The 2018 FIFA World Cup is in full swing, with the last few matches about to take place en route to the Round of 16 on Saturday. While the world’s greatest football players are taking center stage, another main attraction in the tournament is the football world’s latest technology: the Video Assistant Referee.
The Video Assistant Referee or VAR has been adopted in sports like tennis and rugby, and recently by football leagues such as the English FA Cup and the Bundesliga in Germany. Ideally, the VAR helps make decisions for referees much easier and more accurate — especially for crucial, game-changing calls. But is the technology useful and helpful in every possible way?
What is the VAR?
The VAR is a video system that feeds information to referees on the pitch through a wireless earpiece. Assistant referees gather the information away from the stadium and forward these to the referees when a call is contested. The VAR marks the huge step football leagues are taking to digitize football, and has been used since last year.
It utilizes a goal line technology that allows the cameras in the stadium to scan the pitch at every minute. With this technology, movement on the pitch is detected at all possible angles and calls can be made more precisely. Assistant referees inside a control room have access to all these cameras and they send live feed to the pitch via tablet or iPad should the referees want to look at the footage themselves.
The VAR reviews game-changing calls on the football pitch at the time a protest is filed. FIFA lists only four game-changing calls to be considered: goals, penalties, direct red card incidents, and mistaken identity. The VAR checks the validity of these calls and sends the information to the referees. Do note, however, that the referees themselves still have the final decision on what call to make.
The system made its debut in a FIFA Club World Cup in December 2017 between Atletico Nacional and Kashima Antlers. The referee rewarded Kashima with a penalty after reviewing a play inside the penalty box.
Putting the VAR to work
2017 also saw the VAR’s debut in the English FA Cup, but it had its own set of controversies along the way. During a quarterfinal match between Tottenham and Rochdale, a goal by Tottenham was reversed for unclear reasons cited by the VAR. German football league Bundesliga also utilized the VAR during its latest season, but received mixed reactions from players and fans.
In the 2018 FIFA World Cup, the VAR takes center stage as a decision-making aide for referees in the group stages. The first instance was a non-call on a foul by Spain’s Diego Costa in their 3-3 epic against Portugal. Costa would slice the Portugese defense to tie the game at 1-1 at the time, but did so while taking down Pepe from Portugal. After the review from the VAR, the referee stood by his decision to count the goal.
The second instance happened in the France-Australia game when French striker Antoine Griezmann was tackled inside the box, yet the referee called for play to continue. Griezmann received a pass from Paul Pogba, and virtually blitzed through the Socceroo’s defensive line. Griezmann was awarded the penalty after reviewing footage from the VAR as the French went on to win, 2-1.
The third instance was in the Peru-Denmark game when another penalty was awarded to Christian Cuerva of Peru. Denmark’s Yussuf Poulsen tackled the Peruvian in the box, yet the referee called for the play to continue until the incident was reviewed via VAR. However, Cuerva missed the penalty and Poulsen scored in another possession to give the Danish the win, 1-0.
A VAR too high or too low?
While the VAR has only been around for well over a year, it isn’t exempt from both praise and criticism. Many people have shown their praises for the newest technology applied to the football world. The VAR now adds certainty and legitimacy to calls made by referees during matches, instead of them making the same wrong call every time. With football players and managers focusing on the tiniest of details to improve their game, information from the VAR becomes important.
The VAR provides an opportunity for football games to be fair and balanced. Referees now have different vantage points to look at when making calls that ultimately change the outcome of the game. People came to see a quality match wherein the players truly shine, but sometimes the referee’s poor decisions hamper that. In this regard, there is no excuse for not making the right decision with all the video evidence available.
However, a lot of people also have strong feelings against using VAR. While the effort to make the right calls is appreciated, it gets in the way of what makes football so special. When referees call for the VAR — especially with contested goals — fans become anxious instead of jubillant. Usually, fans go into a frenzy the moment the ball goes through the net — no replays needed. It’s as if the game feels all too unrealistic because of all the technicalities.
For football players and coaches, the VAR only adds confusion to fans. Because some football stadiums are built without any big screens, fans become unaware of what’s happening when the referee calls for the VAR. Iran’s coach Carlos Queiroz lambasted the use of the VAR for close, judgment calls — particularly the offside call on his squad in a loss to Spain. He believes that the VAR was put in place to correct obvious mistakes by referees, not debatable calls.
The VAR is a fairly new technology introduced in the world of football, and surely, it’s not perfect. It’s a bold take on digitalizing football, keeping up with the technological demands of today. Because football is decided by people making the right calls at the right time, the VAR becomes an important part in establishing the basis for such calls. The VAR is a useful solution for referees to make the right decisions on the pitch.
However, we must be critical about how the VAR should play in during very crucial moments in the game. The VAR should help give fans a fair yet exciting football match without losing its spirit. With the Round of 16 coming up, all eyes will be on the VAR and whether it will help make the road to the finals interesting or not.
At the end of the day, football fans came to see the best players in the world do what they do best, and no amount of technology should get in the way of that.
Explaining OLED screens and Dark Mode
Why that screen fits in the dark
Most of the applications you’re currently using must have rolled out their own version of dark mode by now. The smooth transition from a light to dark interface can be done through a push of a button, or by sending the moon emoji on Messenger. A lot of people also find dark mode quite sexy, and that’s probably because of the screen they’re looking at.
A lot of newly released smartphones now have OLED screens, and dark mode seems to work best on such displays! But why is that? How do OLED panels allow dark mode to flourish?
Better, blacker, affordable screens
Organic LED (light-emitting diode) or OLED is essentially a kind of display technology. In a nutshell, OLED panels allow for better and clearer images and colors.
Thin layers of carbon fiber make up OLED screens. Because of these lightweight fibers, screens show brighter and more vibrant colors. Apart from that, OLED screens show deeper blacks and reduce instances of motion blur when navigating. The best part is that OLED screens are becoming gradually cheaper to manufacture. That explains why more and more of today’s smartphones use this panel.
More colorful than the rest
In comparison to regular LED screens of the past, OLED promises more accurate colors by producing light from individual pixels, instead of relying on backlighting. Back then, LCD screens relied heavily on the backlight of the display to make colors pop. Although, such displays also make the colors seem washed, especially when compared to OLED.
However, OLED’s colors don’t always turn out better than on LED and LCD screens. One such case is when you turn your screen’s brightness to its maximum, especially under strong daylight conditions. LED and LCD screens are designed to perform relatively better in color accuracy when your screen’s brightness is set to max. OLED screens were not designed for maximum brightness, so colors at that point would be saturated.
Which OLED is best?
There are two types of OLED technologies that currently exist: AMOLED and PMOLED. A lot of people hear AMOLED tossed around a lot because lots of smartphones use it. Essentially, AMOLED uses a storage capacitor that controls how much light each individual pixel will give off. It’s the one responsible for projecting all sorts of vibrant colors on most OLED smartphone screens. Apart from that, AMOLED screens do support wider resolutions at a more affordable and efficient rate.
PMOLED, on the other hand, does not have a storage capacitor and instead relies on user control. Essentially, the user will control lighting settings, and the individual pixels will adjust accordingly. You can find PMOLED screens on smaller devices like older iPods and pocket Wi-Fi devices. Take note that these screens use more power to implement such color changes.
Joining the dark side
Ever since dark mode rolled out for different apps and interfaces, people have been contemplating on switching to it — and for good reason. On normal LED or LCD screens, the new feature does not bode well with the technology. The depth of the black their dark mode possesses is not reflected well, to the point that the blacks look more gray than actual black. This is much more obvious when the screen’s brightness is turned all the way up.
Aesthetically, dark mode looks better on OLED screens because of the technology’s emphasis on deeper blacks. Most OLED screens have capacitors that control light passing through each pixel, which also works for blacks and whites. As such, dark mode shows up deeper and blacker, which is the intended look compared to regular modes. But, there’s actually more to just aesthetics for this mode.
It’s also been proven that dark mode on OLED helps save your battery life. Google confirmed this at its Android Dev Summit, citing that on max brightness, blacks consume less power than all other colors. Individual pixels need less electricity to show blacks on screen, which results in lower power consumption through time. Note that Google got these findings through tests on their original Pixel smartphones and their own apps like YouTube.
What’s left for OLED and dark mode
Apps and operating systems are now starting to embrace or consider incorporating dark mode into their software. While apps like Twitter and YouTube introduced such an option early on, others are beginning to take notice. Of course, you’re gonna need the right screen to fully immerse yourself.
It has been proven: OLED and dark mode are indeed a perfect match. But, it is entirely up to you whether you want to stay in the light or switch to the dark side.
The new online generation: Explaining 5G internet
Faster, better, and more available?
Are you still bothered by slow internet in your country? Even with the advancements and supposed improvements in infrastructure, we’re all living in a 4G world. The current generation of internet connectivity is still present in today’s mobile and telecommunication networks. But now, a new generation has emerged, and it has the potential of taking the whole world by storm.
Let’s stop and ask first: What really is this new generation? How different is it from the existing generation’s internet? And, what needs to be done to welcome the change?
What really is 5G?
5G is the new generation we’re speaking of here. Specifically, it’s the next level of mobile network connectivity being rolled out at the moment. What 5G offers to everyone is pretty straightforward: faster internet speeds, close to zero latency, and improved accessibility. It’s expected that 5G will replace existing 4G technology once fully deployed in the near future.
Currently, 5G is still in its early stages of deployment — much like an early-access game. Companies are given plenty of time to integrate the 5G connectivity interface on their devices, or at least until March 2019. Once the initial deployment is done, 5G will be available in more devices, whether it’s your phone or your smart device.
A connection that comes in waves
Remember that one science class you had about the electromagnetic spectrum and visible light? Basically, devices that emit electromagnetic waves fall under a spectrum depending on their frequencies and wavelengths. For most network connections, their waves follow a similar concept, with 4G found on the leftmost and 5G in the middle.
There are two ways that 5G can work in any place at any time, and one of them includes waves. This strand of 5G is called the millimeter wave (mmWave), and is currently present in most research facilities and military devices. With mmWave, 5G connections are ideally faster (peaking at 10Gbps) and provide lag-free services because it adds additional bandwidth for devices to use. Although, it is held back by obstacles such as walls and floors that just bounce the signal off.
The second way is through a sub-6GHz spectrum. Unlike mmWave, the sub-6GHz spectrum is more of a middle-of-the-pack approach to 5G connectivity. Basically, 5G signals will strengthen connections that currently exist in the world like 3G and 4G. This is mostly because 3G (2.4GHz) and 4G (5GHz) fall under the 6GHz limit. This method is the more cost-effective approach, and it doesn’t easily experience interference.
How different is it really from 4G?
We always talk about how 5G is faster than 4G in terms of data transfer, which is true. But, there are other things that differentiate 5G from its predecessor. For starters, 5G connections can cover a wider area than 4G. This means that even if you’re far from your router or cell tower, you can still access 5G networks at the same speed. Just don’t be too far away, as the technology isn’t capable of reaching that far yet.
Apart from that, 5G is less prone to interference compared to 4G networks. Even if mmWave is hampered with the presence of obstacles, it still doesn’t stop it from performing relatively better than 4G. For example, even if there were several other antennas in your area, you still experience better speeds while on a 5G network compared to 4G. 5G targets devices directly, instead of spreading the waves across the whole area.
Finally, with 5G connections, more devices have access to the network. Currently, 4G networks still have a cap when it comes to the number of devices simultaneously connected. As more devices connect to the same 4G network, internet speeds tend to get slower. With 5G, however, adding more devices won’t hamper its overall performance mostly because of additional bandwidth and wider coverage.
What’s next for the new generation?
Believe it or not: We’re living in the early-access world of 5G. We hear about major telecommunication companies starting to adopt 5G in their mobile networks, and things are about to get bigger. While their data plans are available to the general public, several improvements to network infrastructure are to follow. We’re talking better signal towers, and more of them across the world.
In the future, 5G may not be limited to just mobile networks. Car companies are looking at the possibility of applying 5G to smart cars, especially for navigation. Cars on the road will be able to share data like traffic situation, road hazards, and other delays. Even things like virtual and augmented reality can make use of 5G for better simulations.
By March 2019, the early deployment of 5G will be finished. Hopefully by then, we can get more information on what 5G can do for the world. The new generation is here, but we still have to wait and see how far 5G will take us.
C is the key: Explaining USB Type-C
What really makes this new standard special
For years, people have grown accustomed to using USB ports for almost all of their devices. Whether you need to charge your phone using your computer or use a controller to play games, you can always count on a USB port to be readily available for you. But 2018 was the year of change and innovation, and the USB port you know and love welcomed change in a big way.
Introducing: USB Type-C, the newest port added to the family. Its round shape brought many new uses and functionalities to your ports. But, how different is it from its much older brothers? How have companies revolutionized its use in mainstream devices?
What is this USB Type-C port?
The USB Type-C (USB-C) port is a not-so-recent discovery in the world of tech. The USB Implementers Forum (USB-IF) developed this USB port back in 2013, and launched it into mass production the following year. The connector is a reversible oval shape, much different from the usual rectangular shape of the previous generation. Its reversibility allows any orientation of the cable for transferring files or charging your device.
USB-IF developed USB-C following the USB 3.1 standard. Such a standard was particularly used because of its faster transfer speeds and charging capabilities. With a USB-C port, you can transfer an hour-long movie in less than 30 seconds, provided you have the appropriate connector for it.
Computer and smartphone manufacturers have incorporated the USB-C port in most of their devices. One of the early adopters of the new technology was Apple, with their redesigned 12-inch MacBook in 2015. Other computer manufacturers followed in the later years, especially with the release of the Thunderbolt 3 technology used for gaming machines.
It’s the younger, faster and more all-around sibling
USB-C has been around for the past four years, and it has gradually developed into an all-around port for users. Alongside Thunderbolt 3, the USB-C port posts the highest data transfer speed across all the available USB connections in existence. Not only that, USB-C ports these days can now connect your devices to external GPUs and displays, and charge your devices. Most USB-C ports even support fast charging for smartphones.
While the technology behind it is supported by a USB 3.1 standard, it’s still very much different from other USB ports that use the USB 3.1 protocol. For starters, the USB 3.1 standard found in USB-C ports are USB 3.1 Gen 2 ports, which offer twice as much performance in data transfer as USB 3.1 Gen 1 ports. Most of the Gen 1 ports also use an older USB Type-A standard, which works for most of your gadgets and peripherals today. However, you would need more adapters for other functionalities, like displaying to a monitor.
But the USB-C port is a far cry from the old USB 2.0 and 3.0 protocols, which have been in existence for 14 years (and counting). Data transfer speeds for those two protocols are significantly slower compared to the USB-C port. An hour-long movie would ideally take around one to two minutes on a USB 2.0 port. Also, older USB protocols don’t really allow you to power up devices that need more electricity. So, charging devices on them might not be as fast.
Supercharged with Thunderbolt 3
So, you’re probably wondering what really makes a USB-C port just that fast. It’s not so much that it’s round, or that it’s new; rather, it’s the technology inside it. Late 2015 saw the arrival of the new Thunderbolt 3 standard specifically for USB-C ports. It first started out in most Windows laptops before making it to the 2016 MacBook Pro and several gaming motherboards.
What Thunderbolt 3 does for USB-C ports is to significantly increase its capacity and capabilities by a mile. We’re talking faster file transfer, heightened gaming experiences, and being able to plug in 4K displays for clearer images. Thunderbolt 3 also allows much bigger devices to be charged at a controlled rate. This is mostly evident with the MacBook Pro, several high-end Ultrabooks, and most recently, the 2018 iPad Pro.
The charging capacity brought about by Thunderbolt 3 deals with a tweak to how USB power delivery works. USB power delivery standards state that each USB standard has specific conditions that must be met to power up devices. Early versions of USB ports only allow a small amount of electricity (2.5W) for delivery, while USB-C allows for the full 100W. Basically, you went from just powering up your mouse and keyboard to charging your entire laptop.
What’s to come for USB-C?
At this point in time, you’re already living in the future that the USB-C port hopes to achieve. Suddenly, you can simply bring a USB-C cable around, plug it into a powerbank, and you can already charge your expensive MacBook. More and more devices are starting to adopt USB-C because of its potential to enhance your tech experience as a whole.
However, people still find it difficult to switch to USB-C, and for good reason. Most devices continue to use a USB Type-A or micro-USB connector, especially gaming controllers and peripherals. Also, they can argue that the old ports are more accessible. In a not-so-distant future, using a USB-C port could potentially replace a phone’s headphone jack.
The future of USB-C is still uncertain. Companies will iron out the new technology more so it can become mainstream for the future. Let’s just hope that by the time that happens, there won’t be a USB Type-D yet.
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