To what height do helium-inflated balls rise? Answers to amazing questions!

To what height do helium-inflated balls rise? The flight of a balloon filled with light helium can end with one spectacular explosion - or slow fading. As you climb, the pressure around drops, the ball begins to inflate, the thin material of ordinary inflatable toys does not withstand and bursts. Another thing is special balloons from special, additionally reinforced materials. Carrying weather balloons on board, they also climb 30 km, where rarefied air can no longer provide sufficient strength for Archimedes to counteract the weight and push the ball higher. The record so far belongs to the engineers of the Japan Space Agency (JAXA) and their project BU60−1. This ball with a reinforced polyethylene sheath with a volume of 60, 000 m3 in 2002 reached a height of 53 km.

Is it true that our body produces “endogenous alcohol”? Yes, and two ways are possible for this. Conditionally endogenous ethanol is formed as a product of the fermentation of carbohydrates, which enter the intestines with food and become the prey of local microflora. Truly endogenous ethanol can be synthesized by our own cells from certain carbohydrates, lipids and even amino acids, playing a variety of roles in the metabolism and energy metabolism of cells. For example, it participates in the transport of energy carrier molecules through mitochondrial membranes, helps control the activity of certain proteins, and can even serve as an energy source. The amount of endogenous alcohol in the blood and exhale is small, ordinary breathalyzers will not notice it. Detection requires more sensitive instruments — or a rare disorder leading to abnormal alcohol production by intestinal bacteria.

If diamonds are carbon, do they burn? Yes. In 1772, the great French chemist Antoine Lavoisier showed in precisely this way that diamond consists of carbon: it burned it and found that it received simple carbon dioxide. However, a very stable crystal lattice makes the diamond more inert than other allotropic forms of carbon and its compounds. For example, a tree lights up already at about 300 ° C, while a diamond needs three times higher temperature.

The article "Questions and Answers" was published in the journal "Popular Mechanics" (No. 1, January 2017).

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