There is a well established maximum speed for all kinds of travel in nature: the speed of light. Even in Star Trek, this maximum speed is obeyed. This is why the space travelers have to use wormholes in order to take galactic short-cuts to travel long distances. Even at the speed of light, their travel would take too long. Once in a while, some scientists claim to have found something which travels faster than the speed of light (compare “Faster than light”). This would be big news if it was true, since parts of the physics theories would have to be rewritten. But so far, the speed of light of roughly 300 000 km per second (186,000 miles per second) is still our maximum speed.
The Universe Verse is about the creation of the universe, our solar system, and the origin and evolution of life. In his book Dunbar covers the most important basic concepts of physics, chemistry and biology. He covers these important concepts accurately and in comic book form.
I often find myself “craving” certain foods and doubt that I’m the only one. In fact, nearly 100% of women and 70% of men surveyed report the same thing. When we get a craving, we experience an intense urge to consume a specific food and may even go out of our way to obtain this food. In this way, craving is different from both hunger (when we desire any type of food) and liking a food (which is far less intense). But why do we have food cravings? Here are some of the theories...