![]() In order to derive the Moon’s centripetal acceleration, we first need to find the circumference of its orbit.SfC Home > Physics > Gravity > Overview of the Force of Gravity We can get this from the circumference around its orbital path and the time period that it takes to go once around. In modern units it is 384,400 km, or 3.844 x 10 8 meters.Ĭoncept: in order to use the formula a c = v 2/ r, we are given r, but we will still need to find the orbital velocity of the Moon, v. The radius of the Moon’s orbit has long been known from observations. Worked Example: Calculating Orbital Accelerationsįind the centripetal acceleration of the Moon. Then you will have a chance to do a similar calculation for Earth’s orbit around the Sun. We can use the Moon’s orbital size and period to find the Moon’s speed, and then its acceleration, as we show in the next activity. For the Moon and Earth, you just plug in the Moon’s orbital speed and its distance from Earth. If you know the formula for centripetal acceleration, as Newton did, it is fairly easy to compute the value of the acceleration in a given situation. This acceleration points toward the center of the circular path, as the animation shows. Thus, there must be an acceleration that points in the direction of its change in motion. ![]() Since the direction of its motion is changing, the velocity of the object must also be changing. This object is moving in a circular path with a constant speed, but a constantly changing direction. See Figure 7.5 for an animated representation of this situation.Īnimated Figure 7.5: Object moving in a circular path. It continues to point in a direction tangent to the circular path, and the moving object travels farther along the circumference of the circle. The velocity vector never turns all the way toward the center of the circle, of course. For circular motion like this, where the only thing changing is the direction of the velocity vector, the vector is constantly turning around toward the center of the circle. For this reason, acceleration of this type is called centripetal (center-seeking) acceleration, hence the subscript “c.” It is sensible that the acceleration should point to the center if you recall that the acceleration is just the change in velocity over time. ![]() What is the direction of this acceleration? It is not obvious from this expression, but it turns out to be pointed along the radius of the circle, directly toward its center. We know from our earlier discussions that acceleration is a vector and has both size and direction. You might be surprised that the velocity is squared, but that is how this type of circular motion works. With this equation, we see that a larger velocity causes a larger acceleration, while a larger radius for the motion causes a smaller acceleration. Where \(a_c\) is the acceleration, \(v\) is the velocity, and \(r\) is the distance between the object and the center of the circle. The equation that describes the acceleration for circular motion is: Furthermore, if an object travels on a very big circle, say like the orbit of the Moon, its acceleration will be smaller than if it travels at the same speed on a smaller circle. Its velocity must change more quickly than the slower object. If we consider such motion, we realize that a faster object has a larger acceleration than a slower one. Why? Because as it travels along its path, the direction of its velocity is constantly changing, and changing velocity implies an acceleration. To keep an object moving in a circular path, it must be accelerated. (This is the time required to go 360 degrees around Earth, not the time from new moon to new moon.) Newton also knew that the Moon’s orbit around Earth is roughly circular, and that the orbital radius of the Moon is about 60 times larger than Earth’s own radius. Newton knew that the Moon circled Earth in 27.5 days. He used this insight and his new laws of motion to deduce the Law of Universal Gravitation. ![]() Figure 7.4: Isaac Newton had an insight that the same force that causes an apple to fall to the ground must also keep the Moon in its circular path about Earth. As he sat staring at the Moon, pondering what made it go around Earth, suddenly an apple is supposed to have fallen from the tree onto his head, causing him to exclaim “Eureka!” This story is probably untrue, but it does accurately relate the essence of Newton’s insight into gravity: The same force that causes apples to fall to the ground, and keeps people firmly on the ground, also causes the Moon to circle Earth (and Earth to circle the Sun). One legend suggests that Newton’s epiphany on gravity came as he was sitting under an apple tree on the Cambridge University campus where he was a professor.
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![]() ![]() Unfortunately, the media doesn't make too much effort to distinguish between them so the phrases are often used interchangeably, even though they are not exactly the same. We recommend enabling the former if possible, because the latter is less secure. 2FA vs 2SVĪmong the best practices recommended by cybersecurity experts are enabling two-factor authentication or two-step verification. The same study found that more than half (52%) of adult internet users have used two-factor authentication, but the problem is that 39% indicated that most of their passwords are the same or very similar to other passwords used for different accounts. These alarming numbers are from as recent as 2017. A measly 12% have used a password manager, however, while and only 3% regularly rely on password management software to secure their digital lives. Only a quarter of adults keep track of their passwords using a digital note or document, with just 18% saying that they save them using the built-in password-saving features available in most modern browsers. internet users say that they keep track of their passwords by memorizing them and around half keep the password to at least some of their online accounts written down on a piece of paper, according to a Pew Research study. The reality, as always, looks different: 65% of U.S. Given the cyber security risks that we are exposed to and the frequency of cyber attacks, you would expect more people to at least apply the two-step verification or enable two-factor authentication on their accounts alongside the use of a password manager. As you already know, passwords are the first line of defense against unauthorized access to user data. But Gmail account owners aren't the only ones leaving their digital lives unprotected, it's an issue for countless services. The result is quite alarming: only a fraction of users have added the extra layer of security to their accounts. It's about how many people we would drive out if we forced them to use additional security.” When asked why Google is not making it mandatory for all Gmail accounts, software engineer Grzegorz Milka said in an interview with The Register: “The answer is usability. Since then the Authenticator app has also been providing one-time passwords and it doesn't require a text message or voice call, just an app that generates a six-digit code that is valid only for 30 seconds. Access is then granted only if both the password and one-time code are correct. In 2011 Google rolled out a secondary layer of security for accessing Gmail accounts, where users receive a one-time password by text message or voice call each time they enter their password into the login panel. This provides an opportunity for hackers to crack those accounts open because they're protected only by a username and a password. Fast-forward to today, where less than 10% of active Google accounts use two-step verification (2SV). Google introduced its two-step authentication for Gmail accounts and gave users the option to strengthen their account security, but didn't make it mandatory. Two-factor authentication has been available for more than seven years but still no one is using it to protect their account. ![]() Often, these additional forms of energy are produced by a heat engine, running on a source of high-temperature heat. These energy forms typically include some combination of: heating, ventilation, and air conditioning, mechanical energy and electric power. In the majority of energy applications, energy is required in multiple forms. Machines converting energy contained in fuels to mechanical work or electric energy produce heat as a by-product. The burning of transport fuels is a major contribution to waste heat. The biggest point sources of waste heat originate from machines (such as electrical generators or industrial processes, such as steel or glass production) and heat loss through building envelopes. On a biological scale, all organisms reject waste heat as part of their metabolic processes, and will die if the ambient temperature is too high to allow this.Īnthropogenic waste heat can contribute to the urban heat island effect. Another STES application is storing winter cold underground, for summer air conditioning. An example of using STES to use natural waste heat is the Drake Landing Solar Community in Alberta, Canada, which, by using a cluster of boreholes in bedrock for interseasonal heat storage, obtains 97 percent of its year-round heat from solar thermal collectors on the garage roofs. The heat is stored in the bedrock surrounding a cluster of heat exchanger equipped boreholes, and is used for space heating in an adjacent factory as needed, even months later. Another is seasonal thermal energy storage (STES) at a foundry in Sweden. One example is waste heat from air conditioning machinery stored in a buffer tank to aid in night time heating. Thermal energy storage, which includes technologies both for short- and long-term retention of heat or cold, can create or improve the utility of waste heat (or cold). Instead of being "wasted" by release into the ambient environment, sometimes waste heat (or cold) can be used by another process (such as using hot engine coolant to heat a vehicle), or a portion of heat that would otherwise be wasted can be reused in the same process if make-up heat is added to the system (as with heat recovery ventilation in a building). Sources of waste heat include all manner of human activities, natural systems, and all organisms, for example, incandescent light bulbs get hot, a refrigerator warms the room air, a building gets hot during peak hours, an internal combustion engine generates high-temperature exhaust gases, and electronic components get warm when in operation. ![]() Waste heat has lower utility (or in thermodynamics lexicon a lower exergy or higher entropy) than the original energy source. All such processes give off some waste heat as a fundamental result of the laws of thermodynamics. Waste heat is heat that is produced by a machine, or other process that uses energy, as a byproduct of doing work. They emit additional heat in their use of electricity to power the devices that pass heat to and from the coolant ![]() Air conditioning units extract heat from a dwelling interior with coolant, and transfer it to the dwelling exterior as waste. ![]() In the original game, they are hard-earned. In the game, Dead Trigger 2, gold and diamonds are used as in-game currency which is used to unlock different features of the game. Along with the solo missions, this version of the game emphasizes more on the bigger picture. ![]() Hundreds of other players will be fighting zombies in the same persistent world as you. The Dead Trigger 2 Hk has a multiplayer mode. It is available on android as well as iPhones. There is no need to have any specific phone to play this game. The Dead Trigger 2 MOD APK can be downloaded free of cost. Modded features of Dead Trigger 2 MOD APK 1-Free download for Android and iOS: You are supposed to attack zombies from the flying helicopter. You need to snipe all the zombies to protect people. You can assist the people who are moving to safe zones. This version also gives you the chance to play in sniper mode. Shooting such mad and dangerous zombies is fun. For instance, boss zombies (they have superpowers and can survive 10 grenades), kamikaze (keep a box of explosives with them and can destroy the whole city any time), and many more. However, this new version has introduced many new types of zombies. The gameplay of the Dead Trigger 2 MOD APK is the same as the Dead Trigger MOD APK. Dead Trigger 2 Hk – (Best Zombie Shooting Gameplay) The player visits different continents to form an anti-zombie ally and save the country. Only a few characters are saved including a medic, an engineer, a gunsmith scientist, a smuggler, and you (the player). Like Zombie Catchers MOD APK, new species of zombies are arising which are much more dangerous than the previous ones. ![]() However, Alfred does allow a similar level of customizability for workflow abbreviations, even if they do all have to be set manually. Customizability – There’s no question that LaunchBar’s ability to learn users’ abbreviations and let them assign their own for anything in its catalog is a huge point in its favor.This is easily one of Alfred’s biggest advantages, perhaps its biggest. Workflows – LaunchBar’s action editor may or may not be superior when putting together your own custom actions (I actually didn’t know about it either until Tom pointed it out here, so I have no personal experience to speak on) but there’s no denying that, for whatever reason, the Alfred community has come up with vastly more workflows for non-coders like myself to choose from.Some more differences between Alfred and LaunchBar, and why I continue to use both, in no particular order: Indeed I’m considering to use Alfred as a “Low Energy” Replacement of LaunchBar on my future KabyLake MacBook Proīut, I think, by tweaking LB’s index appropriately, I can obtain the same (energy-efficient) results, without having to resort to Alfred. So, strictly unnecessary to say it, there is no reason to ever use Alfred instead of LB, except when you are low on resources (CPU, RAM). ![]() On top of that you don’t even have to assign the abbreviation explicitly, since LB is learning that from your use. In LaunchBar you can assign abbreviations like LMS to launch a script called Launch My Script. That‘s a pretty limited name space, since most of the combinations are already occupied. In Alfred you can assign hotkeys the usual way, i.e Modifier+Key. (That’s also the reason that Alfred doesn’t consume any RAM or CPU resources, as opposed to LaunchBar.) There are two (not more) crucial differences between LaunchBar and Alfred:Īlfred is entirely relying on the Spotlight index. I have been testing out Launchbar again and do see its pros. I suppose my real question is about the range of possibilities in both app, but I misworded my original question. I realize that I sort of changed the topic, and you definitely did answer my first question before. (Alfred, on the other hand, it uses the Spotlight index + some Caches => Many People complaining about the “sluggishness” of LB, but they don’t even realize that LB is working based on its own index) Keep in mind that Alfred is “substantially” a different thing: LB maintains its own Index, it works with that Index +Spotlight. With some points in favor of LB, and some points not in favor of Alfred. You have asked for ease of customization.Īnd I tried to answer this in the first posts. If you write an excellent script (“workflow’) for Alfred, and I write a mediocre script for LaunchBar (“Action”) you win.īut that’s not the point. OK, it’s always a question how you write your scripts. ![]() I don’t have too much experience with the latest version of Alfred. Please correct me if I’m wrong with something. This has to do with the way how the index works: LB relies (mainly) on its own index, while Alfred is dependent on Spotlight. I find, with LB you have more flexibility to customize the index, i.e. (As a sidenote: these Abbreviations can be assigned manually, or you just let LB learn them by using.) This way you have way more available combinations in LB. These don’t require modifier keys, an Abbreviation can be for example “ABC”.
![]() Gloin is a mid 400gram male juvenile out in daylight searching for food to try and gain enough weight to hibernate. Ori is now settling into the rescue on the last day of december. ![]() Luckily the finders knew what to do having brought another hedgehog in to us this winter. Ori is just 400grams and has been admitted after being spotted out in daylight on a common in freezing cold temperatures. The finders kindly leave food out for visiting wildlife including foxes and hedgehogs which luckily was just about keeping this little one alive but at 400grams it would not have survived through the whole winter. Oin is a 400gram juvenile hedgehog spotted in the finders garden eating alongside visiting foxes. Later in the year they had hoglets in their garden for the first time. Luckily the finders were hedgehog aware in fact having been a release site for a hedgehog treated at Willows earlier in 2014. She was spotted trying to drink from water that was frozen solid. Stories for some admissions pre 2014 can be found on the News pages archives.Īpril-May Admissions June-December AdmissionsĤ99gram Holly is another New Years Eve admission. Our time is pressured and our priority is to concentrate on the rescue and treatment of hedgehogs. This page will not show all admissions- that is not possible as we are busy for a small/medium sized rescue. I used to tell the stories of some of the admissions on the News pages however the news pages have now become more about larger news stories such as projects. This page has been created to give information and the stories behind some of our admissions. These fell firmly into the category of sentimental and arguably tacky gifts that kids often give to parents and grandparents. They probably cost five bucks each, purchased with my hard-earned allowance. One Christmas I gave both my grandmothers tiny ceramic angel bells with "Grandma" etched in blue ink. Wednesday: What're You Playing? - Discuss what's been on your gaming docket this past week.įriday: Find a Friend Friday - Search for other community members playing your game.Unpacking gave me the key to remembrance, unlocking corners of my mind where small memories that have subconsciously shaped me are tucked away. Tuesday: Self-Promotion - Share your own content, communities (ex: Discord), or projects. Post titles should say and comments should use the following format: Result If no entry is required, post the keys in an image and delete the thread when all keys are gone. PM the winner(s) with the key(s), edit the post declaring the winners, and PM the mods so we can flair the thread. best comment), a specific deadline is required. If you are doing a contest requiring entry (e.g. We are not currently taking requests to conduct surveys, interviews, or observations here. Failing to do so will result in post removal. Developers wishing to promote their games must contact mods for permission before doing so, explaining their game and the diversity of the staff. We love to highlight games and products whose staff is diverse. Posts & comments that include potentially triggering content of a violent and/or sexual nature, including screenshots of text, must be marked as such with a warning at the beginning of your post/comment or spoiler/NSFW tags, as appropriate. ![]() No posts that consist only of an introduction. Battlestation posts are only allowed on Saturdays or Sundays. ![]() The Self-Promotion post goes live on Tuesdays, Looking For Discord on Thursday, and the Find a Friend post goes live on Fridays. Looking for Group and self-promotion posts are allowed only in their respective megathreads. No posts that should be in one of our weekly threads. They are welcome to participate within discussions. We also ask that men do not lead discussions or asking of questions. There are other subreddits that are open to LFG from everyone, but this is not one of them. ![]() As this is a subreddit specifically for women, men using this subreddit to look for people to play with is explicitly disallowed. We highly discourage posts recruiting or targeting women from those who identify as male. The banhammer is stronger on posts from non-regulars who cannot be civil in controversial posts. Do not attack other posters or post discriminatory content (ex: racism, transphobia). ![]() We like that stuff here!įolks of all genders and identities welcome to join discussions here! Communityįor game-specific /r/GirlGamers subreddits, check out our multireddit Rulesīe civil and keep it on-topic. Or you know, just post some bad ass makeup tutorials inspired by video games. We also discuss topics around women in geek culture and debrief about experiences that occur as a result of their gender. This is a community space for ladies to hang out, talk about gaming, and game together. A delightfully polarizing term for women who game. ![]() When he needs to distract an enemy, Doc can throw his doctor’s bag out into the sight of an enemy and lure them to the bag. Doc also carries a syringe of poison for stealth melee attacks. This weapon is the only firearm that can be fired and not alert nearby enemies due to its silenced nature. His Colt Buntline Special pistol allows him to shoot enemies anywhere as long as there is nothing blocking his line of sight. He is a more specialized character, though can accomplish quite a bit on his own. Arthur ‘Doc’ McCoyĭoc McCoy is a gun for hire who joins up with Cooper. Cooper fires both his pistols in Showdown Mode. Cooper is the all-around utility character that can get through many challenges on his own. For firearms, Cooper carries two six-shooters and can use them to target two different enemies at the same time. He also has a coin which he can throw to distract enemies. He can sneak up on enemies and stab them or throw the knife a short distance to eliminate threats. John Cooper is the main protagonist and is available in almost all the missions. Not all characters are available in each mission, though a few missions allow you to use all five. The key to completing the missions is to use each character’s strengths to support the other characters. Each has different abilities and unique weapons and equipment. One of the most important features of Desperados III are the five main characters. A season pass is available which adds access to three future DLCs each of which contain a new mission that together tell the story of a new adventure set after the events of the main game. Desperados III is available for PC, XBox One, and Playstation 4 and ranges in price from $49.99 for PC to $59.99 for console. The game is designed by Mimimi Games which previously released a similar type of game set in feudal Japan, the popular Shadow Tactics. While some of the characters return, it also adds a new character. Its cast of characters also had more flavor and personality than the team of commandos.ĭesperados III is the prequel to the original Desperados: Wanted Dead or Alive. This game was set in the the Wild West of the United States instead of occupied Europe. Then in 2001, a new game of the same genre was released: Desperados: Wanted Dead or Alive. Instead of rushing in shooting as in most games, in order to succeed, you need to quietly clear a path to your objective without being detected. I liked the thinking and strategy aspect of the game. Set during WWII, players took command of a small group of specialized soldiers and spies to complete daring missions against overwhelming numbers of enemy soldiers. This stealth oriented, real time tactical game was unlike anything I had played before. The Backgroundīack in 1998, I had the opportunity to write the PrimaGames strategy guide for Commandos: Behind Enemy Lines. All the while, John Cooper is hunting for the man responsible for the death of his father. Set in the 1870s, Desperados III takes you from the Rocky Mountains of Colorado to the bayous of Louisiana, the deserts of New Mexico, the city of New Orleans and even down into Mexico. Desperados III is the latest in the series which takes you back to the old West with John Cooper and his associates. ![]() Taking to Twitter for this announcement, The Game Kitchen confirmed that Blasphemous has now sold a remarkable one million copies. The free update will be coming to Xbox One, Xbox Series X|S, PlayStation 4, Nintendo Switch and PC on December 9th 2021, with Wounds of Eventide introducing new bosses, areas, and items, underlining the stark truth that penitence never ends… it only changes. ![]() The difficulty of Blasphemous is not meant to close off the game from those who would not be saints and masters, but to welcome them with the experience of suffering, of trying, again and again, not with the intent to “dominate” the game and prove their self-worth to a competitive community, but to share their … Is Blasphemous DLC free?
![]() On Apple Silicon, support is a little more limited, primarily due to the need for ARM support. It lets Mac users install virtual versions of every iteration of OS X back to Lion. Used with an Intel Mac, Parallels lets users create virtual machines to run Ubuntu, Fedora, CentOS, Debian GNU, Mint, Red Hat, Suse Linux, and Kali. These improvements also make for a better employee on-boarding experience, as it seems possible to ship a new Mac to a remote worker and have the entire process of set-up and installation (including of Windows) managed using a single password thanks to Parallels and your chosen MDM provider. What this means is that it is much easier to maintain tight control of the Windows licenses across remote device fleets. The ability to manage Parallels customer experience program participation centrally in Parallels My Account.The ability by admins to deploy, provision, or transfer a Windows 11 virtual machine across employees’ Mac computers.Single Sign On (SSO/SAML) authentication for employees to sign in and activate Parallels Desktop with a corporate account.The Business Edition, however, adds valuable enhancements developed to better support Windows on Macs in remote workgroups. They can also use the enhanced plug-in for Visual Studio to analyze application performance. Software developers will want to use the network conditioner tools to help them set up their network in the Pro edition. Significant enhancements for business and pro users This support should extend to Stage Manager on the Mac, so you’ll see your virtual Windows or Linux environment(s) appear in the left-hand view when using Coherence mode. Additional improvements include macOS Ventura support, improved compatibility with x86 applications (including important applications such as AutoCAD) and improved USB 3.0 support for video devices. The company promises macOS Ventura support from day one. The company also says 99.99% of existing Intel-based PC applications will run happily on Apple Silicon macs using Parallels. It continues to be possible to argue that Windows run in Parallels on a Mac may be faster than on a PC, and no doubt someone will be testing just that. When run on an M1 Ultra chip such as inside the Mac Studio you’ll experience up to 96% faster performance than you got with Parallels Desktop 17. ![]() It’s all about performance of Windows in Parallels. It claims that it’s now possible to run more than 200,000 Windows apps and games on your Mac it has made the software compatible with Apple’s Pro Motion display and (for gamers) made it possible to run Windows games with a connected game controller. The Corel-owned software company has made significant improvements in performance. What has improved in Parallels Desktop 18? When used in Coherence mode, you get the added thrill of no longer needing to even think about which OS is running the software you use. That means, at the very least, opening the door for Apple to reintroduce Boot Camp if it chooses to, and allowing MediaTek to make Windows chipsets, something that the company has said it plans to do as soon as it can.This does exactly what it promises to do, making it possible to quickly install and run various operating systems on your Mac. Hopefully, Microsoft publishing this documentation is an indication that it's finally starting to open up the platform. While I knew the deal existed and that it would expire, I didn't know when it would expire. Running Windows 11 on Apple Silicon has been officially unsupported, despite the fact that Parallels has been doing it since the beginning.Īs we reported exclusively in late 2021, Microsoft had an exclusivity deal with Qualcomm, which is why Windows on Arm PCs only have Snapdragon processors. Even when it introduced VHDX files for virtual machines, the team indicated that it was for VMs that are already running on Qualcomm hardware. To this date, the Redmond firm really hasn't talked about running Windows on Arm on anything that doesn't have a Snapdragon processor. The real story here is simply that Microsoft is documenting how to run Windows 11 on an Apple Silicon Mac. Parallels, on the other hand, is still aimed at businesses but it more practical for the everyday user. Obviously, this is subscription-based and it's aimed at businesses. This is what it sounds like, basically using a remote desktop that's hosted in the cloud. The other option is Windows 365, also known as Cloud PCs. |
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