Climate change is the change in average patterns of natural events or phenomena such as temperature and rainfall over time in a region or around the world. Changes may occur naturally as well as occur due to human activities posing threats to nature. How Climate Change Occur / Causes of Climate Change There has been a drastic increase in climate change since the industrial revolution around the globe. Greenhouse gases are the primary cause behind these climatic changes. These gases trap and hold light energy reaching the earth’s surface from the sun, and radiate it in the form of infrared heat. Eventually, this process causes an increase in the average temperature of the atmosphere of our globe. Carbon dioxide (CO2), methane (CH4), nitrogen oxide (N2O), and chlorofluorocarbons (CFCs) are major greenhouse gas contributors. Carbon DiOxide (CO 2 ) . CO2 is generated due to natural processes (i.e. volcanic eruptions) as well as through human activities (deforestation and burning...
Do you know if the Sun was fueled by Gasoline or wood, it would have been burnt out in just a few hundred years, So how it is still here after 4.5 billion years.... Physics!!!
The Sun is like a big nuclear reactor in the sky. It is fueled by nuclear reactions that fuse Hydrogen atoms into Helium, other heavier elements and energy (in the form of Photons) in the process. In this way the Sun is slowly converted into mass and energy in the form of sunlight and have more than enough fuel for us for billions of years. But nuclear fusion is not as simple as it looks.
Fusion is the process that powers the Sun and the stars. It is the reaction, in which two atoms of Hydrogen fuse together to form an atom of Helium. In the process some part of hydrogen is converted into energy.
On earth we need to heat hydrogen hundred times hotter than that of the Sun to set a fusion reaction. Sun has a temperature of 15 million Celsius degrees in its core whereas it requires more than 100 million Celsius degrees to start a fusion process in Hydrogen. So how does the Sun do it? Quantum Tunneling is the answer to this question.
Quantum Tunneling is the Quantum Mechanical effect in which particles of hydrogen atoms have a finite probability of crossing an energy barrier, such as the energy needed to break a bond with another particle, even if the particle's energy is less than the energy barrier of those 100 million Celsius Degrees.
There is a small chance that Hydrogen atoms will fuse together even if they are not quite hot enough for fusion process. And the Sun is so big, it has a lot of Hydrogen atoms that these small chances happens very often and that's why the Sun is energized.
Informative
ReplyDeleteI like to think that a peculiar Topology for the smallest component of matter makes tunneling more understandable. A contractible non-orientable multiply-connected manifold can be used as the model for all known particles, and even some conjectured ones. One feature of this Topology is that its inside is its outside, and so "tunneling" can actually be demonstrated by a child. It's that simple, if you have the appropriate model.
ReplyDeleteThe structure is trademarked TRIMOBIUS (R), and was patented for a magical toy in 1979. (US Patent#4,138,744) Because it's a contractible manifold, it fits well into those very tight places. Because of normalization, Newtonian mechanics comes out in the wash.
More to follow.
Michael