1. How to do the compass

Tool materials: back -shaped needles, waste bottle caps, pliers, powerful magnets (can be disassembled from waste speakers), glue, scissors, signs.

Production steps:

1. Use pliers to pull a normal stationery back and cut it straight, cut off the appropriate length.

2. Place the pull -up needle on one pole of the magnet and rub more than 20 times along the same direction. Be careful, don't let the pinpoint tip start.The easiest way to check whether the magnetic needle is done well is to put it next to another finished compass to check whether the guideline pointer pointer is deflected because the magnetic needle is approaching.

3. Use a marker pen to blame one end of the magnetized pointer. Put 2 small holes on the side of the beverage bottle cap, and insert the magnetic pointer into the hole cover.

4. Use glue to stick the pointer on the bottle cap, and a simple version of the water -watering compass is ready.

When using this DIY compass, you only need to put it on the static water surface and be attracted by the Earth's magnetic pole. The compass will slowly turn the water on the water until you point you the right north and south direction.

Second, simple guideline needle handmade method

1. Take a sewing needle, magnetize it with a magnet, and then tie it to the middle of the needle with a cotton thread to hang it on a bracket to become a compass.

2. Floating compass: Take a magnetized steel needle, pass through a small cork in the horizontal direction, and place it in a ceramic bowl with water, which is a floating compass.

3. We can also make a simpler direction to distinguish: the method of determining the direction with a watch is very simple, divide the time you are in 2, then find the corresponding position of the quotient on the dial, and then align this number to accurate it.The direction of the "12" point on the dial is the north.For example, at 10 am, 2 in the morning, 2, and 5.Met the "5" on the dial at the sun, and the direction of "12" is the north.But remember that if in the afternoon, it should be calculated at 24 hours. If 4 pm, it should be calculated at 16 o'clock.Once the north is determined, other directions are clear at a glance. This method is no less than the accuracy of the compass.

How to lay a man -made lawn

1Construction diagram area

First, the area of the lawn is good, and it is priced at per inch.It is best to make a detailed construction area. The same area, the placing is on the drawings, and the algorithms of the corners may be different. With the construction map area, it will be more accurate.

2The color of the lawn

The lawn is green, and the green lawn is also very different, with light green and dark green.And how long the green is used up, the color will become lighter. These must be taken into account the budget. You ca nt change it before it. It is a waste of money.

3The model of the lawn

Then determine the model of the lawn, the model of green grass is very thin and thick.Green grass is vertical, tilted, and so on.Do not order individual preferences, and choose the model according to the actual needs of the lawn.

4The quality of the lawn

The quality of the lawn is the key. It is said that the lawn always falls off and stained on the clothes. It is because the quality of the lawn is not good. The inferior lawn rolled on it and will occur.

5, Acceptance of all accessories

There are also glue and glue of sticky lawn, waiting for some auxiliary materials tools.After everything is ready, the most detailed acceptance work is needed to ensure that each link, each rot is a quality pass, and is flawless, because the lawn rework is a big project and must be meticulous.

6, Start paving the lawn

The best procedure is to start the lawn. Do not spread it, according to the construction drawings, follow the order, first follow oneThe corners of the side began, rolling along.Do not use the paved lawns immediately, wait for it to be completely sticky.In the later period, you should always ask professionals to take care of it.

How to fix the fake lawn to the wall

12. Auxiliary tools that need to be prepared before installation: long ruler, wallpaper knife, artificial garries special glue, brush, rubber hammer, dragon Bone stand, electric diamond, nail, etc.

2Before the construction connection process of artificial lawns, you need to clean the ground or wall of the Artificial lawn to keep the surface dry and water without moisture.5Above C or above is the most suitable for Artificial lawn construction; the lawn stall is openedtwenty fourIn hour, the release of the lawn tension makes the lawn paving effect without wrinkles and more beautiful.

3Fix the dragon Bone stand on the wall first.Draw a small circle with the wall with the wall with a brush in a place where you need nails. Use an electric drill drilling hole to nail on the small circle to fix the dragon skeleton firmly on the wall.

4According to the height of the wall, the lawn is cut into the required size with a wallpaper knife, nails on the dragon skeleton with nails, and brushes the corner of the lawn to avoid cracking.The drying time should be controlled during the brushing process of the Artificial lawn.Generally after applying glue10-30Within minutes, the glue reaches 80 % of the dry, and it is advisable to touch it.The Artificial lawn is required to be aimed at one -time adhesion when the construction bonding. Do not move the adhesive object after the bonding.

5The solidification of the specific construction process of artificial lawns: during the construction of artificial lawns, the curing time is generally three days, and the final strength of the test is generally ten days.Pay attention to the maintenance of Artificial lawn during the construction of Artificial lawn construction, and avoid water immersion and movement by artificial lawns, so that Artificial lawn bonding the best state.

Different from other installations during the installation of the Artificial lawn wall is to support the keel stand. This is also the most important link in the wall installation. Only in this way can we fix the lawn more reliable.

1. Is the Sunscreen mask a IQ tax?

In the arrival of summer, the sun began to bake people. Sun protection has become an indispensable job for people. It does not hurt people's sunscreen, sunscreen, and sunshade.Some people say that the Sunscreen mask is an IQ tax, so is the Sunscreen mask the IQ tax?

Sunscreen masks are not IQ taxes.Because Sunscreen masks are a product with certain scientific interpretation and functions.Because ultraviolet rays are important factors that cause Skin sunburn, Skin cancer, and other health problems, using sunscreen products can reduce damage to the Skin.At the same time, masks can also effectively prevent the spread of viruses and other microorganisms and protect our health.Therefore, if it is a reliable Sunscreen mask, it is not an IQ tax.

2. What is the principle of Sunscreen mask

The principle of long Sunscreen mask: The outer layer uses special ultraviolet fabrics, which improves the ability of the fabric's own UV reflection and absorption, which can reflect and absorb high -energy ultraviolet rays.It becomes an electromagnetic wave with low energy or short wavelengths, thereby reducing the strength of the sun and eliminating the harm of ultraviolet rays to the human body.

Light aging caused by ultraviolet rays is the main cause of Skin aging.Doing Sun protection in the strong summer of ultraviolet rays is an important means to keep the Skin healthy.Ultraviolet rays of sunscreen are UVA and UVB.UVA has a strong penetration and can penetrate deeper dermis, stimulating increased melanin, resulting in dark Skin, and color spots and wrinkles -anti -UVA is sunscreen black.High UVB energy can cause Skin redness and sunburn, and problems such as erythema, blisters, pain and other problems -anti -UVB is sunscreen.

What are the differences between ice and small shoes and flower skates and speed skates

There are four major ice movements on the Olympics. Except for curling, you do nt need to wear ice shoe shoes. Ice hockey, patterned skating, and speed skating must wear special ice shoes. There are certain differences in these three types of ice shoes.The differences between icehouse shoes and pattern skating shoes and speed skating knife shoes are mainly:

1. The difference between ice knife

(1) In the exercise of the ice hockey, the speed requires the speed, and there is an emergency stop turning.harm.

(2) The ice knife of the pattern skating shoes is longer than the ice hockey shoes of the same size. In the figure skating, some movements need to be placed on the heel, and other actions need to be balanced on the toes.The ice shoe cutting closer to the toe is jagged, and it is another key part of the design of the ice shoes.These only appear on pattern skating shoes, for jumping and rotating.

(3) The importance of the sport of speed skating lies in speed.To achieve this, every step athletes put pressure on ice to promote the promotion of ice.Therefore, the longer the blade, the higher the stability, and the sharpness and length of the speed skate shoes are the highest among the three movements.

2. Material difference

(1) Ice knife material:The material of speed skates and pattern skating shoes is generally made of stainless steel. Most of the ice knife of ice and petal shoes is also made of stainless steel, but some are made of carbon fiber, which will reduce its weight.

(2) Boot material:Ice hockey players need to be durable and comfortable ice shoes to fight ice hockey. The ice shoes are made of leather and plastic. The boots are narrow and deep. They can move quickly. There are fillings in front of the boots to prevent it from playing.The ice knife is welded on the boots and cannot be replaced.The pattern skating boots are usually made of inner leather and there is no pad. There is also a wooden sole on the inside of the boots, which is used for support. There is a small heel on the outside. It is also lighter, thinner and shorter.Because the toes are used for balance, the front end of the boots will be wider.The design of this ice shoes is not for comfort or speed, but to precise and exercise. The ice shoe blade is installed directly on the boots. After leaving the ice, you can remove the blade.The speed skating Ice knife shoes are sewn with high -quality thick cowhide, which are half -high waist and thin shape. The heels are hard, with the heels and fixed heels. The sole is the hard Skin. The ice knife is fixed on the soles with screws or rivets.

3. Differential protection measures

Ice hockey shoes have ankle protection, the ice knife is relatively high, the blade is thick, easy to stand and run, there is a groove in the middle of the ice hockey knife, the distance between the knife and the sole;The protective cover is to prevent the ice knife from being blunt or stained with dust impurities on the ground. When the players do not wear ice shoes, they use a soft cover to protect the ice knife.

The above three points are the main differences between the three kinds of ice shoes. The difference between icehouse shoes and pattern skating shoes, the difference between ice and pethero shoes and speed skates is still relatively large. Be careful not to confuse it.

1. Whether the ski resort provides Ski shoes leasing services

In most cases, ski resort provides leasing services for Ski shoes.This is to meet the needs of beginners and people who do not often Ski, so that more people have the opportunity to enjoy the fun of skiing.The price of Ski shoes is generally between 50 yuan and 100 yuan (the price comes from the Internet, for reference only), and the price will also be affected by factors such as different brands and performance.

2. What should I pay attention to when renting Ski shoes

1. Choose Ski shoes that are suitable for you.There will be a variety of brands and models to choose from in the lease counter of the ski resort. Different brands and models of Ski shoes will be different. When leasing, you must consult the lease staff and choose Ski shoes that suits them.

2. Ensure clean and hygiene of Ski shoes.When the ski resort provides a Ski -shoe lease service for customers, the Ski shoes generally will be cleaned and disinfected. However, before leasing, it is recommended to check the cleaning and hygiene of Ski shoes to ensure safety and hygiene.

3. Keep the good performance of Ski shoes.During skiing, the use of Ski shoes will affect the gliding process.In order to ensure the safety of your own taxi, you must always pay attention to the performance of the Ski shoes, and find it in time to replace or report it to the staff in time.

3. Is it necessary for Ski shoes to buy it by yourself?

Whether you need to buy Ski shoes yourself depends on the specific situation and needs of your own.If you often Ski and hope to have a better experience and comfort in the process of skiing, it is recommended to buy Ski shoes yourself.In this way, you can choose the snow shoes that are most suitable for you according to your own foot type and needs, so as to better control the skiing and skiing skills.

If you are just skiing or just trying this sport, you can consider renting Ski shoes.This can save a cost, and at the same time, it can avoid the aging or damage to snow shoes due to long -term storage.If you have a special foot type or needs, such as a special insole or a bow support, it is best to buy skiing and snow shoes yourself to ensure that your feet are correctly supported and protected.

In short, buying Ski shoes can provide better comfort and control, but you need to make decisions based on your actual situation.If you are not sure how to choose, you can consult a professional Ski coach or store employee to get better suggestions and guidance.