Understanding what we perceive

Graphic - senses
http://www.flickr.com/photos/decade_null/2096967187/ http://www.flickr.com/photos/jjschad/102919997/sizes/l/ http://www.flickr.com/photos/33909700@N02/3159698458/

The groundroots of physics are to be found in a curiosity, sometimes wonder, about the world we see.

We might be puzzled by the forces we experience in lifts or (for those with the right constitution) rollercoasters (left).

...or we might ponder over the little whirlpools we see around the plughole as the bathwater drains away (middle).

...or, maybe muse about the delicate intricate patterns of frost on the windowpane.