I rode a roller coaster once, but I don't know if my eyeglasses will slip during the loops. lolI took physics and I got an A in it, so let me test your knowledge by answering my question above. lol
There was nothing barbaric about it. We tested just about every substance that we could think of with instruments for heat, cold and radiation protection in the lab, then made suits out of them, and tested some more. The animals actually came very late in the process, after most of the final suit designs had already gone up with human jet pilots.
lol, your cat is fine. she's actually having a bit of a flash-back to her kittenhood. when eating a kitten kneads it's mother to press the milk towards them, so she's just daydreaming about one of the best memories she's got. it may occur more strongly during her heat because of the hormones, and her want to get a males attention, but either way, she's perfectly fine and happy, there's nothing wrong with it, and nothing you need to do. you can pet her to remind her of her mom cleaning her as a kitten, but ultimately she's just a happy cat.
I've never heard of a fire extinguisher tax credit. It's possible that you would pay lower home owners or rental insurance premiums by having fire extinguishers in your home.
