Theories aren't real. That's why they're called theories and not laws (even laws can be broken at times). That's also why we're giving you the most interesting, and probably the weirdest, of Physical Theories we can gather. These are in no particular order.

Wave Particle Duality - Matter and light having the same properties of both waves and particles. What makes this interesting is that waves exhibit particle-like properties and particles exhibit wave-like properties, depending on the specific experiment. Useful for surfers under the sun.

Einstein's Theory of Relativity - it's based on the principle that the laws of physics are the same for all observers, regardless of where they are or how fast they're moving. This one made it here just because it's Einstein's Theory, yeah!

Quantum Probability & the Measurement Problem - Quantum Physics is based on the Schroedinger equation. It basically says that there's a probability that a particle can be found at a certain point. After measuring, you will have to define the result. The Measurement Problem is that the theory does not explain how the act of measurement causes changes. For those who like to go around in circles.

Heisenberg Uncertainty Principle - Heisenberg theorized that there's a fundamental limit to the amount of precision that can be achieved when measuring the physical state of a quantum system. The harder you work at the measurements, the less precise it becomes. For those who don't like working too hard.

Quantum Entanglement & Nonlocality - Some physical systems get entangled with each other, meaning that their states are related to another somewhere else. Even Einstein found this weird. He called these influences,"spooky action at a distance." For those who easily catches flu, we suggest you take a look at this.

Unified Field Theory - a theory trying to reconcile Quantum Physics and Einstein's Theory of Relativity. It's just plain weird trying to understand one, but to combine them? Whoa.

The Big Bang - When everything started. What's weird is that they still have only the vaguest idea as to when it happened. We think it's safe to say that it happened in the beginning of time.

Dark Matter & Energy - Imagine these statistics: 70% dark energy, 25% dark matter, 5% visible matter or energy. That means there's more to what we just currently see out there! See more about Dark Matter here!

Quantum Consciousness - Is there a way to influence quantum experiments by just thinking about it? According to some physicists, there is a connection between consciousness and the quantum realm. Spooky!

Anthropic Principle - It states that the universe can only exist such that carbon-based life can live. For non-carbon based life forms out there, this is your chance to make a stand.

So there it is. The Top 10 Most Interesting and Weirdest Physical Theories. We'd like to hear your side. If you have some, go on ahead and comment!