![]() We've been trained to think that a 50mm lens is "normal", a 35mm lens is "wide normal", a 28mm lens is "wide", a 24mm lens is "very wide", a 20mm lens is "super wide", a 16mm lens is "ultrawide" and so on. The problem is that most of us have been trained to think in terms of focal length rather than field of view when comparing lenses. All 35mm lenses and lenses designed for use on APS-C DSLRs are marked with their true, actual, focal length. Whether you mount that lens on a 35mm camera, a medium format camera of a large format camera doesn't change its focal length. The focal length of a lens is the focal length of the lens. So why does the format size matter and what effect does it have on focal length? Well the answer to the second part of the question is "none". The "crop" name comes from the fact that if you take a full frame image (24x36mm) and crop the center 15x22.5mm out of it, you get an image the size of "crop" sensor cameras. ![]() This just happens to be close to the image size which was used with the short-lived APS film format, specifically the APS-C image size of 25.1 × 16.7 mm (there was also APS-H and APS-Panoramic format). So camera makers decided to use a smaller sensor, around 15mm x 22.5mm. In the early days of digital sensors it was not possible to make digital sensors that big in any sort of quantity, and the ones you could make were so expensive that hardly anyone would have been able to buy a camera which used one. A full frame 35mm camera (whether it uses film or a digital sensor) records an image that is approximately 36mm x 24mm in size. No wonder people get confused.įirst, what is a crop sensor camera? Well, it's simple. the focal length that corresponds to the "6.1-35mm" written on the digicam lens. However.when it comes to DSLRs they don't tell you the "equivalent" focal length, the tell you the true focal length, i.e. However if you actually look at the camera you will see " 6.1-30.5mm 1:1.8-2.8" written on it, so Canon is applying a multiplier to the description of their lens and telling you what equivalent lens on a 35mm full frame camera would give you the same field of view as the lens on their small sensor digicam. For example the Canon website describes the Powershot G15 this way "The excitement starts with the newly developed 5x Optical Zoom with 28mm Wide-Angle, bright f/1.8 (W) – f/2.8 (T) lens". The confusion isn't helped buy that fact that compact digicam lenses are often described by their manufacturers in terms of "equivalent" focal length, while their APS-C lenses are described in terms as actual focal length. The photography forums are full of confused newcomers still asking about focal length, field of view, aperture etc. ![]() Crop Sensor (APS-C) Cameras and Lens Confusionĭespite the fact that so called "crop sensor" digital SLRs have been with us since 1999 (the Nikon D1, with the Canon 30D following in 2000), there's still a huge amount of confusion out there about exactly what a "crop sensor" camera is and what effect is of using a lens with a crop sensor camera rather than a full frame camera.
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Task :single_record = > :environment do #This function loops over the content of the csv file and creates a new record for each of them. # lib/tasks/one_record_at_a_time.rake require 'csv' require "benchmark"ĭesc "imports data from csv to postgresql" Here’s a sample code to do this in Rails, assuming we have the source data in a CSV file: One easy way to load data to a Postgres database is to loop through the data and insert them one at a time. Other articles and resources you might like Speed comparison of different ways to load data into Postgres with Rails Using background jobs to load data to your Postgres databaseįinal Thoughts About Loading Large Data Sets into a PostgreSQL Database with Rails Cons of using PostgreSQL Copy with Activerecord-copyĤ.Pros of using PostgreSQL Copy with Activerecord-copy.Using PostgreSQL Copy with Activerecord-copy to load data to your Postgres database Cons of Bulk Inserts with Active Record in Ruby on Rails and Postgres.Pros of Bulk Inserts with Active Record in Ruby on Rails and Postgres.Cons of single-row inserts with Postgresīulk Inserts with Active Record Import to load data to your Postgres database.Pros of single-row inserts with Postgres.Inserting one record at a time to load data to your Postgres database So what’s the fastest way to load data to a Postgres database in your Rails app? Let’s look at four different methods, and then we’ll see which is the fastest. However, with the wrong tools and solutions, its powers can be undermined. PostgreSQL has a strong reputation for handling large data sets. According to a recent study by DB-Engines (PDF), PostgreSQL’s popularity rating increased by 65 percent from January 2016–January 2019, while the rating of MySQL, SQL Server, and Oracle decreased by 10–16 percent during the same period. We’ll go over their pros and cons, so you can choose the method that works best for your situation. In this article, I’ll explain a few ways to load data to a PostgreSQL database with Rails. ![]() There are several ways you can load data from an old Rails app or other application to Rails. Whether you are loading data from a legacy application to a new application or you just want to move data from one database to another, you’ll most likely need to create a migration script that will be accurate, efficient, and fast to help with the process - especially if you are planning to load a huge amount of data. Data migration is a delicate and sometimes complicated and time-consuming process. In the meantime, drivers can use our Southwest Louisiana Live Traffic Map, traffic updates, and traffic cameras to help navigate the congestion and avoid construction zones. There have also been talks of building a new I-10 Calcasieu River Bridge between Westlake and Lake Charles, but so far no plans have been finalized. The widening project is expected to take several years to complete. Check Houston traffic map for current road conditions HOUSTON, Texas (KTRK) - Getting around Houston can sometimes be a challenge unless you know how to get around. One such effort is widening I-10 to at least six lanes in most of Southwest Louisiana. There have been several efforts made to try to alleviate the traffic congestion problem in Southwest Louisiana. 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This means the source code is freely available and I doubt the creators would end up charging for it. Once it does reach its v1.0 release I think it’ll stay free because the entire project is on GitHub. It’s currently in beta so there are many features still being worked out and smaller bugs in the process. You can download the program totally free of charge from the main website. That said, if you do wanna give it a shot you’ll be impressed. It’s exclusive to MacOS only so it’s not an option for Windows or Linux users. Storyboard Fountain is a newer program that I found just recently. However it would be worth learning if you want to work in animation someday. It is not necessary to buy this in order to create a pro-level board. To put it bluntly: Toon Boom Storyboard is really the professional’s program. Plenty of support across all the typical art industry programs. Easily import scripts from Final Draft or export your layered panels for Photoshop. You can also create dynamic camera movements along with some experimental 3D features that work nicely for 3D animators. But the Story Flow tool makes it a breeze for writers to switch between board & script to follow each sequence, each scene, and each act. ![]() It can work well for ad agencies or for board artists doing small skits. Toon Boom is definitely more of an animator’s program. It’s a way to sketch your boards and see how they’d animate, all while tracking your script to make sure your scenes are on target. Really it’s a combo of both sketching and animating together. So what exactly does this program give you? This monthly fee gives you a chance to test the waters and see what you think of Toon Boom without committing to a massive single use license. Now with that said, it does offer a cheaper monthly fee that most people could afford compared to the upfront cost. To my knowledge this is the most expensive storyboarding software on the market and it’s also the industry standard.Ī good majority of studios use Toon Boom for boarding & animating so this is something you may want to learn if you want to break into the industry. Looking at the complete opposite of free we’ll find Toon Boom Storyboard Pro. That is why Storyboarder makes such a great choice for beginners who need a simple application to practice their boards.įrom a single screen you can draw each shot, add dialogue/stage directions, and even port the entire thing into Adobe Photoshop if you need a larger toolset.Īlso Storyboarder comes with a play feature so you can demo your boards in a slideshow preview much like a real animatic for animation.Īn excellent program for presenting to clients, or just for mucking around and practicing on your own. I’d think if you’re a newbie to storyboarding then you’d want to save money at every turn. This runs on all 3 major operating systems and it’s 100% free to download and use forever. ![]() One of their coolest projects is Storyboarder, a free app made for visualizing stories. The team at Wonder Unit has developed some really cool stuff for filmmakers. I’ll go through all the best options in this post and get you started on the path to magnificent digital storyboards. So what kind of software is best for storyboarding? And which programs offer the best features to support your creative projects? ![]() If you search around you’ll find plenty of options but they each have a range of features, benefits, and prices(some free!) The entertainment industry needs quality storyboard artists and those artists need great software. That means if you buy something we get a small commission at no extra cost to you( learn more)įrom action scenes to snappy dialogue, everything can be captured in a great storyboard. Resources Animation Disclosure: This post may contain affiliate links. ![]() She's not sneaking out in the middle of the night to go have kinky sex I know without question that Twilight is justĪs faithful to me as I am to her, she's actually sitting on the couch Sexual situations with the same person over and over, and that personĭon't get me wrong here though, this isn't a jealousy thing. ![]() It's been bothering me lately every time I go on those sites and see aĭozen or so pieces of art people have drawn depicting my girl in various She's my fiance who I love with all my heart and soon to be my wife. I often go on Īnd Rule34.Paheal to see what new erotic art people have drawn of her.īut to me she's more than a cartoon character who's sexually attractive, And hey, I think she's really attractive too so I To you I'm sure Twilight Sparkle is just a cartoonĬharacter you think is really hot, so I imagine you wouldn't thinkĪnything of having your friends draw sexually explicit art of her asīirthday gifts for you. Now your probably wondering why I'm telling you all this and how itĬoncerns you. Where's the problem? I don't think there is one, and anyone who knows What if it's weird? If it makes me happy and it doesn't hurt anyone then Me with joy every single day of my life and I've never been happier. Relationships, I just fell in love with her and my heart didn't give me So my loveįor Twilight isn't out of a lack of real world intimacy or Lasted 7 years, and a total of 6 different sexual partners. The truth is I've had plenty of real relationships and sexual partners That's prettyĭamn crazy." and wondering why I don't just go get a real girlfriend. Someone who doesn't know me you're probably going "Wow. Thing of beauty and quite admirable, but from the outside perspective of Partner as smart, funny, beautiful, and all around wonderful as her.Īll my friends and the people who know me well say that my love is a Me, I can't help but wonder how I ever got to be so lucky as to have a The pillow next to mine, with her gorgeous violet eyes staring back at And every morning when I open my eyes and see her head on No doubts in my mind that it's the mare I love who's lips are pressedĪgainst mine. When I hold her in my arms and kiss her there are When I look at her I see Twilight Sparkle. Vegetarian restaurants, we go shopping together, I take her out forĬoffee, we do social activities together like hanging out with friends,Īnd I talk about her as if she is Twilight, because to me she very much With at night, and take out on the town to do all the fun things Sparkle plushie that I can hug, kiss, cuddle up in bed to go to sleep Love in a real tangible way I have a beautiful hand made custom Twilight With all my heart and I'm 100% committed to that love. Kind of relationship with anyone other than the mare I adore. By that I mean I don't date anyone else, Iĭon't sleep with anyone else, and I have zero interest in having any Have been for about 11 months now and at this point I'm in a committed You see, I'm totally head over heels in love with Twilight Sparkle. ![]() Now before you go thinking "This guy is eitherĬompletely crazy or just screwing with me." please hear me out on this. That will let me marry someone that most people would consider aįictional character. And yes, I have actually found a wedding chapel On getting married next June or July should everything go as plannedįinancially speaking. The reason I ask this is that Twilight is my fiance, and we're planning To give you sexually oriented pony art as gifts) draw some pony other It simply, I would really appreciate it if the next time your birthdayĬomes around you would request that your clop artist friends (who like You'll take the time to read it and consider what I have to say. This may the be the strangest message you'll ever receive but I do hope ![]() If you type for “do a barrel roll,” the entire results page will rotate 360 degrees. In November 2011, Google jumped on board the meme by adding an easter egg to their search results. During live streams of video games, commenters occasionally try to demand that the person playing “do a barrel roll!” either to see if they’ll actually do it or just to be annoying. People on the internet blurt it out as a non-sequitur. Sometimes it’s used to refer to someone or something literally rolling over in real life, and not just in an image or gif. People still use it on social media as a catch-all answer. This now-decades-old meme continues to be popular today, even beyond image boards. What should I do?”), you could unhelpfully answer with “Do a barrel roll.” The earliest entry on Urban Dictionary, which is from January 30, 2004, also points to do a barrel roll as a facetious catch-all answer to questions of “life, the universe, and everything.” For example, if your friend were to ask you for advice (e.g. It was mainly used to caption images or gifs of people, animals, and objects either rolling completely around or unsuccessfully attempting to do so. The meme was originally popular on the image board 4chan in the early 2000s. The sarcasm present when someone tells you to do a barrel roll probably hinges on the perceived uselessness, or at least absurdity, of using the trick tactically. To make matters worse, Hill went on to explain (at some length) that the aileron roll probably wouldn’t even help in defending a spaceship. Sadly, as Discover’s Kyle Hill pointed out in April 2014, the maneuver shown in Star Fox isn’t a barrel roll at all, but a different trick called an aileron roll. The urgency of Peppy’s repeated demand inspired the internet meme. The term started becoming popular in the 1920s, during the early days of dogfighting.Īccording to Know Your Meme, the phrase do a barrel roll comes from the 1997 video game Star Fox 64, where a character named Peppy Hare repeatedly insists that the player perform the maneuver to avoid being hit by lasers. If you like more fun games like this check out our guide on Google Memory Games.The barrel roll itself is a real-life aeronautics maneuver where an airplane does a single turn along its longitudinal axis. That’s all you need to know to play “do a barrel roll”. You can even click on the buttons at the top to make the page spin 20, 100 or even 1000 times. The trick is to do it twenty times in a row. Now watch as the page spins 1000 times till it shatters. You can also practice doing a barrel roll while surfing the web. ![]() The steps mentioned above will take you to Elgoog, which is where all of Google’s previous easter eggs can be found. Preppy’s advice is now part of internet meme history and the developers at Google honor it by adding it as an easter egg to the search engine. Players could then heed his advice by pressing R or Z on their Nintendo 64 console to make Fox perform a barrel roll. A common tagline that one of Fox’s friends Preppy shouts out during combat is “Do the Barrel roll”. Released in 1997, you play as the brave pilot Fox McCloud taking on the evils of the galaxy. This is a direct reference to the Nintendo cult-classic Star Fox 64. Of the many easter eggs and hints google has added over the years, Do a Barrel roll might just be one of the best ones. Here’s how to spin pages 20,100, or even 1000 times. To try it out yourself, type “Do a barrel roll” on the Google search bar. Let’s look at how to play Do a Barrel Roll 20, 100, and even 1000 Times. The search engine also has a ton of fun games, secrets, and pop culture references that the developers have snuck in to give the page a quirky personality. This search engine is the first site many of us when we browse the web. Cre en 1975, RFI est une source d'information de premier plan pour les auditeurs francophones travers le monde. Du lundi au vendredi sur l'antenne de RFI 16 h (TU) puis sur le site Le. RFI, ou Radio France Internationale, est une station de radio franaise internationale qui propose une couverture globale de l'actualit, de la culture et des vnements du monde entier. Las últimas noticias en Francia, en América Latina y en el mundo entero. The World Health Organization states on its website that following a large number of studies that "no adverse health effects have been established as being caused by mobile phone use". Un vrai journal d’information pour suivre l’actualit internationale en franais. Siga toda la información política, cultural, deportiva y científica en directo en RFI. Regulators in a number of countries have limits on the amount of electromagnetic radiation mobile phones may emit to prevent adverse health effects. RFI (Radio France Internationale) is a French news and current affairs public radio station that broadcasts worldwide in French and in 15 other languages. Les plus grandes radios en ligne de France dans. When contacted by AFP Apple did not have an immediate comment. Écoutez RFI Journal - Français Facile en direct et gratuit sur linternet. "Otherwise, Apple will have to recall them."ĪNFR noted that tests that measure the electromagnetic radiation absorbed at a distance of five centimetres was in compliance with the limit of 2.0 watts per kilogram.ĪNFR said its agents would verify beginning Wednesday that that iPhone 12 models were no longer being offered for sale in France. "Concerning phones already sold, Apple must in the briefest of delays take corrective measures to bring the affected phones into compliance," said the ANFR in a statement on its website. ![]() The European standard is a specific absorption rate of 4.0 watts per kilogram in such tests. It said accredited labs had found absorption of electromagnetic energy by the body at 5.74 watts per kilogram during tests simulating when the phone was being held in the hand or kept in a pocket. The ANFR said it "ordered Apple to remove the iPhone 12 from the French market from September 12 due to the model exceeding the limit" for electromagnetic absorption by the body. The French agency that regulates radio frequencies, the ANFR, said testing found that the model emits more electromagnetic waves susceptible to be absorbed by the body than permitted. ![]() When you hear two sound frequencies that are close together, but not identical, a part of your brain called the superior olivary complex can be “tricked” into hearing a binaural beat. This causes many different parts of their brain to become synchronized, which “overloads” their brain, leading to a seizure. For example, the brain activity of people with epilepsy can be easily entrained to a specific frequency of flashing lights. Įntrainment isn’t unique to binaural beats in fact, it is a common aspect of brain function. According to some researchers, b inaural beats could then enhance or suppress the different cognitive and emotional functions associated with different types of brain waves. The idea behind binaural beats is that listening to them could increase the strength of certain brain waves throughout the brain. This synchronization of neural activity across different brain areas is called “ entrainment” and is the main way that binaural beats cause changes in our brain waves. ![]() In other words, this part of the brain acts like the conductor of an orchestra, coordinating and synchronizing the activities of many neurons throughout the rest of the brain. ![]() The superior olivary complex can be ‘tricked’ into hearing a beat when it senses two close frequencies it responds by synchronizing neuronal activity in other parts of the brain. įig (a): Schematic depiction of the seeds in the auditory pathway: Primary auditory cortex (PAC) medial geniculate nucleus (MGN) inferior colliculus (IC) and superior olivary complex (SOC). This brain area allows us to identify the direction of sounds. The part of our brains that first processes sound inputs from both ears is called the superior olivary complex, which is located in the brain stem. Available studies are small and low quality. ![]()
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