Could Human Civilization Spread Across the Whole Galaxy? [Science Video]

Could human civilization eventually spread across the whole Milky Way galaxy? Could we move beyond our small, blue planet to establish colonies in the multitude of star systems out there? These questions are pretty daunting, but their (theoretical) answers were actually put forth decades ago. Roey Tzezana describes the conceptual von Neumann machine. [Source: TED […]


The Smokin’ Science of Fire Extinguishers

An interesting presentation that takes a look at the science of fire extinguishers: Different fuels create different kinds of fires, and each of these fires need to be extinguished using a very specific method requiring a certain class of extinguisher depending on the type of fire you’re dealing with. Water is often not effective enough […]