Faultless Hot Water Bottle

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FAQ

Hot water bag warm waist is good
It is good to use it occasionally. But for a long time, will cause dependence
Who invented the hot water bag?
The rubber we use now (or similar material) hot water bag do is Croatia Engineer Eduard Penkala (1871 - 1922) of the invention, he holds 80 patents, including the "mechanical pencil" (now the automatic pencil prototype), a solid ink pen (ball pen, the prototype now) a rail vehicle brake system, a battery anode and so on.
Who has ever seen a solar hot water bag? Easy to use?
Not easy to use, hot summer weather, lack of sunshine, the most need to take a bath when you can not wash, the largest fire
About PVC hot water bag
PVC heating will produce chlorine, so it is not environmentally friendly materials, PET and PP are environmentally friendly materials
Using hot water bags for heating is a kind of heat transfer.
There are two ways in which an object can be changed: work and heat transfer
Menstrual period with hot water bag abdomen is good
Hello, I do not know your situation is a primary dysmenorrhea, or secondary dysmenorrhea. The former refers to the reproductive organs without organic lesions of dysmenorrhea, the latter for reproductive organs have organic lesions, such as endometriosis, chronic pelvic inflammatory disease, blood flow and tumor. Suggest that you go to a regular hospital for examination, in addition to strengthen physical exercise, enhance physical fitness. Pay attention to menstrual health, avoid mental stimulation and overwork, pay attention to warm premenstrual and menstrual cycle, you can also apply a hot water bottle during menstruation alvine, foot bath with hot water, we must pay attention to the body warm, Hot Milk every night before going to bed drink a cup with a spoonful of honey, can alleviate or even eliminate the pain of dysmenorrhea.
How bad the use of waste electric hot water bag
To continue to charge, so long service life.
What is the reason that the hot water bag will float in the cold water basin
Archimedes's law is an important principle, it is pointed out that hydrostatic, immersed in static fluid objects by a buoyancy, its size is equal to the weight of the fluid displaced by the object, vertical direction and through the centroid of the displaced fluid. This conclusion was first proposed by Archimedes, which is called the principle of Archimedes. It is also true that the object is partially immersed in the liquid. The same conclusion can be extended to gas.