rubbers

Also, human players often have different rubbers on the forehand and backhand sides, which is why rules demand that both rubbers have very distinct colors.

If the rubbers on your windshield wipers is in a bad condition, you need to fix them.

Ethanol has a propensity to suck up ambient moisture and is more demanding of rubbers and happily attacks aluminum.

By contrast, compare silicone rubber (widely believed to by 'hypoallergenic') with previous natural and synthetic rubbers.

Solid build, ok battery, can have them on during yoga using attached rubbers and kind of can have them over glasses.

Actually, why is the opponent playing with a non-standard bat with two black rubbers?

Skin oil and synthetic oil are very chemically different - as are the rubbers used in a cheap mousewheel versus an engine belt.

Here's a good page about conservation of rubbers and plastics for those who like to preserve their vintage stuff for a long time.

Using oil to produce rubbers and plastics is less of a concern.

Using black rubbers on both sides kinda demonstrates their non-engagement with spin.

By feedstock, I mean the hydrocarbons that are required for the bulk chemicals, fertilizers, plastics, rubbers, detergents, pharmaceuticals etc.

>Ethanol has a propensity to suck up ambient moisture and is more demanding of rubbers and happily attacks aluminum.

"Put down that box of rubbers, I have something important to say!!"

OK, now everybody take some rubbers." However, if having sex puts you at a high risk of infinite punishment forever (instead of infinite reward forever) it sort of changes the argument which is why the two sides have difficulty even discussing the topic.

So, back in the day we would have said "bring your rubbers." I suppose once this condom hits the market we will say something like "make sure to bring the lead for your pencil." Actually, do people ever refer to the graphite in pencils as lead anymore?