Thermodynamics - Blog Posts
Also it sounds like sci-fi but one day (possibly very long one day) with genetic technology even extinct creatures may eventually be brought back.
Earth can be studied like a machine, a very complicated one indeed. In this view, it can be subdivided in many parts, each one a subsystem that can also be interpreted as a machine interconected to many others to form the entire Earth system. One of this parts is the biosphere, and a subsystem of the biosphere refers to human activity. Since human activity can be approached by economics, it is appropriate to talk about economics as part of the entire Earth system, as a piece of the biosphere machinery. This is the view of Ecological Economics.
As it happens to any machine, Earth has to obey the second law of thermodynamics, entropy can only increase with time. And what is the power source of the Earth machine? Easy, the solar radiation. Everything that has ever occurred, occurs, or will occurs could only take place in Earth because of solar radiative energy. Even these lines that I am writing, would not be here if not because the sun shines.
That is why it is so important to be aware of the energy cycles of Earth to understand everything, including economics. Think about it: the energy that powers the device you're using now, and ultimately the brain that is thinking and taking decisions now, every single joule of this energy was once photons leaving the sun towards Earth. Think of this interconnectedness and believe, and worry, and care about Earth, the biosphere, the econosphere and humankind, because everything is One!
A beautiful 5-cylinder inline Stirling engine.
5-Zylinder Reihe Stirlingmotor (5-cylinder inline stirling engine)
Thermal Processes with Ideal Gas
Anybody here good at physics an willing to answer any questions, I'm desperate 😭
I think i'm cooked for my final ngl
Take a look at this rare glass defect that our QC folks caught on the bottling line! It's a washer from the forge imbedded in the bottle wall. Normally, the difference in thermal expansion coefficients between the metal and glass would cause the bottle to weaken and break as it cooled. That it survived and was filled is astounding. #foodscience #enology #wineindustry #packaging #glassblowing #latergram #thermodynamics #allthewine
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I'm working by the fire because it is so cold today
I wish you all a relaxed yet productive day ✌🏿
Physics HW and Calc 3 notes are on the board today
🎧 Oldschool Rap - Lofi Mix #1 by VoidGalaxy
Chill notes
With a pen that’s as old as I am (I really need new stationary :-| )
🎧 Oldschool Rap - Lofi Mix #1 by VoidGalaxy
Entropy and Monday Mornings
It’s a Monday morning. You reach work to find 25 unread emails, a messy house, 5 essays due, a broken coffee machine, and you’re not sure if you locked your door on the way here. And it doesn’t end there. There’s more work piling up! When there’s chaos all around us, it is only natural to feel overwhelmed. What if I tell you, every object (yes, the non-living ones) experiences this too!
Only at a very atomic level. Each task in our mind is a microstate, a unique arrangement of thoughts at that point of time. The greater the microstates, the greater the number of tasks, the greater the chaos. Chemistry defines a microstate as an instantaneous arrangement of atoms or molecules in a system. And just as our task list increases, the chaos increases. Similarly, for a system, as the number of microstates increases, the entropy increases. Entropy is the measure of disorder or randomness or the possible number of microstates a system can have. It’s just chaos, where lower entropy means greater order and less chaos(Friday Nights), and higher entropy means more disorder and more microstates(Monday mornings).
Entropy tends to rise with time in an isolated system, such as an overloaded brain on a Monday. This implies that things naturally transition from order to disorder in the absence of outside input. Now, imagine some Lo-fi music playing in your headset as you work through the e-mails, sipping on the perfect coffee that you ordered, powering through your day. Maybe you even wrote a to-do list, helping you stay organised. Doesn’t seem so bad when an external effort is made. Similarly, in isolated systems, entropy usually tends to increase over time, meaning things usually go from a state of orderliness to disorderliness unless an external energy is put in to maintain structure.
S = k. ln(W)
Mathematically, the Entropy (S) of any isolated system can be measured by multiplying the Boltzmann constant (k) by the natural logarithm of the number of microstates it possesses (lnW). Entropy isn’t a bad thing—it’s just a natural tendency of systems to become more disordered over time, unless energy is added to maintain order. In your case, a little bit of organisation (external energy) can help you manage the entropy in your Monday morning.
Thermodynamics and tiny houses.