## Some physics

Started by Blizzard, December 10, 2012, 10:54:28 am

#### Blizzard

##### December 10, 2012, 10:54:28 am
WHAT KIND OF SORCERY IS THIS?!

QuoteWhen you look at words in a mirror, how come they're reversed left to right but not top to bottom? What's special about the horizontal axis?

Seriously, why? I've tried figuring it out, but I couldn't come to any reasonable explanation.
Check out Daygames and our games:

 King of Booze 2 King of Booze: Never Ever Drinking Game for Android Never have I ever for Android Drinking Game for iOS Never have I ever for iOS

Quote from: winkioI do not speak to bricks, either as individuals or in wall form.

Quote from: Barney StinsonWhen I get sad, I stop being sad and be awesome instead. True story.

#### Apidcloud

##### December 10, 2012, 12:02:15 pm #1
I've read something about it some days ago, here's the possible conclusion:

Look in the mirror.

I've just proven the mirror does nothing to the x axis.

Point up, and your reflection points up. Point down, and your reflection points down.

I've just proven the mirror does nothing to the y axis.

Point to your forward and your reflection points in the direction behind you.

I've just proven the mirror reverses the z axis.

You have no ground to stand on disagreeing with any of this.
Instead of wanting to be somebody else, rather become somebody else

"I will treasure the knowledge like a squirrel treasures acorns."

Gibbo Glast 2D Engine - The sky is no longer a limit

#### Blizzard

##### December 10, 2012, 12:32:38 pm #2
Here's an alternative.

Look in the mirror.
Point up, and your reflection points to their up. Point down, and your reflection points their down.
Point to your forward and your reflection points to their forward. Point to your reverse and your reflection points to in their reverse.

Then I've just proven the mirror reverses the x axis.

It seems to be a matter of perspective, but there has to be an absolute somewhere.
Check out Daygames and our games:

 King of Booze 2 King of Booze: Never Ever Drinking Game for Android Never have I ever for Android Drinking Game for iOS Never have I ever for iOS

Quote from: winkioI do not speak to bricks, either as individuals or in wall form.

Quote from: Barney StinsonWhen I get sad, I stop being sad and be awesome instead. True story.

#### Apidcloud

##### December 10, 2012, 12:42:39 pm #3 Last Edit: December 10, 2012, 01:05:49 pm by Apidcloud
using that perspective...yeah, you could say so, but it's just a matter of light reflection - I think.
http://physics.bu.edu/~duffy/PY106/Reflection.html

Edit:
After reading some more articles regarding this issue, I can say: I'm "#\$#%"#\$# confused <.<

I read that mirrors flip the image, so it does change the X axis if you're using mirror's image point of view.
Flop would change Y axis

Now, why? As we're talking about flat mirrors, the angle from incident light is equal to the angle from reflected light.... but I'm still confused

Instead of wanting to be somebody else, rather become somebody else

"I will treasure the knowledge like a squirrel treasures acorns."

Gibbo Glast 2D Engine - The sky is no longer a limit

#### bigace

##### January 05, 2013, 07:45:55 pm #4
It doesn't reverse top to bottom OR side to side. It reverses front to back. Think in the third dimension.
http://www.quora.com/Mirrors/Why-does-a-mirror-reverse-things-horizontally-but-not-vertically

Use Dropbox to upload your files. Much simpler than other upload sites, you can simply place a folder on your desktop that will sync with your DropBox account.

#### Blizzard

##### January 05, 2013, 11:22:06 pm #5
Ah, yes, that makes sense.
Check out Daygames and our games:

 King of Booze 2 King of Booze: Never Ever Drinking Game for Android Never have I ever for Android Drinking Game for iOS Never have I ever for iOS

Quote from: winkioI do not speak to bricks, either as individuals or in wall form.

Quote from: Barney StinsonWhen I get sad, I stop being sad and be awesome instead. True story.