This isn't an action shot of a cube of metal as it falls to the ground. This is real life levitation.
The Second Law of Thermodynamics is an exceptionally simple statement, yet has profound implications for the evolution of the universe. Despite it's simple form however, it seems that there are many misconceptions that people have about what it really means.
To anyone who is confused about what it is exactly that theoretical physicists do, here is a brief yet broad summary of what we're trying to achieve.
If we see green apples fall from a tree every day, why should we reason inductively and conclude that every apple that falls from the tree will be green? Why not conclude instead that the next apple to fall from the tree will be red?
The universe in colour! ...or not. The object I'm focusing on today is almost completely black, it gives off virtually no radiation of any sort.
“To those who are trained in science, creationism seems a bad dream, a sudden coming back to life of a nightmare, a renewed march of an Army of the Night risen to challenge free thought and enlightenment.” - Isaac Asimov
Infinity is still an extremely mysterious concept that we're unable to properly grasp, yet mathematicians have penetrated deeper into the world of infinity than ever before, and there is a wealth of new discoveries. The interesting question is whether these infinities have any relevance to the real physical world.
A new feature! Each week I'll post an image related to something from Physics, Philosophy or Mathematics and say a little bit about it and it's significance.
One of the most puzzling mysteries of modern day Physics is why mathematics is such a useful tool for uncovering the workings of the universe. Although mathematics has always been the only acceptable language in which to phrase serious physics, letting mathematics guide the direction of physics is a late 20th/21st century revolution in scientific thinking.
It is not difficult to find online forums and blog posts that proclaim facts and arguments as if they were certain. People of all philosophical alignments will do this. Theists will proclaim what they believe to be indisputable facts like: "Something must have caused the Big Bang", and atheists are often guilty of prophetically declaring their favourite origin story for the universe: "Quantum fluctuations produced the universe" or "Many-worlds explains fine-tuning".