It is also used in designing of ships and submarines as well as in controlling the flight of a hot-air balloon. This principle has several applications such as the hydrometer that determines the specific gravity of liquids. It was formulated by Archimedes, the law states that a body totally or partly immersed in a water is subject to an upward force, also known as buoyancy, that is the same as the weight of the fluid it displaces. The Archimedes’ principle is a law of physics in hydrostatics. His most famous accomplishment is the Archimedes principle His now famous word Eureka is used to express great joy for new discoveries. Tests were done on the crown and indeed, the King was right, silver had been mixed in the crown. It was at this moment that the light bulb went on!Īrchimedes discovered that there was a direct correlation between the water overflowing from the tub in relation to his immersed body.Įxcited with the discovery, Archimedes jumped out of the tub and ran through the streets shouting Eureka, meaning I have found it. He had to ponder over it while taking a bath. As you can tell, this was no simple task. Here is what, King Hiero II challenged Archimedes to find out if a gold crown made for a temple was made of pure gold or mixed with silver.Īrchimedes was to find out the purity of this crown without damaging it. So, what led him to do that? you may ask. Well, chances are that the caricature is that of Archimedes. You might have seen cartoon figures of an old man running naked through a town. Conon of Samos was his friend.Īrchimedes addressed two of his works to his classmate Eratosthenes. His classmates were Conon of Samos and Eratosthenes of Cyrene. No one knows if he was married or had children. There is therefore very little-known detail on the life of Archimedes. Heracleides, a friend to Archimedes, wrote his biography but the work was lost. He wrote that Archimedes lived for 75 years. Since Archimedes’ exact birth date was not known, this date of birth was based on a statement by the Byzantine Greek historian John Tzetzes. ![]() ![]() At that time Sicily was a self-governing colony in Magna Graecia. Archimedes birth date is not knownĪrchimedes was born circa 287 BC in the seaport city of Syracuse, Sicily. I have put together some of the top 10 facts about Archimedes. Part of his contribution was building war machines that protected Syracuse, his home, from the Romans.Īrchimedes was also regarded a philosopher who is credited with the application of pi and discovering hydrostatics. This Greek mathematician had a good understanding of mathematics and physics. Archimedes proved several mathematical theories like the area of a circle, area of an ellipse, the area under a parabola among many other formulas. He is credited for coming up with modern calculus and analysis. There is little about his life that is known, one thing that is certain though is that he one of the greatest mathematicians to have ever lived. Archimedes is regarded as one of the leading scientists of the olden days.
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Non-additive aggregates from the secondary data source WorkaroundĪgain, try creating an extract of your data source. In order to use non-additive aggregates in the primary data source, the data source must originate from a relational database that allows temporary tables to be used. Non-additive aggregates from the primary data source Try using an extract of your multi-connection data source and this could solve the problem. WorkaroundĮxtracts-or saved subsets of data-support temporary tables. Temporary tables aren’t supported by multi-connection data sources that utilize live connections. There are non-additive aggregates from a multi-connection data source with a live connection As such, you cannot use blending with non-additive aggregates when using a published data source as your primary data source. If you are using Tableau 8.3 or earlier, Tableau Server won’t support temporary tables. If you are using Tableau 9.0 and later, you can try using MEDIAN and COUNTD with blending in a published primary data source. ![]() This can restrict what you do with non-additive aggregates. However, not all versions of Tableau Server support them. A published data source is the primary data sourceĬertain tables in SQL Server are temporary. ![]() Then, try using the LOD expression from the secondary data source. Remove all dimensions from the secondary data source and confirm that the linking field in the primary data source is in the view. According to Tableau, this error can also appear when using a LOD expression in a view with data blending. LOD expressions are used when running complex queries with multiple dimensions at the data source level. A Level of Detail (LOD) expression is being taken from the secondary data source “Cannot blend the secondary data source because one or more fields use an unsupported aggregation.” Causes and Workarounds for a Blending Limitation Errors 1. When this happens, you will see the following error message appear over the invalid fields: Under certain circumstances, these limitations can cause certain fields in the view to become invalid, according to Tableau. All Number functions, except for MAX and MIN, are non-additive aggregates.” “Instead, the values have to be calculated individually. “Non-additive aggregates are aggregate functions that produce results that cannot be aggregated along a dimension,” says Tableau. Tableau Data Blending Limitations: A Closer Lookĭata blending limitations often occur when working with “non-additive aggregates” like MEDIAN, RAWSQLAGG, and COUNTD. Use data blending when you have duplicate rows after combining data.Data blending is typically used when your data needs to be cleansed and your tables do not match up correctly after merging.For example, in a table with cities, you might have State, City, and ID, and in a table with sales, you might have many more fields. Data blending is granular independent: Since you get data from different sources, this data can have different levels of detail.See this article to familiarize yourself further with the joins in Tableau. Data blending works only as a left join operation and does not work with any other join types.Investigate your data sources for common data types: both data sources must have a field for linking tables (city or state ID in our example).Data blending is best used when you need to analyze data from different data sources: For example, you need to view sales by location – it can be the name of a state or city, and sales data stored in different tables, and to visualize data by city, then you need data blending.Each data source is queried independently and the results are aggregated to the appropriate level then visualized together.” Instead, data blending is a better method. If we were to join this data, some quota information would be duplicated for each transaction because joins are row-level. ![]() For example, you have transactional data in one source and quota data in another. “This is ideal when the data is at different levels of granularity. ![]() “Unlike joins, data blending keeps the data sources separate and simply displays their information together,” Tableau explains. This is a bit different from data joining, which involves combining related data from common fields. When blending data, you merge data from a secondary data source and display it alongside data from a primary data source in a view (i.e., a visualization). Occasionally when working in Tableau, you will have to perform a function called data blending, which involves combining data from different sources. ![]() ![]() There’s Monkey Race, Monkey Fight, Monkey Target, Monkey Billiards, Monkey Bowling, Monkey Golf, Monkey Boat, Monkey Shot, Monkey Dogfight, Monkey Soccer, Monkey Baseball, and (monkey) finally Monkey Tennis. When you need to cool off from the main game, Banana Mania has a ton of minigames to play. However, this costs an unknown amount of coins, so if you run out you’re screwed. If that’s not enough, you can outright skip levels by marking them as cleared and not recording your score. At any time, or if you die too many times, you can activate Helper Mode which will show you an optimal path as well as allow you to slow down time with the L button. Thankfully, Banana Mania has a few tools to help you through some of the more difficult stages (sometimes). There’s a reason Super Monkey Ball is known for helping even Doctors with hand-eye coordination. This game gets insanely difficult near the end, so much so that I couldn’t finish the second to last world. As levels slowly ramp up in difficulty, you’ll encounter hazards that make your life hell like moving goalposts, pistons that will instantly send you out of bounds, and perilous jumps. Per the title, your character is in a ball and you move them around by tilting the stage with the left analogue stick. The goal of each course is to cross the ticker tape, which can be much, much harder than it sounds. In the Main Game, you’ll find every course from both games in one long campaign spread across ten worlds containing ten courses each. From the catchy theme song to the various shades of yellow in the menus, this really feels like a celebration of the series’ roots. The first thing you’ll notice about Banana Mania is the presentation – this game has style. But the monkeys have been making a comeback recently, with the latest game Super Monkey Ball Banana Mania being a remake of those first two Gamecube titles I rented so long ago. Aside from its sequel and the DS and Wii games, I actually haven’t played that much of the series since then. That game was, of course, the original Super Monkey Ball. While the main campaign is way too hard for me, I adore the minigames and rent it a few more times to play with friends. I see this weird Gamecube game about monkeys in balls, so of course I have to pick it. The year is 2002, I am seven years old and looking for a game to rent at our local Blockbuster. ![]() Trust me, I’ve saved a lot of money and now I’m able to play this game as long as I want without having to complete some stupid game tasks to get free gems. You won’t have any charges and you can relax because I guarantee you this really works. Using the Lords Mobile cheat engine is completely free and safe. 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Dupeguru is an open source tool for comparing Duplicate files. so be careful what you allow it to delete.ĭupeGuru Music Edition is a super quick way to weed out those files which you don't need any more or which are taking up valuable space on your hard drive.Īdded German localization by Gregor Tätzner.Made the file collection phase cancellable.Fixed glitch in folder window upon selecting a folder state.Fixed a text coloring glitch in the results.Fixed glitch in the sorting feature of the Folder column. Mac/Windows/Linux: dupeGuru is a free, open source and cross-platform utility that will scan and help you remove duplicate audio files from your music library. Sometimes dupeGuru Music Edition selects files which it thinks are duplicates but in reality are not. Im talking about to compare the lenght and the internal values to get if there are duplicated files even if their names arent the same (example: the same video with different names in different folders). However, it can still be confusing which files are duplicates and which are not. I want to know if there is some Linux native app (with GUI) to eliminate duplicate files, not only related with the names of the files, but its content. dupeGuru Music Edition saves you time and does its job extremely quickly. ![]() You can choose the one that is suitable for you by considering. However, if some duplicates are not as clear as others, dupeGuru Music Edition uses a special algorithm which can mark out which files genuinely are separate and which ones are just similar thanks to the Power Marker. Also, there are other useful duplicate file removers, such as MacClean, dupeGuru, Tidy Up, etc. Choose Search Criteria and switch to Audio Mode via the Search Criteria menu. ![]() dupeGuru Music Edition not only allows you to delete duplicate files but also move or copy them elsewhere. Install the free version of Duplicate Cleaner. 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So I log into WB21 and attempt to fund the account so I can send that money to TradeZero. ![]() Still kind of aggravating that I want to trade stocks and here I am doing technical analysis on Bitcoin wondering if I could have timed it better. Damn an unexpected $95 gone but slightly understandable. Ok I forgot but understandable.Ĥ days later, the bitcoin is deposited into my account but the price of Bitcoin dropped ~$10. Then I get a message that they will be deposited in 3–5 days after the ACH is confirmed. Go over to Coinbase and buy 9.5 bitcoins. I already have a verified Coinbase account so what can go wrong? This is the future! Since international wires sometimes can be confusing with intermediary banks and occasionally require me getting on the phone to confirm wire details (and read out loud routing numbers, account numbers, bank names, addresses), I thought I would bypass all of that and simply buy, transfer and fund my account with Bitcoin. 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What the British Transport police wanted to do was stop me from publishing photos and stop me from writing about this thing, because what we did undermined their narrative of security.” Garrett had demonstrated that the secret, impenetrable world was not so secret or impenetrable after all.īradley Garrett at the top of Battersea Power Station in London. “When I reflect on the whole process,” he says now, “I realise that the trauma we were subjected to was actually the point. The case dragged on for two years, and he was eventually given a conditional discharge and ordered to pay costs of £2,000. “They didn’t have any evidence that we had committed any criminal damage, so they charged us with a thought crime,” he says. In 2012, Garrett and several fellow explorers were arrested and charged with conspiracy to commit criminal damage. It’s also fraught with difficulty and danger. This breaking into closed-off spaces isn’t an explicitly political act – there is usually no attempt to change anything specific – but in an over-regulated, over-securitised world, it feels like a way of kicking against the system. “There’s a very particular kind of agency that comes from using the body to get into spaces that you’re not supposed to access,” he says, “and that translates very easily into a kind of politics.” ![]() Garrett talks about the “personal sense of empowerment” urban exploration provides. There’s an addictive quality to it, because once you start going into these spaces and understanding the city in a different way, it’s very hard to fall back into normal rhythms.” “You are able to see the abandoned buildings, the infrastructural systems, the construction sites, all the things that comprise the city. “Exploring the city gives you a chance to understand it in a different way,” Garrett tells me. ![]() Movies are out but can still be enjoyed without the use of Remote Play. Remote Play seems to be just that: remote play. They are small, light, and most tablets, laptops, and PCs can run them without issue. As for the physical copies of your DVDs and Blu-rays, if you want to watch them while away from home you can always pick up an external optical drive. Most of these services (Netflix, Hulu, PlayStation Video, etc.) have mobile apps, which can be used on the Vita, phone, or other remote devices. ![]() In a last-ditch effort, I tried PlayStation Vue and yet again it was unavailable to stream on Remote Play.ĭespite being blocked at every turn to find a streaming service that wasn't among the aforementioned bunch, this isn't the end all be all for remote streaming. including Netflix, Hulu, Prime Video, and even PS Store purchases. When PlayStation says "some services cannot be played" what it means is most cannot be played. It might seem silly, especially if you're trying to stream a movie you've already paid for to watch it yourself, but PlayStation doesn't know if you're streaming the disc for personal use or not so it has to say no to all.
Perl is an interpreted language, as mentioned above, written in C with an extensive collection of modules written in both C and Perl. It is widely used in the field of finance and bioinformatics due to its ability to handle and process large volume data sets. It is used by most of the suppliers or software manufacturers to package and deploy the software commercially (including COTS and bespoke). Perl is mainly portable, with some degree of customizations between Windows and macOS.ĭevelopers also use the language to build and deploy. The system administers love this language as they can enter a single command to accomplish a goal that otherwise would require a program to be written. Perl is often used as a departmental glue between multiple systems that are not homogenous or allowed to interoperate seamlessly. In earlier days, programmers used Perl to write CGI scripts. Perl is popular among programmers, along with other programming languages like PHP and Python. Perl is also extendable and provides libraries to support XML and integration to databases including Oracle and MySQL.Perl has the highest level of security and is even certified by a third-party security organization called Coverity, with low defect density and fewer security flaws.Perl comes with powerful utilities (APIs) for text manipulation that are useful for working with XML, HTML, and other markup languages.Perl doesn’t enforce or recommend any particular programming technique like procedural, object-oriented, or functional-the interpreter, along with its functions, stands as a single specification of the language.and other conversions, which are not legitimate, that are thrown out as errors during execution It also does typecast during the run time like converting an integer to string etc. ![]() All of the versions of Perl include auto data typing and memory management the interpreter understands storage and memory requirements for each data type, allocates, and deallocates memory based on usage.Perl5 also has added features to support complex data structures and an object-oriented programming model that includes packages, references, and directives for the compiler.Perl also has inbuilt functions which are often used in shell programming, such as sort and system facilities utilization. ![]() unambiguously, like an array, scalar, hash, through leading sigils It also borrows features from shell scripting for identifying data types.Perl gets most of its features from C, including variables, expressions, statements, control structures, and subroutines. ![]() The following list of features are available in Perl and are broadly adopted from other programming and scripting languages: ![]() Humans have, in Harari's chosen metaphor, become gods: they can create species. He concludes by considering how modern technology may soon end the species as we know it, as it ushers in genetic engineering, immortality, and non-organic life. Harari also emphasizes the lack of research into the history of happiness, positing that people today are not significantly happier than in past eras. He sees this as one driver of early modern European imperialism and of the current convergence of human cultures. ![]() Harari sees the Scientific Revolution as founded on innovation in European thought, whereby elites became willing to admit to, and hence to try to remedy, their ignorance. Harari argues that money, empires, and universal religions are the principal drivers of this process. For centuries, the majority of humans lived in empires, and capitalist globalization is effectively producing one, global empire. In discussing the unification of humankind, Harari argues that over its history, the trend for Sapiens has increasingly been towards political and economic interdependence. Humans' violent treatment of other animals is a theme that runs throughout the book. Harari's key claim regarding the Agricultural Revolution is that while it promoted population growth for Sapiens and co-evolving species like wheat and cows, it made the lives of most individuals (and animals) worse than they had been when Sapiens were mostly hunter-gatherers, since their diet and daily lives became significantly less varied. Accordingly, Harari regards money as a system of mutual trust and sees political and economic systems as more or less identical with religions. Harari claims that all large-scale human cooperation systems – including religions, political structures, trade networks and legal institutions – owe their emergence to Sapiens' distinctive cognitive capacity for fiction. He argues that these beliefs give rise to discrimination – whether racial, sexual or political - and it is potentially impossible to have a completely unbiased society. He further argues that the ability of Sapiens to cooperate in large numbers arises from its unique capacity to believe in things existing purely in the imagination, such as gods, nations, money and human rights. He argues that prehistoric Sapiens were a key cause of the extinction of other human species such as the Neanderthals and numerous other megafauna. Harari's main argument is that Sapiens came to dominate the world because it is the only animal that can cooperate flexibly in large numbers. Yet the situation of other animals is deteriorating more rapidly than ever before, and the improvement in the lot of humanity is too recent and fragile to be certain of. In the last few decades we have at least made some real progress as far as the human condition is concerned, with the reduction of famine, plague and war. But did we decrease the amount of suffering in the world? Time and again, massive increases in human power did not necessarily improve the well-being of individual Sapiens, and usually caused immense misery to other animals. We have mastered our surroundings, increased food production, built cities, established empires and created far-flung trade networks. 1543 CE, the emergence of objective science). 34 CE, the gradual consolidation of human political organizations towards one global empire). 10,000 BCE, the development of agriculture). 70,000 BCE, when imagination evolved in Sapiens). He divides the history of Sapiens into four major parts: Harari surveys the history of humankind from the Stone Age up to the 21st century, focusing on Homo sapiens. The academic discipline of history is the account of cultural change. Harari's work situates its account of human history within a framework: he sees the natural sciences as setting the limits of possibility for human activity and sees the social sciences as shaping what happens within those bounds. While it was positively received by the general public, scholars with relevant subject matter expertise have been very critical of its scientific and historical claims. The account is situated within a framework that intersects the natural sciences with the social sciences. The book, focusing on Homo sapiens, surveys the history of humankind, starting from the Stone Age and going up to the twenty-first century. Sapiens: A Brief History of Humankind ( Hebrew: קיצור תולדות האנושות, ) is a book by Yuval Noah Harari, first published in Hebrew in Israel in 2011 based on a series of lectures Harari taught at The Hebrew University of Jerusalem, and in English in 2014. |