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Tag Archives: Energy

Post-Pandemic Scenarios – XLI – Energy 3

The quest for clean ways of transforming energy is relatively recent.We usually talk of “clean” energy but the point lies in the “transformation” of energy and whenever we are transforming energy the second law of thermodynamics rules. In lay terms this law states that the process of transformation always result …

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Bits are green. Right? Wrong!

Bits seem evanescent: the last photo you took probably was converted into some 50 million bits, the zoom call you just finished, it was a quick one, just 10′,  has brought  2 billion bits to your home (the actual number depends on the number of people in the call and …

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Electric cars carbon footprint

I am involved in a group in Turin, Italy, setting up a lab for sustainable mobility and there is lot of talks on hydrogen as a fuel, electrical vehicles (of different sorts) all of this under the umbrella of sustainability, lower CO2 emission, circular economy. The more you look into …

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The weight of bits

Just three weeks ago an article was published on Phys.org reporting on a study by Melvin Vopson, Senior Lecturer in the School of Mathematics and Physics at the University of Portsmouth, and his reflection on the nature of bits, considering the mass energy equivalence (Einstein), the application of thermodynamics to …

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There’s plenty of cold up there…

The second law of thermodynamics is a wall that is stopping us from doing marvellous things, like perpetual motion ;-). One of its tenets is that heat always goes from higher temperature to lower temperature. This means that you cannot cool a body unless you place it in an ambient …

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