Nuclear submarines. Entertaining and unusual features

Finally, they are sent to their owners. Now it's time for fun, or rather learning. Users will have to tinker with the new gadget for some time in order to explore all its capabilities and use them to the maximum. We present to your attention a series basic functions, having become familiar with which, you will be able to work with the watch immediately after.

1. Buttons

— Power (on/off): You can turn your Apple Watch on or off by pressing and holding the wide button located on the side of the case.

— Return to the home screen: To get to the home screen, you need to press the wheel once Digital Crown.

- Switching applications: You can switch between the two most recently running programs by quickly double-clicking the Digital Crown.

— Screenshot: To take a screenshot, you need to press the Side button and Digital Crown at the same time.

— Scrolling pages: You can go to the top or bottom of the page using the Digital Crown, or simply by swiping your finger across the screen in the desired direction.

— Scaling: Use the Digital Crown to zoom in on a detail in a photo or an area on a map. It is worth noting that the ability to zoom using two fingers (as in the iPhone) is not available on the Apple Watch.

— Favorite contacts: for quick access to favorite contacts Just press the side button once.

— Apple Pay : payment system double click to the side button.

2. User interface

— Notifications: You can manage notifications that come to your Apple Watch using a dedicated app on your iPhone.

— Notification Center: Access the Notification Center on Apple Watch the same way as on iPhone - by swiping down from the top of the screen.

— Cards Glances : To view Glances, simply swipe up from the bottom of the screen.

— Card selectionGlances: Using the appropriate application, you can choose which programs and what information will be displayed in Glances.

— Location of application icons: Just like on the iPhone, to move an icon you need to press and hold it until it “jitters”, after which you can drag it to another location on the screen. You can also easily change your background using the iPhone app.

— Quick access to applications: Any watch face that supports functions collectively called complications allows you to quick access to applications. For example, in order to open the Activity program, you need to click on Activity in complications. In addition, you can launch this application through Glance.

— Strong pressure: to access additional functions user interface You need to press the watch screen a little harder.

3. Battery

- Term battery life devices: Apple claims the watch can last up to 18 hours on a single charge. However, there are features that can drain your battery in no time. Telephone conversations deplete battery resources in 3 hours, playing sports - in 6.5 hours.

— Charging time: Apple claims the Apple Watch battery can charge 80% in 1.5 hours. Time fully charged is 2.5 hours.

4. Additional useful features

— Apple Watch recoil force: When a notification arrives on Apple Watch, the Apple Watch uses the Taptic Engine to gently nudge the user. The strength of the push can be adjusted using a special application.

— Synchronization of music and photos: Sync stored on iPhone music library and photos from Apple Watch using the corresponding application.

- Activity tracking without iPhone: Over time the watch will learn physical indicators their owner and will be able to accurately track his activity without connecting to an iPhone.

— Apple Watch and water A: It must be remembered that it is not waterproof.

— Bracelets: You need to pay attention to the material from which the strap is made. For example, it is better not to soak leather bracelets in water, and fluoroplastic is sensitive to some chemical compounds.

In the 50s, a new era began in underwater shipbuilding - the use of nuclear energy to propel submarines. According to their properties, nuclear energy sources are the most suitable for submarines, since, without the need for atmospheric air or oxygen reserves, they allow one to obtain energy for an almost unlimited time and in the required quantity.

In addition to solving the problem of long-term movement underwater at high speed, the use of a nuclear source removed restrictions on the supply of energy to such relatively high-capacity consumers as life support devices and systems (air conditioners, electrolyzers, etc.), navigation, hydroacoustics and control weapons. The prospect of using submarines in Arctic regions under ice has opened up. With the introduction of nuclear energy, the duration of continuous navigation of boats in a submerged position began to be limited, as many years of experience have shown, mainly by the psychophysical capabilities of the crews.

At the same time, from the very beginning of the introduction of nuclear power plants (NPPs), new complex problems that arise have become clear: the need to ensure reliable radiation protection of personnel, increased requirements for the professional training of personnel servicing NPPs, the need for a more developed than for diesel-electric submarines, infrastructure (basing, repair, delivery and reloading of nuclear fuel, removal of spent nuclear fuel, etc.). Later, as experience accumulated, other negative aspects emerged: the increased noise of nuclear submarines (NPS), the severity of the consequences of accidents of nuclear power plants and boats with such installations, the difficulty of decommissioning and disposing of used nuclear submarines.

The first proposals from nuclear scientists and military sailors to use nuclear energy to propel boats in both the USA and the USSR began to arrive in the late 1940s. The deployment of practical work began with the creation of submarine designs with nuclear power plants and the construction of ground stands and prototypes of these installations.

The world's first nuclear submarine was built in the USA - "Nautilus" - and entered service in September 1954. In January 1959, after completion of tests, the first domestic nuclear submarine of Project 627 was put into operation by the USSR Navy. The main characteristics of these nuclear submarines are given in table. 1.

With the commissioning of the first nuclear submarines, almost without interruption, a gradual increase in the pace of their construction began. In parallel, there was a practical development of the use of atomic energy during the operation of nuclear submarines, and a search for the optimal design of nuclear power plants and the submarines themselves.

Table 1

*Equal to the sum of the surface displacement and the mass of water in completely filled main ballast tanks.
**For American nuclear submarines (hereinafter) the test depth, which is close in meaning to the maximum.

Rice. 6. The first domestic serial nuclear submarine (project 627 A)

Rice. 7. The first American nuclear submarine “Nautilus”

Rice. 8. The first domestic nuclear submarine “Leninsky Komsomol” (project 627)

Already in 1960, due to a number of problems that emerged during operation, the liquid-metal coolant reactor on the Seawolf nuclear submarine was replaced by the S2WA pressurized water reactor, which was an improved modification of the NautiIus nuclear submarine reactor.

In 1963, the USSR introduced the Project 645 nuclear submarine into the fleet, also equipped with a reactor with a liquid metal coolant, which used an alloy of lead and bismuth. In the first years after construction, this nuclear submarine was successfully operated. However, it did not show any decisive advantages over nuclear submarines with pressurized water reactors being built in parallel. However, the operation of a liquid-metal cooled reactor, especially its basic maintenance, caused certain difficulties. Serial construction of this type of nuclear submarine was not carried out; it remained in a single copy and was part of the fleet until 1968.

Along with the introduction of nuclear power plants and equipment directly related to them on submarines, their other elements also changed. The first American nuclear submarine, although larger in size than the diesel submarine, differed little from them in appearance: it had a stem bow and a developed superstructure with an extended flat deck. The hull shape of the first domestic nuclear submarine already had a number of characteristic differences from the diesel submarine. In particular, its nasal extremity was given contours that were well streamlined in the underwater position, having a semi-elliptical outline in plan and cross sections close to circular. The fencing of retractable devices (periscopes, RDP devices, antennas, etc.), as well as the hatch and bridge shafts, were made in the form of a streamlined body like a limousine, hence the name “limousine” shape, which later became traditional for the fencing of many types of domestic nuclear submarines.

For maximum use all opportunities to improve the tactical and technical characteristics caused by the use of nuclear power plants, research was launched to optimize the hull shape, architecture and design, controllability when moving in a submerged position with high speeds, automation of control in these modes, for navigation support and habitability in conditions of long-term underwater navigation without surfacing.

A number of issues were resolved using specially built experimental and experimental non-nuclear and nuclear submarines. In particular, in solving the problems of controllability and propulsion of nuclear submarines, an important role was played by the experimental submarine "Albacore", built in the USA in 1953, which had a hull shape close to optimal in terms of minimizing water resistance when moving in a submerged position (the ratio of length to width was about 7.4). Below are the characteristics of the Albacore diesel submarine:

Dimensions, m:
length................................................. ........................................62.2
width................................................. ........................................8.4
Displacement, t:
surface........................................................ ....................................1500
underwater........................................................ ....................................1850
Power plant:
power of diesel generators, l. s........................................1700
electric motor power *, l. s........................about 15000
number of propeller shafts................................................... .......................1
Full submerged speed, knots................................................... ..33
Test immersion depth, m...................................................185
Crew, people................................................... ...........................................52

*With silver zinc battery.

This submarine was refitted several times and was used for a long time to test propellers (including coaxial counter-rotating ones), controls when moving at high speeds, new types of propellers and solving other problems.

The introduction of nuclear power plants on submarines coincided with the development of a number of fundamentally new types of weapons: cruise missiles (CR) for firing along the coast and for hitting sea targets, later - ballistic missiles (BR), long-range radar detection of air targets.

Advances in the creation of land- and sea-based ballistic missiles have led to a revision of the role and place of both land and sea weapons systems, which is reflected in the development of the type of nuclear submarines. In particular, missile launchers intended for shooting along the shore gradually lost their importance. As a result, the United States limited itself to building just one nuclear submarine, the Halibut, and two diesel submarines, Grayback and Growler, with the Regulus cruise missile, and the nuclear submarines with the cruise missile built in the USSR to hit coastal targets were subsequently converted into nuclear submarines with only torpedo launchers. weapons.

A single copy of the Triton radar patrol nuclear submarine built in the United States during these years, designed for long-range detection of air targets using especially powerful radar stations, remains in one copy. This submarine is also notable for the fact that, of all the American nuclear submarines, it was the only one that had two reactors (all other US nuclear submarines are single-reactor).

The world's first launch of a ballistic missile from a submarine was carried out in the USSR in September 1955. The R-11 FM missile was launched from a converted submarine from the surface position. From the same submarine, five years later, the first launch of a ballistic missile in the USSR from an underwater position was carried out.

Since the late 50s, the process of introducing ballistic missiles on submarines began. First, a small-missile nuclear submarine was created (the dimensions of the first domestic liquid-fueled naval ballistic missiles did not allow the creation of a multi-missile nuclear submarine at once). The first domestic nuclear submarine with three ballistic missiles launching from the surface was put into operation in 1960 (by this time several domestic submarines with ballistic missiles had been built).

In the United States, based on the successes achieved in the field of naval ballistic missiles, they immediately went to create a multi-missile nuclear submarine with support for launching missiles from an underwater position. This was facilitated by the Polaris program for creating solid fuel ballistic missiles, successfully implemented in those years. Moreover, to shorten the construction period of the first missile carrier, the hull of a serial nuclear submarine, which was under construction at that time, was used

Rice. 9. George Washington-class nuclear-powered missile submarine

In the years following the creation of the first submarines, there was a continuous improvement of this new type of naval weapons: an increase in the flight range of naval ballistic missiles to intercontinental, an increase in the rate of fire of missiles up to salvo, the adoption of ballistic missiles with multiple warheads (MIRVs) containing consisting of several warheads, each of which can be aimed at its own target, increasing the ammunition load of missiles on some types of missile carriers to 20-24.

Table 2

At the end of the 60s, the USSR created nuclear submarines of a fundamentally new type - multi-missile submarines - carriers of missile launchers with underwater launch. The appearance and subsequent development of these nuclear submarines, which had no analogues in foreign navies, was a real counterweight to the most powerful surface combatants - attack aircraft carriers, including those with nuclear power plants.

Rice. 10. Nuclear submarine missile carrier (project 667A)

Due to the characteristics of the environment in which submarines operate, the determining factors in the problem of stealth and detection are the noise reduction of submarines and the range of the hydroacoustic equipment installed on them. It was the improvement of these qualities that most strongly influenced the formation of the technical appearance that modern nuclear submarines acquired.

In the interests of solving problems arising in these areas, many countries have launched research and development programs of unprecedented scope, including the development of new low-noise mechanisms and propulsors, carrying out special programs testing of serial nuclear submarines, re-equipment of built nuclear submarines with the introduction of new ones technical solutions and finally, the creation of nuclear submarines with power plants of a fundamentally new type. The latter includes, in particular, the American nuclear submarine Tillibee, commissioned in 1960. This nuclear submarine was distinguished by a set of measures aimed at reducing noise and increasing the efficiency of sonar weapons. Instead of the main steam turbine with a gearbox, used as an engine on nuclear submarines being serially built at that time, the Tullibee was implemented with a full electric propulsion scheme - a special propeller electric motor and turbogenerators of appropriate power were installed. In addition, for the first time a hydroacoustic complex with a spherical bow antenna of increased dimensions was used for a nuclear submarine, and in connection with this new scheme placement of torpedo tubes: closer to the middle of the length of the submarine and at an angle of 10-12° to its center plane.

When designing the Tillibee, it was planned that it would become the lead in a series of new type of nuclear submarines, specifically designed for anti-submarine operations. However, these intentions were not realized, although many of those applied and worked out on it technical means and solutions (hydroacoustic complex, layout of torpedo tubes, etc.) were immediately extended to the Thresher-class serial nuclear submarines being built in the 60s.

Following the Tillibee, two more experimental nuclear submarines were built to test new technical solutions to increase acoustic stealth: in 1967, the Jack nuclear submarine with a gearless (direct-acting) turbine installation and coaxial propellers in the opposite direction of rotation (like those used on torpedoes) and in 1969, the Narwhal nuclear submarine, equipped with a new type of nuclear reactor with an increased level of natural circulation of the primary coolant. This reactor was expected to have a reduced level of noise emissions due to a reduction in the power of the primary circuit circulation pumps. The first of these solutions was not developed, but as for the new type of reactor, the results obtained were used in the development of reactors for serial nuclear submarines in subsequent years of construction.

In the 70s, American specialists again returned to the idea of ​​​​using full electric propulsion on nuclear submarines. In 1974, the construction of the Glenard P. Lipscomb nuclear submarine with a turboelectric power plant consisting of turbogenerators and electric motors was completed. However, this nuclear submarine was not accepted for mass production. The characteristics of the nuclear submarines "Tillibee" and "Glenard P. Lipscomb" are given in table. 3.

The refusal to “replicate” nuclear submarines with full electric propulsion suggests that the gain in noise reduction, even if it occurred on nuclear submarines of this type, did not compensate for the deterioration of other characteristics associated with the introduction of electric propulsion, primarily due to the impossibility of creating electric motors of the required power and acceptable dimensions and, as a consequence, a decrease in the speed of full underwater travel compared to nuclear submarines with turbo-drive units that were built at a similar time.

Table 3

The world practice of submarine shipbuilding so far knows only one exception, when the full electric propulsion scheme was implemented not on one prototype, but on several serial nuclear submarines. These are six French nuclear submarines of the Rubis and Amethyste type, commissioned in 1983-1993.

The problem of acoustic stealth of nuclear submarines did not simultaneously become dominant in all countries. Another important area for improving nuclear submarines in the 60s was considered to be achieving the highest possible underwater speed. Since the possibilities of reducing the resistance of water to movement by optimizing the shape of the hull had been largely exhausted by this time, and other fundamentally new solutions to this problem are real practical results were not given, to increase the underwater speed of nuclear submarines, there was only one way left - increasing their power supply (measured by the ratio of the power used to move the installation to the displacement). At first, this problem was solved directly, i.e. through the creation and use of nuclear power plants of significantly increased power. Later, already in the 70s, designers took the path of simultaneously, but not so significantly, increasing the power of nuclear power plants and reducing the displacement of nuclear submarines, in particular by sharply increasing the level of control automation and reducing the crew size in this regard.

The practical implementation of these directions led to the creation in the USSR of several nuclear submarines with a speed of over 40 knots, i.e., significantly higher than that of the bulk of nuclear submarines being simultaneously built both in the USSR and in the West. The record for full submerged speed - almost 45 knots - was achieved in 1969 during testing of the domestic nuclear submarine with the Project 661 cruise missile.

Another characteristic feature of the development of nuclear submarines is a more or less monotonous increase in immersion depth over time. Over the years since the commissioning of the first nuclear submarines, the immersion depth, as can be seen from the data below for serial nuclear submarines of the last years of construction, has more than doubled. Of the combat nuclear submarines, the domestic experimental nuclear submarine Komsomolets, built in the mid-80s, had the greatest diving depth (about 1000 m). As you know, the nuclear submarine was destroyed by fire in April 1989, but the experience gained during its design, construction and operation is invaluable.

By the mid-70s, subclasses of nuclear submarines gradually emerged and stabilized for some time, differing in the purpose and composition of the main strike weapons:
- multi-purpose submarines with torpedo weapons, anti-submarine missiles, and later cruise missiles fired from torpedo tubes and special launchers, designed for anti-submarine operations, destruction of surface targets, as well as for solving other traditional submarine tasks (mine laying, reconnaissance, etc. );
- strategic missile submarines armed with ballistic missiles to destroy targets on enemy territory;
- submarines carrying cruise missiles, designed mainly to destroy surface ships and transports.

Abbreviated designation for submarines of these subclasses: nuclear submarines, SSBNs, SSGNs (respectively English abbreviations: SSN, SSBN, SSGN).

The above classification, like any other, is conditional. For example, with the installation of silos for launching cruise missiles on multi-purpose nuclear submarines, the differences between nuclear submarines and specialized SSGNs are largely erased, and the use of cruise missiles with nuclear submarines, intended for firing at coastal targets and carrying nuclear warheads, transfers such submarines to the category of strategic ones. In the Navy and Navy different countries As a rule, their own classification of ships is used, including nuclear submarines.

The construction of combat submarines is carried out, as a rule, in series of several (sometimes several dozen) submarines each based on one basic design, to which, as experience in the construction and operation of submarines accumulates, relatively insignificant changes are made. For example in table. 4 shows data on the serial construction of nuclear submarines in the USA. The series, as is usually customary, are named accordingly to the head

Table 4

The level of development of ALL reached by the mid-90s is characterized by those given in table. 5 data for three American nuclear submarines in recent years of construction.

Table 5

In relation to nuclear submarines (sometimes also to nuclear submarines), the rather conventional but widespread concept of “generation” is used. The signs by which nuclear submarines are classified as belonging to a particular generation are: proximity in time of creation, commonality of technical solutions incorporated in the projects, the same type of power plants and other equipment for general ship purposes, the same hull material, etc. One generation can be classified as nuclear submarines for various purposes and even several successive series. The transition from one series of submarines to another, and even more so the transition from generation to generation, is preceded by comprehensive research in order to justify the choice of optimal combinations of the main tactical and technical characteristics of new nuclear submarines.

Rice. 11. The newest Russian multi-purpose nuclear submarine of the Bars type (project 971)

As a rule, these studies are not limited only to the design of nuclear submarine variants, but also include entire programs of research and development work in hydrodynamics, strength, hydroacoustics and other areas, and in some cases, discussed above, also the creation of special experimental nuclear submarines.

In countries that build nuclear submarines most intensively, three or four generations of these ships have been created. For example, in the United States, among multi-purpose nuclear submarines, generation 1 usually includes nuclear submarines of the “Skate” and “Skipjack” types, generation 2 - “Thresher” and “Sturgeon”, generation 3 - “LosAngeles”. The Seawolf nuclear submarine is considered as a representative of a new, fourth generation of US Navy nuclear submarines. Among the missile carriers, the first generation includes the boats “George Washington” and “Ethan Allen”, the second - “Lafayette” and “Benjamin Franklin”, the third - “Ohio”.

Rice. 12. Modern Russian nuclear submarine missile carrier "Akula" type (project 941)

Table 6

According to the forecast, the total number of nuclear submarines that will be in service in 2000 will be (excluding nuclear submarines of the Russian Navy) about 130, of which about 30 are SSBNs.

The stealthiness of nuclear submarines and almost complete independence from weather conditions makes them an effective means for conducting various kinds of special reconnaissance and sabotage operations. Typically, submarines are used for these purposes after completing their service for their intended purpose. For example, the previously mentioned US Navy nuclear submarine Halibut, which was built as a carrier of Regulus cruise missiles, was converted in the mid-60s to search (using special devices it carried) for objects lying on the ground, including sunken submarines . Later, to replace it for similar operations, the torpedo nuclear submarine of the US Navy "Parche" (Sturgeon type) was converted into the hull of which a section about 30 m long was cut into and a special underwater vehicle was received on the deck. The nuclear submarine became notorious for participating in a spy operation in the Sea of ​​Okhotsk in the 80s. Installed on a submarine cable special device, she, according to data published in the United States, provided wiretapping of communications between the Soviet naval base in Kamchatka and the mainland.

Rice. 13. The newest American nuclear submarine “Seawolf”

Over the forty-odd years of the nuclear submarine’s existence, as a result of accidents (fires, explosions, depressurization of sea water lines, etc.), two nuclear submarines of the US Navy and four nuclear submarines of the USSR Navy sank, one of which sank twice in places with relatively shallow depths and was raised both times means of the emergency rescue service. The remaining sunken nuclear submarines have serious damage or almost completely destroyed and lie at depths of one and a half kilometers or more.

There was one case of combat use of a nuclear submarine against a surface ship: the nuclear submarine Conqueror of the British Navy during the conflict over the Falkland Islands in May 1982 attacked and sank the Argentine-owned cruiser G.Belgrano with torpedoes. Since 1991, American Los Angeles-class nuclear submarines have launched Tomahawk cruise missile attacks on targets in Iraq several times. In 1999, attacks with these missiles on the territory of Yugoslavia were carried out from the English nuclear submarine Splendid.

(1) This shape, characteristic of diesel-electric submarines, ensured satisfactory performance while on the surface.

(2) Previously, if a submarine had a strong deckhouse protruding beyond the hull, it was called a deckhouse fencing.

(3) It should be noted that at different times the US Navy intended to create submarines with cruise missiles, but each time preference was given to multi-purpose submarines.

(4) Previously, nuclear submarines used a set of sonar systems for various purposes.

(5) For construction, the design of serial nuclear submarines of the “Thresher” type was used and officially the nuclear submarine was considered the seventh ship of the series.

(6) Two electric motors with an estimated power of 11,000 hp were used. With. each placed one after the other.

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What can smart watches do? Why are they so popular? These questions are asked by buyers who are getting acquainted with Smart Watch. Usually after a few days active use ambiguities pass by themselves, because iWatch functionality even surprises experienced users.

• both directly using the watch (it is equipped with a microphone and speaker);
• and redirect it to the iPhone.

Taptic Engine - a feature in the Apple Watch

One of the main advantages of smart watches. The device seems to touch your hand when a new alert arrives. Moreover, the notification different applications is felt by a person in different ways: you can easily distinguish an SMS message from a navigator’s instructions.
Photo: Taptic Engine in Apple Watch It is convenient to use this function as an alarm clock. You and your loved ones will no longer have to jump out of bed from the annoying ringing of the clock.

Send heartbeat to other watches

Romantic feature from Apple. To send, you need to press two fingers on the watch screen. At this time, the heart monitor will record your heartbeat, which you can send to other iWatch watches.

Transfer touches to other iWatch

Allows you to send light taps to your friends and loved ones as a sign that you are remembering them.

Fitness tracker

If you are an athlete or a fan healthy image life, smart watches will become a convenient assistant in analyzing and adjusting your daily routine. They use heart rate as the main indicator: the device has optical sensor, which works no worse than panels on treadmills. Fitness tracker in iWatch Thus, the Activity application daily calculates several parameters and displays them in the form of three colored circles:

1. General activity.
2. High activity (with increased heart rate).
3. Time spent on your feet (helps you remember to take time away from your desk).

And the Workout app counts calories burned and distance traveled during the workout.
Workout app smart watch And this is not all that the device can do; it is also included in its “stuffing”.

In a box with Apple Watch Series 3 we found a stingy gentleman's set: an induction charging tablet, a 1 A plug, a silicone strap with one additional clasp of a different length and documentation.

Modifications

Apple Watch Series 3 with eSIM support, as well as Hermès and Edition modifications, unfortunately, are not presented in Russia. This means that we don’t sell variations with sapphire glass, steel or ceramic cases either.

What you can choose: one of two sizes (38 mm and 42 mm), one of four colors silicone strap (smoky, pink, gray and black), depending on which one of three colors will be offered aluminum body(silver, gold and “space gray”).

There is also a modification of Nike+ for athletes and fans of the brand of the same name - with thematic design of dials and special mesh straps.

There is no difference in specifications depending on size. The difference in price is small - relative to the cost of the watch itself. Therefore, here you should be guided only by personal preferences. I have an Apple Watch with a case length of 38 mm, and I really like it, I don’t feel disadvantaged, I don’t want a “full-length” version.

Frame

The only controversial point is the choice of a specific Apple models Watch. On at the moment Models of the first and third series are officially sold. If you need a remote control for iOS devices, an activity tracker and a workout recorder, the Apple Watch Series 1 is enough. If it is waterproof and tracks swim laps in the pool, listens to music without a smartphone and has hardware reserves for the future, it is better to choose the Apple Watch Series 3.

New Apple series Watch Series 3 with cellular connectivity. The good news is that watchOS 4, operating Apple system Smartwatch is one of the most comprehensive on the market. This results in a steep learning curve, but there is a lot of room for customization. And things will only get better when WatchOS 5 is unveiled, likely at WWDC 2018 in June. We have combined 20 essential useful things, such as Tips and Apple tricks Watch to make your smartwatch even more personal, including improvements made in watchOS 4 and subsequent updates. From adding music to trimming unwanted notifications and even taking screenshots.

Apple Watch Tips and Tricks: Organize and use your Apple App Dock.

I picked an apple large number users are enjoying using watchOS 3, and you can now view all your open apps by pressing the side button. You should make full use of this dock, stacking it with your most popular apps. For what? Because these are the apps that your watch will prioritize when updating information and background.
You can customize the dock in the companion view app. It can be set to use the most recent apps you've used, a bit like multitasking on an iPhone. Or you can turn it into a proper dock with your favorite apps.
If you choose the latter, you can easily customize which apps you want there and they will appear in the list. If you want to set up a dock on your watch, you can do so by tapping the side button, then 3D touching the app and tapping " Keep in Dock».

No. 2. Track your sleep.

Apple doesn't offer its own built-in sleep tracking, which means it can't quite match Fitbit, Garmin, and others that offer full safety control right out of the box. But fortunately, there are many applications that can bring Watch function. We have chosen best apps sleep tracker for Apple Watch, so you don't have to search the App Store for it.

No. 3. See time discreetly.

If you want to check the time without lifting your wrist, you can slowly flip the Digital Crown up and it will gradually light up the screen so you can see inside rather than completely lighting up the watch screen. Sorry original Apple Watch Series 1 owners, this one won't work for you.

No. 4. Control music playback.

If you updated to watchOS 4.3, you can control music playback on your Apple HomePod and iPhone right from your Watch. Certainly, iPhone users might have briefly done this after first launching watchOS 4, although it was quickly removed after streaming music was added to smartwatches via watchOS 4.1.
However, many users with control and HomePod launch can now select tunes, change the volume, and skip everything with their hands.

No. 5. Changing the sound volume in AirPods.

If you want to change the volume on AirPods without taking out your iPhone, you have to ask Siri. Hidden to say the least, but if you have an Apple Watch, you're in luck.
When you play music on a Watch running watchOS 4 or later, whether it's your iPhone or Watch, you can glance at the watch to see what the “ Now Playing" All you have to do is rotate the Digital Crown to raise and lower the volume.

No. 6. Take a screenshot.

All Apple watches can take screenshots when you hold down the Digital Crown and the action button underneath it at the same time. The images are then saved to your camera frame on your iPhone. However, this value is not set by default. To enable screenshots, go to the Watch companion app, then go to the " General" There you can enable or disable the inclusion of screenshots.

One of the things Apple is really pushing with using Apple Watch are bracelets. There are new bracelets released every couple of months, with new colors to suit the season and your wardrobe. That's why we recommend taking a look at what's out there and taking advantage of the customization options. And if you don't want to pour cash into Apple bank, there are always third-party options. However, be warned that they may not correspond.

No. 8. Unlock your watch from your iPhone.

If you haven't done this in the process initial setup, you can still unlock your Apple Watch and iPhone at the same time without having to take away your passcode (if you set up one of them). To do this, go to the Watch companion app, where you can enable or disable the " Unlock from iPhone».

No. 9. Turn on elevated heart rate notifications.

Apple is taking heart health more seriously, and one of the new features - as well as heart rate - is a notification when your heart rate is higher than it should be.
You can enable it in the heart rate section of the companion app. When you enable it, you will be asked to choose a threshold between 100bpm and 150bpm. Your Apple Watch will only alert you when you pass the threshold and appear to be inactive for about 10 minutes. Additionally, it will look for signs that your elevated heart rate is a more long-term problem, rather than a temporary upheaval caused by something terrible - like a horror movie.

No. 10. Connect your workouts.

Are you an athlete? The Apple Watch has let you down so far, but things have gotten better, and in watchOS 4 you can now combine workouts, meaning less time rubbing those sweaty fingers around the screen. If you want to move from one workout type to another, instead of stopping the current one, swipe right and tap the + button to add a new one.

No. 11. Unlock your Mac using your watch.

If you're fully equipped with all your Apple devices, you can also use your Apple Watch to skip the password on your Mac to gain access if you have a 2013 or newer iMac running macOS Sierra 10.12 or later. If you want to combine these two, the first thing you need is to make sure they both go into one account iCloud. The next step is to switch to Mac (make sure it's running with using macOS Sierra or more later version) and select " System Settings", then select " Security and privacy" and go to the tab " General" Here you will be able to install Apple Watch to unlock your Mac. Make sure two-factor authentication enabled on your Mac as well (from chapter to System Preferences > iCloud > Account Information > Security).

No. 12. Joint event - notification by call.

Apple's answer to Fitbit, Garmin and the rest of the fitness tracker fraternity is the activity platform. This is where all your daily movements are recorded. In its latest iteration, you can now share your activity with other Apple Watch users. To do this you need to add friends, which you need to do by going to the special Activity app on your iPhone. Then you can select " Sharing" and click the icon " + » in the corner to add contacts.
Back on Apple Watch, go to the app Activity" and swipe your finger across the screen to the right to see your friends' activity data. You can also comment on the workouts to motivate them or joke about their results. Either way, this is your call.

No. 13. Enable automatic pause when traffic stops.

As on Samsung Gear S3, Apple also allows you to stop tracking your work when interrupted or stopped at a traffic light. Now you can enable automatic start in pause mode, simply head to the Apple Watch app on your iPhone, head to the My Watch section, and then select Workout. Here you will be able to switch to “Start Auto Pause”.

No. 14. Checking data usage.

If you have the Apple Watch 3 series with LTE, you can monitor your data usage. You never know, something will tip you off about your monthly plan. Alternatively, it's just to see how little Apple data Watch really uses.
You'll need to head to the companion app, looking at the cellular menu option to see the information. However, once you do this, you will know how much data you have used in the current period and which applications are using this data.

The Apple Watch has a decent place to put apps, emails and music. If you want to see how much storage you need, go to the Apple Watch companion app, go to the " General" and then select " Usage" Here you can get a breakdown of how many apps are taking up space on your watch.

No. 16. Change the action on the watch.

This tip came from a complaint about a golf app developer who constantly needed to re-open the app while playing.
In the Apple Watch settings menu, turn on wrist lock. Below you will find several options in the " Screen show" Show latest application“. You can choose to show the latest app while gaming, within two minutes of last use, within one hour of last use, or always. Now when you lift your wrist, you will see the last app you used.
You can also do this from the Apple Watch app on your iPhone. Just go to General and then Wake Screen, you will have the same options to choose from.

If you are constantly squinting at your watch wrist to read notifications on your smart phone Apple watch Watch, you can change the text size to make it easier for you to see. Just go to " Settings»> « Brightness and text size", then adjust the text size to whatever suits your needs.

Starting with Series 2, Apple Watch is waterproof and includes a blowout mode to get rid of water lurking after you go for a swim. If you want to manually use this feature, swipe up from the Home screen to view the Apple Watch Control Center. Find the water drop icon and click on it.
You will then be asked to turn the digital crown over to remove the water. It's actually a good idea to press the droplet button before you get into the shower or pool (but don't worry if you forget) since it also locks the screen, preventing the screen from confusing the water droplets with your own touches.

Apple Watch Tips and Tricks #19. Ping iPhone will help you find your phone.

It's a good thing you have your Apple Watch because it can help you find your phone in a pinch. Swipe up to open Control Center, look for the " Ping iPhone" and click to reunite with your iPhone. If you press and hold the " Ping iPhone", your iPhone's LED flash will blink, giving you a visual view of the phone in case the speaker is too muted.

Apple Watch Tips and Tricks #20. Use images as wallpaper on the default viewing screen.

By default, Apple Watch selects images from the " Favorites" on your iPhone - something we hadn't thought of using before. So go ahead and tag some images in iOS using the heart button at the bottom.
When you use face to view a photo album, it will randomly select photos from the folder. You can touch the display to view images. Alternatively, with watchOS 4 you can now turn those photos into kaleidoscope tripps.
On your iPhone you should now see an option " Create Watch Face» in the action menu on any photo. This will allow you to stick the image onto your watch either as is or in a kaleidoscope shape.