By using this site, you agree to our Privacy Policy and our Terms of Use. Close
DonFerrari said:
o_O.Q said:


"There are infinite things that aren't a perfect straight line"

you mean like exponential increase?

 

"if you put phase 180 degrees for sine you still get sine"

yes its still a sine wave but due to displacement its the opposite of the original which is why why have technology like noise cancellation 

waves that are exactly out of phase are used to cancel the sound waves that are unwanted when someone is listening to music

sure the two sets of waves have the same shape ( like with the sine example ) but they are different/opposite in the sense that they are out of phase which is why they cancel

 

" while we still don't know what is the maximum existing heat as far as I'm aware to have the 2 opposites, altough they wouldn't be opposite, just the 2 extremes of a scale."

 

that is a good point its true that increasing heat and increasing lack of heat don't proportionally rise to two exact opposites because i think at some point as you said a point is reached where 0k is reached so molecules stop moving while we don't know as of yet what the hottest temperature possible is

but wait hold on i'm sure that i've heard of a substance going down past zero kelvin before

oh yeah here

http://www.livescience.com/25959-atoms-colder-than-absolute-zero.html

but still you have a point there its just that this is something that i'm honestly seeing everywhere 

even politics with the left and right, on the left people that want more and more control being imposed while the right wants the opposite less control more freedom


Exponential curve is something that isn't a straigth line (but there are also another infinite forms that aren't a straight line) so you can't say exponential or any other curve is the opposite of straight just because they aren't straight.

Just because two waves can cancel each other that doesn't mean they are opposite, cosine isn't the opposite of sine altough you could say they are if they are in the same phase...but as you know no one would say cosine wave, it's always sine wave plus phase. So it would be silly to say the opposite of sine wave is a 90 degree phase sine wave don't you think? But they would still cancell each other (they have opposite signal in their magnitude, but they aren't opposite things).

You can't increase lack of heat, as there isn't "COLD" in physics, there is just more or less heat.

And on the link you said I'll read it... but it could only mean that 273,15C was the wrong absolute zero. Like time, temperature have no sense being put in a negative scale when you have an absolute zero as minimum point... but sure we could create the VGC temp scale that would have it's zero at the middle point of absolute zero and absolute maximum (whatever it may end up being, maybe 1Million K) and then we would be close to -499.750 degrees VGC at the moment. But having the 0 on the middle wouldn't make the extremes of the scale opposites...

Things in nature aren't necessarily opposites, it's just that for human brains the concept of opposite is easier to understand.


"so you can't say exponential or any other curve is the opposite of straight just because they aren't straight."

 

i didn't i was asking you to give me an example but anyway i would think the opposite of any line infinite or not would be its inverse

 

"Just because two waves can cancel each other that doesn't mean they are opposite"

 

well actually it does 

 

"cosine isn't the opposite of sine"

 

i didn't say it was i said that to cancel a sine wave you use a wave with the same magnitude and frequency but 180 degress out of phase or in other words you use the inverse of that sine wave or its opposite

 

"So it would be silly to say the opposite of sine wave is a 90 degree phase sine wave don't you think? "

 

well i didn't you brought up cosine waves not me 

to clarify no cosine waves cannot cancel their sine waves however the inverse of sine waves cancel sine waves

 

"Things in nature aren't necessarily opposites, it's just that for human brains the concept of opposite is easier to understand."


well yeah i can't disagree that we have to use concepts to interpret reality with and those concepts have to be discarded or changed wiith time as we gain more understanding