a bit of luck you might have unlocked the following trophies as well during your Career playthrough:-ĭuring all of these races try and keep an eye out on the criteria for the following trophies and try to get them when you can to avoid having to grind for them later on:-īy now you should have a good handle on the game so you can look at the Championships game mode, basically this is 4 championships with each car and you need to win 5 of them at 1000hp level to unlock the relevant trophies:-Īfter you have completed Career and Championship mode you may have some of the following trophies but you will likely need to keep replaying levels to get some or all of these:. Your main batch of trophies comes from getting 3 stars on every level of career mode (apart from the second to last level because that doesn't have a trophy for getting all the stars for some reason) and the rest of the trophies come from doing various things that are either level, driver or situation dependent.īefore you start racing go to the upgrade screen and choose paint car for a quick and easy trophy:. There are also various special levels which are marked on a different score, these are Shooting Gallery (Hitting targets with missiles), Stampede (Ramming into things for points), Boost Blitz (1 lap using boosts as quickly as possible), Follow the Leader (collecting bubbles dropped by a kart in front) and Elimination (last place person drops out).Īt the top of the screen in the right hand corner there is a handy counter of the trophies and the game even gives you either a running total of your progress for each trophy or it breaks it down into percentages for you so you can see how near or far you are away from getting your next ping. Like a lot of kart racing games, you are awarded stars for each race with 1 star for third, 2 for second and 3 for first. Start with Career as it will give you the basics of the game and whilst you can start with the Championships you really want to upgrade your Kart first as whilst not impossible Championships can be harder with a basic Kart. The controls are your standard racing controls of for accelerate, for brake, for weapon fire/menu selection and for your special weapon. Upon loading the game you will be presented with a fairly standard options screen for a racing game, with Career and Championships being the main two that you will be interested in. ![]() Site #3 Instant Online Crossword Puzzle Maker While the generator is fairly simple to use, you will need to spend a little time figuring out all the options the first time you use it. (With the paid version, you can add additional images and even upload your own.) Options are provided for changing the size of your puzzle, coloring in the puzzle boxes and font, and saving the puzzle as a pdf or image.Ĭons You must pay to have all the options available. You can add an image to the page from their bank of stock images. The puzzle has many options for customizing your puzzles such as name line, title, and instructions. You can highlight the puzzle under the “Advanced Tab” and copy and paste it into Word. You can customize your puzzle by selecting one of seven font options (free version) and over 90 from the paid version. This makes creating the puzzle super quick. Pros One of the best features of this site is you can click on an icon beside the field where you type in your clues and can select a preset definition from The American Heritage® Dictionary of the English Language, 4th Edition. Site #2 ~ The Teacher’s Corner Crossword Puzzle Generator You can also copy and paste the image and clues into another document such as Word or PowerPoint.Ĭons This generator does not give you the option of printing an answer key. This is a great feature because you can easily correct any mistakes you made while typing the clues. Your finished puzzle is an image with text below for the clues. You won’t need to spend time trying to figure out how to work this generator. Pros This generator is super easy to use with just four fields to fill in: puzzle title, number of squares, size of squares, and clues with definitions. Site #1 ~ Discovery Education’s Puzzle Maker I have linked each title to the generator website. ![]() You can find billions of crossword puzzles online or in teacher resource books, but they often do not fit the words you are studying. In my free time, I enjoy training for my next half marathon, singing on my piano, propagating my Monsteras, or simply doing coffee walks in San Francisco, a place I’ve called home since 2018.In this post, I reviewed four free crossword puzzle generators to help you find the site that best fits your needs. I am a (soon-to-be) published poet, a podcaster, and a self-proclaimed home cook. Growing up in Indonesia and being a first-generation gay Asian immigrant in America have taught me the crucial value of high-quality education, social impact, and what it means to pursue the American Dream. This passion ultimately led me down the path of earning my Bachelor of Architecture degree, producing theme park lands & attractions at Disney, creating immersive physical spaces at Google, launching augmented reality filters at Instagram, and join the brand design team at a real estate startup called Qualia, before ultimately joining Khan Academy. Hi, I’m Joshua (he/him)! For the longest time in my life, I’ve always been fascinated with anything design & storytelling. Joshua Kurnia Senior Design Program Manager ![]() When not working with computers he pursues his passion of Squash, Windsurfing, 3D printing and flying Paramotors! He is thrilled and honored to have this opportunity to work more closely with the product teams and to get back to building inspiring, efficacious and engaging product. Over the past two years he has additionally been leading our Goliath services transformation work. Paul joined Khan Academy in 2017 as Director of Engineering to lead Infrastructure to ensure that the site runs really well and learners can count on it being available. ![]() At Intuit he was Chief Architect of Hosting and led the transition to private and public clouds. He has founded several companies building consumer facing web applications, serving them in technical executive roles culminating in IPO preparation and acquisition as well as serving as a strategist and change agent in established enterprise companies. He is responsible for overseeing the technical direction and implementation and data insights team.ĭuring the past 30 plus years, Paul has proven himself as an innovations catalyst in roles of CTO, Chief Architect and engineering leader. Paul Morgan serves Khan Academy as CTO and VP Engineering. |