the.com/lubrication
The art of making friction someone else's problem.
means The application of a substance between surfaces to reduce friction and wear, letting them slide instead of grind.
from From Latin lubricare, 'to make slippery,' rooted in lubricus, 'slippery, slithery' — the same slick root that gives English 'lubricious.' The Romans used it for anything prone to slipping, from icy roads to dicey morals; English narrowed it, by the 17th century, mostly to oil doing honest mechanical work.
- viscosity index
- measures how much oil wimps out when heated
- ancient trick
- egyptians greased sledge tracks with water and fat
- biological version
- synovial fluid lubricates joints better than any synthetic oil
- counterintuitive fact
- too much lubrication can cause more wear than too little