Star Trek is About Diversity

Moses Maimonides, who lived nearly 900 years ago, wrote a book called The Guide for the Perplexed. In it, he said: "The human race contains such a variety of individuals that we cannot discover two persons exactly alike in any moral quality or external appearance. This great variety and necessity of social life are essential elements in man's nature." These are the same principles, the same philosophies, which are inherent in "Star Trek." But let's go back to what "Star Trek" really is. It...

 The Future History of Uplift

The active pursuit of uplift really took hold as a scientific field during the great flowering of transhuman culture, an era that also gave us the widespread settlement of space, extensive human genetic modification, nanotech, cognitive science, and the digital emulation of consciousness. It is in fact the convergence of these fields, and the feedback loops spawned between them, that enabled the uplift project to make so much headway so quickly. It’s easy to see uplift as a breathtaking cu...

 Feromagnetic Materials and Hysteresis Loops

Ferromagnetic materials are paramagnetic materials. Below the Curie temperature ferromagnetic materials show spontaneous magnetization, and this means that the spin moments of neighboring atoms in a microscopically large region (called domain) result in a parallel alignment of moments. The application of an external magnetic field changes the domains, and the moments of different domains then tend to line up together. When the applied field is removed, most of the moments remain aligned, whic...