06 SEP 2011 by ideonexus

 Model, Experiment, Theory

Model-making, the imaginative and logical steps which precede the experiment, may be judged the most valuable part of scientific method because skill and insight in these matters are rare. Without them we do not know what experiment to do. But it is the experiment which provides the raw material for scientific theory. Scientific theory cannot be built directly from the conclusions of conceptual models.
Folksonomies: theory model experiment
Folksonomies: theory model experiment
  1  notes

Models, the creative part of science, is neccessary to know what experiments to perform, and experiments lead to theories.

19 MAY 2011 by ideonexus

 The Empty Space in an Atom

A favourite analogy portrays the nucleus as a fly in the middle of a sports stadium. The nearest neighbouring nucleus is another fly, in the middle of an adjacent stadium. The electrons of each atom are buzzing about in orbit around their respective flies, smaller than the tiniest gnats, too small to be seen on the same scale as the flies. When we look at a solid lump of iron or rock, we are 'really' looking at what is almost entirely empty space. It looks and feels solid and opaque because o...
Folksonomies: wonder atom analogy model
Folksonomies: wonder atom analogy model
 1  1  notes

Our senses are not adapted to experience the empty space between atoms.