SPOILER!!:
Quote:
Originally Posted by
Roselyn 
Taking Astronomy class so early in the morning, was not a good idea. She was beginning to think that having skipped the last one was a rather good idea. Why did she come to this one again?
Hearing the other answers, she definitely could not process that in her mind. Gah, Astronomy was a hard class. "So...Absolute space isn't just space itself?" she asked, trying to make things clear in her mind. It was definitely harder to do then what she expected.
Gotta wake up! Wait, so what does absolute mean? Meh? Glancing over to some other girl who spoke up, the Slytherin sighed and closed her mouth. Well, that was one way of putting it she supposed.
Quote:
Originally Posted by
alohomora♥ ''Absolute space is hypothetical concept closely tied to the thought of Isaac Newton. The existence of absolute space contradicts the internal logic of classical mechanics since, according to Galilean principle of relativity, none of the inertial frames can be singled out.Absolute space does not explain inertial forces since they are related to acceleration with respect to any one of the inertial frames.It acts on physical objects by inducing their resistance to acceleration but it cannot be acted upon.'' She knew something about it. Her that knows physics very well. This class is going to be very interesting.
Quote:
Originally Posted by
lilithpotter "Absolute space is a concepts that are closely related to Iassic Newton. Absolute space is when physical space is independent of what is occupying it. This however is a contridiction. According to the Galilean princpleof relativity none of the inertail frames can be singled out." she said and cont'd "It acts on acceleration or energy and is focused on physical objects."
"Good answers, both of you," Risu said, smiling faintly. "Textbook even, you might say. I was really looking for your own ideas of what absolute space might be, but this works, too."
The picture of the young Albert Einstein disappeared from the wall as Risu continued, "As you rightly said, Isaac Newton is a person often mentioned with the notions of absolute space and time. In his view of the Universe - and, I might add, almost everyone else - space was more or less a... shall we say, backdrop. Or a stage, perhaps, on which the stars and planets moved in their orbits."
He nodded in the direction of the Slytherin who'd asked a question. "These descriptions might answer your question, Miss Flores-Shepherd. Even if you're not sure what 'absolute space' means, it's still a very obvious, easy to understand picture, isn't it? We don't think of space as something that can be stretched or moved. Space is
space. It's a big," he shrugged, "something or other that everything else happens in." He paused again.
"But no, not quite. It seems superfluous to ask, with your books ready and everything, so I shall dispense with the question and comment briefly on absolute time. It's an even more intuitive concept than absolute space, wouldn't you say? You might be able to think of non-absolute space; maybe a Muggle submarine being compressed as it enters deeper waters with more pressure, but what would 'different' times look like? How can time run slower? Or faster? How is it not, er..." he glanced at a clock perched rather precariously on top of a stack of books on the desk, "9.42am everywhere in the Universe? Newton clearly thought it was, and many, many other people do too. Sometimes that includes me."
He looked at the class. "We shall attempt to answer these questions. Now that we have an idea of what absolute time and space are, let's focus briefly on the opposite. We speak of relativity. The saying that 'everything is relative' is almost a joke nowadays, but what
is relative? And I'm not even talking about physics here, just in general. What do we mean when we say that something is 'relative'?"