in the 19th century James Clerk Maxwell described a small demon who could reverse the second law of thermodynamics. How? Image a hermetic chamber full of a gas at a determined temperature. This chamber is divided in two separate parts divided by a tiny door. If the demon decides to open and close the door very fast at will, some molecules will pass from one part of the chamber to the other, hence decreasing the temperature in one side and increasing it on the other side. Does it mean that the entropy then decreases and the second law of thermodynamics is violated? Well, this was a thought experiments some years back, but now a real experiment has been performed. Discover more below!
What makes a theory to be a "theory"? Well, in theory means hypothetically, and therefore it is a speculation. It may or not be correct. And that is why there are many theories that we might take for granted but an alternative THEORY can always be expressed. And this happens to the origin of the mass extinction which devastated Earth and ended the life of dinosaurs. I let you discover more by clicking on the picture below. What do you think??
No, it has nothing to do with how fast a paradoxical bus can drive in the Bloch Sphere. Instead, the Quantum Speed Limit is related to the Heisenberg’s uncertainty principle, not the well known between position and momentum but the energy-time uncertainty. Calculating the minimum time required for a quantum state to evolve to a different one placed at a certain distance from it, this speed limit has been set up. Click below to explore more!
HAPPY NEW YEAR Science freaks!!! To start the new year with a bit of information about the climate situation, it seems that the forecast is not really optimistic. For example, look at the 2015 resume HERE, where it is possible to observe that the climate change has influenced a lot, and we know it, since it has been anomalously hot the past year. And not only that, but it seems El Niño comes stronger than ever in 2016. Discover more by clicking on the image below!