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Redefining Reality - The Intellectual Implications of Modern Science

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Earlier, we talked about Thomas Kuhn’s view <strong>of</strong> the history <strong>of</strong> science.<br />

According to Kuhn, normal scientists work within a paradigm that<br />

sets out a certain picture <strong>of</strong> reality. Occasionally, however, anomalies<br />

appear; when this happens <strong>of</strong>ten enough, science enters a period <strong>of</strong> crisis. In<br />

this lecture, we’ll look at cosmology at the turn <strong>of</strong> the 21 st century to see if<br />

<br />

models <strong>of</strong> the big bang and the positing <strong>of</strong> dark matter and dark energy. New<br />

elements are being added to our understanding <strong>of</strong> reality that have not yet<br />

been experimentally or observationally discovered. Is this a simple tweak or<br />

the harbinger <strong>of</strong> something more important?<br />

<br />

Although the big bang theory has become nearly universally<br />

<br />

concerns a class <strong>of</strong> missing particles called magnetic monopoles.<br />

Like electricity, magnetism involves two charges, referred<br />

to as north and south; further, like magnetic charges repel<br />

and opposite charges attract. <strong>The</strong>re is, however, one major<br />

difference between electricity and magnetism: Particles can<br />

have a particular electrical charge in and <strong>of</strong> themselves, but we<br />

never see this with magnets.<br />

<br />

<br />

For example, a bar magnet has a north end and a south end.<br />

If you break the bar in half, you end up with two dipolar<br />

magnets—each with a north and a south end. We have never<br />

seen a magnetic monopole, one that is just a north in itself or<br />

just a south in itself.<br />

But if the standard model is correct, then there was a stage in<br />

the early universe when the energy density would have been<br />

just right to create many magnetic monopoles. Further, these<br />

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