A few days ago, German scientists carried out relevant measurement registrations on the speed of the champagne corks flying out.
Frederick Black of the University of Science and Technology in Clausenthal in Northwestern Germany found that after violent shaking of the champagne bottle, the pressure in the bottle reached 2.5 bar and 1 bar = 105 Pa. This pressure instantaneously ejects the stopper at a speed of 40 kilometers (24.8 miles) per hour.
In contrast, the internal pressure of a champagne bottle is approximately three times that of a passenger car.
According to the Swiss newspaper Le Matin, Black used a photoelectric acoustics device to measure the speed at which the stoppers were ejected.
German researchers also stated that, in theory, champagne stoppers can fly at a speed of 100 kilometers (62 miles) per hour. If you do not shake the champagne bottle, put it in the sun for a while before opening. When the pressure in the bottle reaches 3 bar, the speed of the stopper can reach 100 kilometers per hour.
1 bar corresponds to 1 kg of body pressure acting on 1 cm2 of pressure.
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In our bathroom there are always a lot of odds and ends. We are still very concerned about its storage. Because only good storage, our bathroom will have a good environment. But we should pay special attention to the material of the storage rack in the bathroom. Now let's learn about the material of the storage rack in the bathroom? In this way, we can choose better.
1. What are the materials of the storage rack in the bathroom
1. First, let's understand that the bathroom cabinet materials are divided into surface materials and base materials, both of which are very good materials. Common bathroom cabinet surface materials mainly include natural stone, artificial stone, glass, metal and solid wood. The base material is
The main body of the bathroom cabinet is made of chipboard, moisture-proof board, MDF, stainless steel, glass, rubber wood, multi-layer solid wood, PVC and other materials. Simply introduce the advantages of these bathroom cabinets
Inferiority.
2. PVC sheet with good moisture-proof effect. The biggest feature of PVC material is waterproof, which is suitable for bathroom use. It will not crack, and the price is relatively cheap. The disadvantage is that the hardness is not enough, easy
Deformation; And pvc is a kind of chemical substance, which will be harmful to human body for a long time.
3. It is a durable and solid stainless steel plate. The stainless steel basically solves the problem of deformation and cracking, making it more comfortable to use. The price is moderate. The disadvantage is that due to the limitation of I art, the shape has no change,
Basically, straight lines are dominant, which are easily outdated if you are impatient. 304 material is better, but 201 model will still rust in the later period.
The storage rack can help us store our goods well. It also has good effect. So you can buy better if you see what you like. You can refer to the above contents
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