So we all know how car tires are less grippy when it’s wet.
But why is it better to use water or saliva on my fingers when trying to open a plastic bag, or quickly turn paper pages over?
And why does applying washing soap/shower gel to my slippery yoga mat make it grippy again?
Does this means car tires would be grippier on a soapy surface? Is so do they apply this principle in (for example) motorsports?
Thanks in advance folks!
In: 3
The sweat glands on your hands are somewhat different than in most other parts of the body, in that they excrete a much more watery sweat, and it’s been surmised that the purpose of that is to increase grip. Some evolutionary biologists have suggested that that is one of the mutations that help human ancestors with handling items and developing hand skills.
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