1. What are the differences between night vision glasses and Polarized glasses

1. Different principles

The polarizing mirror is made according to the polarization principle of the light, and the unnecessary light is scattered, such as strong sunlight.

Night vision mirrors are based on the auxiliary observation tools made by the night vision technology at the same time. The night vision technology includes two aspects: micro -light night vision and infrared night vision.

2. Different effects

The special effect of polarizing mirror is to effectively exclude and filter the scattered light in the beam, so that the light can put the eye visual image into the eye transmittance shaft, making the field of view clear and natural.

Micro -light night vision mirrors make the weak light large, so that it shows a clear picture in the sight, so when there is no light at all, the microcomioxid night vision mirror cannot be seen; the active infrared night vision mirror is inIn any case, you can see things. If there is no infrared source, passive infrared night vision mirrors cannot see things.

3. Different use of usage

Polaries can be used when driving, fishing, skiing, rain, etc. are used in strong reflection or strong light.

Night vision mirrors are usually used at night, and they are widely used in the fields of transportation, military and other fields.

2. How to choose night vision glasses

1. Material of the lens

The material of the lens affects the effect of protecting the eyes. You should choose the driving mirror made of polarized lenses. This can effectively reduce the dazzling Lights and the light of the Lights.The strong light becomes soft, and the vision is clearer, which also guarantees the safety of the driver's friends and relieves the fatigue of the eyes.If possible, let the salesperson darkens the light when buying, and feel the softness and clarity of the Lights after wearing the product.

2. The radian of glasses

The comfort of polarizing driver mirrors depends on the arc of glasses.Westerners' nose bridges are generally tall, and the contours of the bridge of our Orientals are round. Therefore, when choosing, you can try it. After wearing it, you can feel that it is easy to drop and hold the nose. It is most important to choose the glasses suitable for us.

3. The nose of glasses

When the driver friends buy the night vision mirror, they should choose the kind of soft and elastic nose. In this way, it will not make the nose of our major drivers feel uncomfortable.

4. Observe the mirror leg

The flexibility of the driver's mirror legs is also very important. Check out whether the mirror legs are flexible and whether the size can be adjusted to meet the needs of different drivers and friends. Flexible mirror legs will be easier to adjust and make drivers feel more comfortable.

5. Framework material

You should choose a driving mirror of the alloy material. The glasses made of this material are very light, the weight is not heavy, and it is strong. The ears will not be uncomfortable because of wearing glasses for a long time.

6. The thickness of the lens

The thickness of the driver's lens lens affects the use of glasses to a certain extent. Choosing glasses with thicker lenses can be more durable to prevent the glasses from being stimulated and unexpectedly crushed, effectively protecting the eyes of drivers and friends.

1. Do you need to verify the gliding umbrella?

The gliding umbrella is a high -altitude movement with a certain danger. It is currently under the management of the China Aviation sports Association. There is a complete set of examination training specifications. There are specialized glide umbrella pilots certificates. So do you need to verify the glide umbrella?

Generally speaking, gliding umbrella flights are divided into two modes, one is the experience mode of professional coaches flying. This does not require my own research. The glide umbrella coach must have a relevant certificate; the other is a single flight mode.It is necessary to verify that after the special technical training is required, the certificate can be obtained after assessment.

Some friends do not intend to be a special coach to fly, but they just fly casually by themselves. They may think that it is not a big deal to take the test. However, it is generally recommended to take a certificate. OtherwiseNo relevant insurance.

2. How many Levels of gliding umbrella certificates are divided into Levels

Global umbrella Certificate, the full name is the gliding umbrella pilot level certificate, a total of five Levels:

1. Class A: Flying on the ground, the gliding umbrella flying on a hillside of not more than 100 meters. Students who complete the primary training course can get the "Grade A Certificate of Global umbrella Movement" issued by the Chinese Aviation sports Association.

2. Grade B: High glide, gliding umbrella at a sufficient height (more than 300 meters) and flying above a certain area, complete intermediate training courses and pass subject assessment, under the condition that the flight time and flight times can beApply for upgrade.

3. Class C: Dynamic gas currents soar, gliding umbrellas use the power of the hillside to rise to the air flow to make a short time flying.

4. Grade D: Hot air currents soaring, gliding umbrellas use the heat to rise to the air flow for air, which belongs to the medium and senior flight grade certificate.

5. E -Class: Long -distance flight, gliding umbrella using the upside off -road flight from the take -off point, requires the pilots to accumulate considerable flight experience and flight hours.flight.

3. What are the conditions for gliding umbrella test?

Global umbrella Pilot Certificate is divided into five Levels of ABCDE. The conditions for certificates of different Levels are also different:

1. Class A

(1) Over 16 years old, with culture above junior high school.

(2) Qualification certificate of the medical examination at the county level.

(3) Complete the theoretical teaching parts stipulated in the training outline.

(4) The flight time is not less than 5 flight days, and the number of flights is not less than 20 times.

2. Class B

(1) Have a Class A certificate.

(2) The flight time is not less than 20 flight days, and at least 40 flights.

3. C level

(1) Have a B -level certificate.

(2) The total number of flights is not less than 100 times, and the total time is not less than 20 hours.1 hour.

4. D level

(1) Have C -Class Certificate.

(2) The total flight time is more than 50 hours, and there are 3 times not less than 2 hours (there are record certificates in the official competition).

5. E -level

(1) Have a D -level certificate.

(2) There are at least 3 flights of more than 50 kilometers in different rising airflows (in the formal competition).

Global umbrella tests need to be taken in order, and at least half a year is needed for each level.

[Flower Ski] What are the techniques for skiing?

Brief introduction

Ski -skiing, one of the sports on the snow.With special snowboards, skiing movements of various technical performances in the taxi.Single items such as ballet, technique, and decrease in snow splitting.It prevailed in North America in the 1970s.At the beginning, simply using the inertia of slippery and decreased, trying to show a special trick -like skating performance; later, it slowly evolved various difficult air flip movements.Due to the low requirements of the venue and equipment, the popularity in recent years has risen straight.

Skill skiing tricks noun introduction

1. Ollie Dolphin jump

2. Back Side 180 Turn 180

Third, Front Side 180 External turn 180

Fourth, TAIL PRESS End Tail Balance

5. NOSE PRESS board head balance

6. Combo Trick combination fancy glide

BOX taxi skills part

1. 5050 is on the straight board to slide

Second, Backside Boardslide Sets on the horizontal board

3. Frontside Boardslide Inside the back to the horizontal board

Fourth, TAIL PRESS Tail Tail Balance Setting

5. NOSE PRESS board head balance gliding

6. Combo Trick combination fancy glide

AIR jumping platform

1. Straight Air straight line jump

2. Indy Grab Hands in the middle of the front blade

3. Mute Grab, grab the middle of the front blade

Fourth, melancholy grab to grab the back blade in front

5. TWEAK's front hand grabs the back blade of 90 degrees turn board

6. Nose grab in front of the board

7. Back Side 180 Turn 180

8. FRONT SIDE 180 External Transfer 180

Nine, Back Side 360 Turn 360

10. FRONT SIDE 360 external transfer 360

Eleven, BACK SIDE 540 Turn 540

The development of pattern skiing sports

Snow plates that can be freely slide forward with very short, forward and backward skiing projects such as skiing, rotation, jumping, and air turns can be done.In the early 1970s, North America began to popularize all kinds of skiing.In the early days, people only used the inertia of slippery and tried to perform single -foot balance, various cross -steps, single -footed rotation, and various jump rotation. Laterappreciate.Because this sport's requirements for venue equipment are not high, it is a very promising project.

Falling skiing project and rules introduction

Snow skills (Moguls)

It is a series of comparison techniques, air movements, and slippery speeds on steep slopes with a series of snow Bags, including single -person snow skills and double snow skills.Since 1992, the skills of men and women's singles are listed as the Winter Olympics project.

Aerials (Aerials)

It is a game with two different techniques jumping on the pre -prepared platform with the help of the inertia of steep slopes. In 1994, it was listed as the Winter Olympics project.

Ballet (Ballet)

It is a self -made program compared with technical actions such as taxi, pace, jumping, rotation, and air flipping with a certain slope with a certain slope.Essence

Pattern skiing equipment

Including skiing, skiing sticks, Ski boots, sportswear and gloves.Because the pattern skiing movements are relatively sharp and the impact is large, the skiing boards must be strong and durable.In addition to installing the desserter, the snow and air skills must also be installed with a stopper or a slide.The length of the Ski board can be determined according to the project, venue, technical level, and the technical characteristics of the athletes, but the rules stipulate that the shortest of the ballet ballet on the snow must not be as short as the athlete's personal height.180 cm (those who are less than 160 cm in height of men and women are allowed to shorten 10 cm).

[skiing points] Basic essentials of skiing make you change from rookie

1. Skywal Tent parameters introduction

As the Camping boom continues to heat up, as one of the three -piece set of Camping, it has become a must -have equipment for major Camping players.When buying the sky curtain, in addition to the various brands and the shape of Long Feifeng dance, there are also dazzling parameters. Next, I will introduce the parameters of the sky curtain Tent:

1. waterproof index: 1000mm-1500mm

2. Tent structure: single -layer account

3. Diameter of the bracket support rod: 10 mm

4. Number of tents to accommodate: 2 people

2. How to clean the sky

summer is a season that is very suitable for Camping, even if the rain keeps it, it is difficult to stop the mood of Luyou who wants to run out.The previous article has briefly introduced the relevant parameters of the sky curtain, but there is also an important problem. When the Camping is sunny, the Tent is soiled, or when it encounters the rainy season, the rain is opened by the rain during Camping.May face mold trouble.

So, when you encounter such weather, how can you solve the problem of cleaning the sky with step by step when your mood is very affected?

It is best to wash hand.Outdoor sky curtain uses the cleaning method of hand rubbing, uses non -alkaline detergent, can be scrubbed with cloth on the particularly dirty part. Do not use hard items such as brushes to scrub, which will damage waterproof coating and damage its waterproof properties.

The above is the introduction of the parameters of the sky curtain and how to clean the sky.

raincoat The difference from the rain piping

Rainy coat is a rainpost clothes made of waterproof fabric.The waterproof fabrics suitable for Raincoats include tape, oil cloth and plastic film.Modern raincoat waterproof fabric focuses on breathability, commonly used such as special nylon and GORE-TEX.The breathable raincoat is conducive to people scattered from the raincoat when wearing rain -resistant water and heat, increasing comfort.

Rainy clothing is a product extended from raincoat. It is a rainproof clothes made of waterproof fabric. It is open and has no sleeves.The waterproof fabrics applied to the rainy meseped include tape, oil cloth and plastic film.Modern rain-water waterproof fabric focuses on breathability, commonly used such as special nylon and GORE-TEX.The breathable rainfall is conducive to the humid and humid water when wearing rain -proof when it is wearing rain coats to increase comfort.

Simply put, the rain wear also belong to the raincoat. The rain wess is only a kind of raincoat, but it is just different styles.

Rainy flides are generally used by bicycles, such as electric vehicle rain, bicycle piping, and motorcycle rain. According to the style, it can also be divided into open rain pins, Sleeve rain pins, etc. The general production method of rainy floods is relatively simple, so the cost is relatively low., But the people used are widely used.

Nowadays, the style of raindrops is also diverse, but it is basically the protection of the head of the head. There are Raincoats, helmet -style Raincoats, and so on, so the rain wess is getting better and better.

Rainwear and rain ponchi is a must -have for rainy days. As the saying goes, there are unpredictable winds, so we must also be prepared. We don't have to think of buying rain pits in the rain when it rains.

Split in the cycling raincoat Good or one -sided raincoat

The conjoined raincoat is very good, but the disadvantage is heat and stuffy.

The split raincoat is not hot, and it is convenient to wear it, but waterproof is not as good as connecting.

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