TED Conversations

Casey Christofaris
Munroe Falls, OH
United States

Owner, CS3 Inc

This conversation is closed. Start a new conversation
or join one »

Is a shadow a three-dimensional object? I am proposing that we are 3 "objects" in one being. We are the light, the body and the shadow

A shadow is a 3d object, because we live in a 3d world right?

So that means they have, length, width, height, volume and mass?

And the body is just "shadow" or matter that reflects light, like a mirror, or the moon

Showing single comment thread. View the full conversation.

Gordon Barker 10+
- +1
Mar 8 2013: No , a shadow is the projection of a 3d object onto a plane. It has no thickness, just width and breadth. The projection of a n-dimensional object is always n-1 dimensions in size.
The projection of a plane on a line is a point, the projection of a 3d object is a plane, the projection of a 4d object is a hypercube (in 3d). I've never figured out the mathematical proof for it but it seems a good hypothesis
- Casey Christofaris 10+
  - 0
  Mar 8 2013: So its 2d
  - Nathan Cook
    
    0
    Mar 29 2013: There is thickness. It does encompass3 dimensions of space but is only the absence of some light. Even shadows have light in them.
- Casey Christofaris 10+
  - 0
  Mar 8 2013: If there is no thickness why can I walk inside of a shadow?
  - Gordon Barker 10+
    
    0
    Mar 9 2013: The same way you walk in a dark room.
    - Casey Christofaris 10+
      
      0
      
      Mar 9 2013: Is that not shadow absent of life

Showing single comment thread. View the full conversation.

Sign In

To join or start a conversation, you'll need to sign in. Not a member? Register Now (it's free and fast).

Live Conversations

Live Conversations are hosted by TED speakers and TED Fellows. Ask your questions and participate in the discussions on the following dates and times: