Hey /sci/ I'm trying to develop a theory on what happens to things like sound waves after they "die." I haven't found any current theories on what happens to them after they're created other than they simply cease to exist. But I think something much different. I may just be talking nonsense, but does anyone know any current standing theories about what happens to sound after it "dies?"
for a long time my teachers have hammered into my brain that infinity is not a number, it's just a concept. Now that I understand that, I wonder if zero is just a concept too? I guess this is both a philosophical and a mathematical question.
Philosophically, you can't really have a zero of things, because the thing which is zero doesn't really exist. In fact, if you do count things that don't really exist, you will have an infinite number of those things since there is no limit to things that you can imagine existing (which... Comment too long. Click here to view the full text.
Philosophically, almost anything is a concept. The difference in the concrete case is semantics. What your teacher meant is that infinity is not a number in the sense that is not an element of the set of reals (technical math babble); if you draw a number line, you can never reach infinity, but any finite number can in theory be reached (even stupendously large ones). In this sense zero is a number and infinity is not.
While you are right that zero and infinity are very much related, your wording does not make a lot of sense. "By making zero a concept" has no... Comment too long. Click here to view the full text.
>>7649560 And it cant suck cock. I want EMDrive to blow me.
But still, it seems like the results are definitely and systematically reproducible, even in vaccum. So, why dont we just send one up into orbit and test that shit? The thrust it generates is definitely enough for positional micro-control of satellites.
Let me guess, biology threw out calculus and differential equations out of their curriculum so that now there are no "weeding out" classes. Literal retards.
And don't think I am overreacting. That 3rd year bio major may as well be a pre-med bio major and in 2 decades (when he finally gets accepted into med school) he could be the one treating your life threatening disease and at that moment he may "make a mistake with one fact"... Comment too long. Click here to view the full text.
Scientists have discovered the structure of the material which causes concrete in buildings to break down and crack
Shitty concrete buildings worldwide break down after a few decades because of the alkali-aggregate reaction, AAR.
AAR explained: 1. Concrete's main component = cement 2. Cement contains alkali metals e.g. Na or K 3. Moisture (rain) + alkali metal -> alkaline solution 4. Concrete's 2nd main component = sand and gravel 5. Sand and gravel is composed of minerals like quartz and feldspar, which are silicates 6.... Comment too long. Click here to view the full text.
Sometimes when I do math, I get stuck on some half tricky problems, and when looking up the answer, I still don't get the "why" if y'all catch my drift. Sometimes I really need to see the solution in order to fully understand the problem.
* Is there any mathematical service available that offers solutions and answers to the problems provided by the customer (me)?
Been google for a while now without any luck... So you guys are my lost hope.
-Read before answering-
I'm not talking... Comment too long. Click here to view the full text.
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