How did astronaut Mike Hopkins describe sweat behavior adhering to the skin in microgravity?
Answer
Sweat tends to cling in pools on the skin or form noticeable blobs
Mike Hopkins observed a noticeable difference in how perspiration behaves without gravity. Unlike on Earth where sweat readily evaporates due to convection and gravity, in the weightless environment of the station, sweat exhibits pronounced surface tension effects. It tends to accumulate and cling, forming pools on the skin, often around sensitive areas like the eyes, or coalescing into distinct, visible blobs that have the potential to detach and float away. This clinging behavior requires careful manual management and wiping to remove the moisture.
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