michel123456

Right. Sorry for the missing e in Schablone. I couldn't figure the reason for those angles, but the German Wiki helped a bit. (edit) oops, mathematics destroyed. See below & wiki article Where 2α + β =360 but I must admit the German explanation is far from clear to me.

Today I retrieved from a drawer this drawing instrument, called "stencil" or Schablon in German, that we used when drawing by hand (we stopped about twenty years ago). Looking at it, I noticed this strange angle 41,25 degrees. Combined with the other one 7,10 degrees. And I really could not recall why? What is so special with those 2 angles? Internet came to the rescue and I found it, but just by curiosity, can you figure out what is so special with those 2 angles?

That is already a question.

What I want to say is that if you erase Time, you cannot even imagine a point. The concept of a point in space standing out of time (somehow eternal) is wrong IMHO. In fact what we see as a point in space is a section of a line extending in Spacetime.

Think of this: for a point to exist, it must...exist. So, in reality a point is already 1 dimension (Time). A line is 2 dimensions (1 space + 1 time =2), An area is 3 dimensions ( 2 space + 1 time=3), and a sphere is 4D (3D+1T) You cannot have a point without time. And Time does not come after the sphere, Time is there right from the beginning.

There is also a "theory" about such a civilization on Mars. Googling makes you find astonishing things.

Oops sorry. i used the right click "quote this" from your reply instead of doing it from the original post.

Welcome to the club. Not velocity. What you mean is called acceleration.

https://noriohayakawa.wordpress.com/2016/03/19/famous-belgian-black-triangle-ufo-a-fake-edgar-fouches-tr3-b-is-also-a-hoax/ A triangle of polystyrene.

Right. Nuclear waste, I forgot about that.

You are correct about pollutants but I am afraid on such time ranges maybe the worst pollutant will become ...petroleum. Bronze statues can last if they are not discovered, because once discovered they will be re-used for making new artifacts. And tens of million years is too much. A few thousand years is large enough to wipe everything. Say ten or twenty thousands. Even in the span of Human beings you can fit several civilizations. They are "theories" like this. None of them being really serious. There is a hammer stuck in rock "millions of years" old, but wood cannot last that long. I am not aware of any solid evidence.

Expand on this. Avoid the Big Bang. Yes I believe it is accepted science that Time is a perpendicular dimension to our three space dimensions, and No, Time cannot have a velocity. Velocity is a distance divided by time. The "velocity of time" should correspond to another definition.

I remember a professor told us that the only trace of our civilization on the long range would be the highways, because large piece of lands are being displaced & drilled by tunnels.

Now I realize that GPS is not on geostationary orbit. I wonder why. I would have thought that a positioning system would have been based on unmovable reference points.

Today I learned about the UDC system Universal Decimal Classification, and about the Mundaneum, a forerunner of Wikipedia. https://en.wikipedia.org/wiki/Universal_Decimal_Classification#Main_tables https://en.wikipedia.org/wiki/Mundaneum

I have the feeling there is a confusion. IIRC the cat is linked to the fate of a single particle. Not the entire cat has to be in superposition. The trick of Schrödinger is to directly link a macroscopic phenomenon (the cat live or dead) to a quantum one. By doing so he enhances the "absurdity" of quantum behaviour.

Oh yes I have lived such an experience. _Another example is the Manager (or CEO) traveling to find business opportunities: interacting with another culture can be messy and it is highly recommended to get as much as possible information before proceeding.

If you don't like $2 because indeed dollars squared are a bit strange (like s2). It is good to recall that the constant in E=mc2 is not c, but c2. What is the square of a velocity? a velocity multiplied by a velocity? isn't that the same bizarre as $ multiplied by $?

Well I believe that is the mistake. IMHO time is already hidden in the metre. That is the reason why you don't see time around you: what you see is distance (metres) and then you must make the statement that to transfer through this distance you need time (aka the finite Speed of light). Which means that time and distance are unsplitable: when you have the one, you have the other (aka Spacetime). So to me, the only logical conclusion is that time is hidden inside distance. And when you look around you in fact what you see is distance & time alltogether (aka when you look at the stars you are looking at the past of these stars). And everything fits in place.

You are trying to be funny but the meaning was about $2 168291.41

I am less sure now. I was supposing that a number has no units. Being positive or negative.

Do accountants use dollars squared? Imaginary numbers have no units. y^2 that is the square of the distance again. Which is an area, and not a very long distance. So you have an area multiplied by an area (A). Correct? And what about kg^2? mass multiplied by mass? The Earth multiplied by the Sun. A banana multiplied by an umbrella (remebering Pr. E.R. Laithwaite)

Nicely said. However it is still bizarre that you can use quantities that do not exist in order to get a correct result. It looks more like a prestidigitator trick than a representation of the way the laws of nature are acting.

It doesn't explain what s^2 is for a thing. But on the other hand I understand your question: seconds by seconds (s/s) gives unity, it doesn't give you s^2.

What I find utterly troubling is the multiplication of units. OK meters by meters makes sense (square meters) where the m^2 is something that you can represent easily. M^3 is volume, no problem. But in one of the tables posted above you encounter m^4. What is this? Similarly, square seconds (s^2), what is this? As if time (which is single-dimensional) could be squared. Also, if one looks at the Universal Law of Gravitation, one sees kg^2 in the formula. Mass multiplied by mass: mass squared, what is this? And so on, physics if full of these.