在太空中的火焰和地球上有什么不同吗?人们早就知道,太空中的火焰是球形的,但除此之外,太空火焰还有许多鲜为人知的现象,美国宇航局的天文学家最近揭示了这些现象。他们发现,在太空微重力条件下,火焰的物质交换是以分子扩散的形式完成的,这让火焰的行为很有趣。比如说,分子扩散让氧气进入火焰,让燃烧产生的物质离开火焰,但这个过程比地球上的火焰物质更替过程慢100倍。 Is there any difference between a flame in space and that on Earth? It has long been known that the flames in space are spherical, but in addition there are many little-known phenomena of space flames. NASA astronomers recently Reveal these phenomena. They found that under the conditions of space microgravity, the exchange of matter in the flame is done in the form of molecular diffusion, which makes the behavior of flame very interesting. For example, molecular diffusion allows oxygen to enter the flame, leaving the resulting material to leave the flame, but this process is 100 times slower than the replacement of the flame material on Earth.