It's not actually. It's an abbreviation. Acronyms are a subset of abbreviations that form a word you can say. That means most of the time they need to have a vowel.

For example, NASA is an acronym whereas FBI is not. NASA you pronounce as if it's a single word. FBI you pronounce by saying all its letters individually, just like PhD

I was for all of high school. I could shove a ton of food into my face and never gain any weight.

Then I got to college and it all changed. And before you ask, it was the buffet style dining hand and not beer. Didn't drink until I was 30 but put on plenty of weight.

Discounting cash sales is literally charging more for credit card sales.

So no it's not actually illegal because gas stations do it all the time.

The truth is this isn't a legal question but rather has to do with the service agreements the gas station signs with the credit card processor. For most stores, the CC processor forces stores to charge the same for cash versus credit cards. However they make exceptions for super low margin businesses like gas stations who literally cannot afford to pay the transaction fees and still make money on gasoline.

I've heard of gas stations where they make more profit on a single cup of coffee than they do on 8 gallons of gas.

Anything that gets launched into space is already going at least the same speed as the Earth's rotation. It's not like it gets to space and then just slows down on its own. If anything it might be going faster than the Earth is rotating.