Mirrors And The Fourth Dimension

less than 1m read

·Nov 10, 2024

Mirrors do not show us a fourth dimension, but they do show us what a fourth dimension could do to us. First, notice that some things are the same as their mirror image, but some things are not. These two shapes are similar, but they cannot be rotated to look identical, to be superimposable on each other. This is called being chiral.

A chiral shape and its mirror image are called anatomorphs. These two shapes are anatomorphs in two dimensions. No amount of two-dimensional rotations will ever make them superimposable. To do that, I'll need to smash one of them inside out, turn it into its own mirror image, or rotate it in a third, higher dimension.

If I place a sticker here and face that side away from me, notice that the mirror inverts the object, just like a rotation through a higher dimension. The side of the real object that's furthest from me becomes the side of the virtual object that's closest to me. So, what would I look like if I was rotated around a plane in a fourth spatial dimension and then brought back? I would look like that.

First Duck of Spring (Deleted Scene) | Life Below Zero

Battling the Current | Primal Survivor

View All

The Next Market Crash - 7 Ways To Make Money

What’s up, you guys? It’s Graham here. So I feel like it’s time we address something that probably a lot of us have recently considered, and that would be the next stock market crash. After all, in the last week, the stock market has risen to brand new re…

What Is The Scariest Thing?

[Michael breathing heavily] [laughing nervously] Everyone is scared of something. But is there something that everyone is scared of? What is the scariest thing possible? ♪ [Michael] So what is the scariest thing? - Is it thunder? - [thunder crackles] Shad…

The Seventh Amendment | US government and civics | Khan Academy

Hi, this is Kim from Khan Academy. Today, we’re learning more about the Seventh Amendment to the U.S. Constitution. The Seventh Amendment guarantees the right to juries in civil cases when the value in controversy is greater than twenty dollars. To learn…

Worked example: Balancing a simple redox equation | Chemical reactions | AP Chemistry | Khan Academy

So what we have here is a redox reaction. Things are getting oxidized and reduced; that’s the name, redox. But we want to balance this redox reaction, and when we talk about balancing a redox reaction, we want to make sure we conserve mass and charge on b…

Spread of Islam part 3 | World History | Khan Academy

Other videos, we have talked about the early history of Islam, which really revolves around the life of Muhammad. Muhammad, as we talked about, was born roughly in 570 and dies in 632. And on this timeline here, the white period is before, according to Mu…

Lungs 101 | National Geographic

[Narrator] Breathe in, breathe out. With every breath, the body is replenished and cleansed. A process made possible by two of the body’s most important and delicate organs. The lungs are two major components of the respiratory system. Soft, light, and …

Mirrors And The Fourth Dimension

More Articles