What balloon can fly into the sky?

Hydrogen balloon is a kind of light bag-like or sac-like object filled with hydrogen, which is the lightest and has a density of 0.0899 g per liter. An object that can float upward by the buoyancy of hydrogen is called a hydrogen balloon.

Hydrogen balloons generally include rubber hydrogen balloons, plastic film hydrogen balloons and cloth-coated hydrogen balloons. Smaller hydrogen balloons are currently used for children's toys or holiday flights. Larger hydrogen balloons are used to hang advertising banners, also known as floating hydrogen balloons. In meteorology, hydrogen balloons are used to detect high altitude. In military, hydrogen balloons are used to set up communication antennas or distribute leaflets. The internal frequency of the hydrogen balloon is close to 20Hz.

Expand the use of data hydrogen

1. Hydrogen is the main industrial raw material, the most important industrial gas and special gas, which is widely used in petrochemical industry, electronic industry, metallurgical industry, food processing, float glass, fine organic synthesis, aerospace and other aspects. At the same time, hydrogen is also an ideal secondary energy (secondary energy refers to energy that must be made from primary energy such as solar energy and coal).

Generally speaking, hydrogen can easily combine with oxygen. This characteristic makes it a natural reducing agent to prevent oxidation in production. In the high temperature treatment of glass manufacturing and electronic microchip manufacturing, hydrogen is added to nitrogen shielding gas to remove residual oxygen.

2. The mainstream view on the pathophysiological mechanism of hydrogen in treating diseases is still the selective antioxidant effect of hydrogen. On the basis of selective antioxidation, people have successively proved that hydrogen has therapeutic effects on oxidative damage, inflammatory reaction, apoptosis and abnormal vascular proliferation in various diseases.

3. Since the discovery of the biological effect of hydrogen, hydrogen has obvious protective effect on central nervous system diseases and dysfunction represented by cerebrovascular diseases and Alzheimer's disease.

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