# Interpretation of Special Relativity

When we looked at Quantum Mechanics, we talked about its various interpretations. The reason we have such interpretations, Ich sagte,, is that QM deals with a reality that we have no access to, through our sensory and perceptual apparatuses. Andererseits, Special Relativity is about macro objects in motion, and we have no problem imagining such things. So why would we need to have an interpretation? The answer is a subtle one.
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# Lichtgeschwindigkeit

The speed of light being a constant sounds like a simple statement. But there is more to it, quite a bit more. Let’s look at what this constancy really means. Auf den ersten Blick, it says that if you are standing somewhere, and there is a ray of light going from your right to left, it has a speed c. And another ray of light going from left to right also has a speed c. So far, so good. Now let’s say you are in a rocket ship, wie in der Abbildung unten, moving from right to left.

# Spezielle Relativitätstheorie

Wenn wir hören, über Einstein und der speziellen Relativitäts (oder die spezielle Relativitätstheorie, den richtigen Namen zu verwenden,), Wir denken an die berühmten $E = mc^2$ Gleichung, und seltsame Dinge wie das Zwillingsparadoxon. Während diese Dinge sind alle wahr und wichtig, das Problem SR zu lösen versucht, ist ein ganz anderes. Es ist ein Versuch, ein Grundprinzip in der Physik zu verteidigen.
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# Quantum Mechanics – Interpretations

Whenever we talk about Quantum Mechanics, one of the first questions would be, “What about the cat?” This question, wirklich, is about the interpretations of Quantum Mechanics. The standard interpretation, die so genannte Kopenhagener Interpretation, leads to the famous Schrodinger’s cat.
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# Quantum Field Theory

In this post on Quantum Mechanics (QM), we will go a bit beyond it and touch upon Quantum Field Theory – the way it is used in particle physics. In the last couple of posts, I outlined a philosophical introduction to QM, as well as its historical origin – how it came about as an ad-hoc explanation of the blackbody radiation, and a brilliant description of the photoelectric effect.
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# Historical Origin of Quantum Mechanics

In diesem Abschnitt, we will try to look at the historical origin of Quantum Mechanics, which is usually presented succinctly using scary looking mathematical formulas. The role of mathematics in physics, as Richard Feynman explains (in his lectures on QED given in Auckland, New Zealand in 1979, available on YouTube, but as poor quality recordings) is purely utilitarian.
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# Quantenmechanik

Quantenmechanik (QM) is the physics of small things. How do they behave and how do they interact with each other? Conspicuously absent from this framework of QM is why. Why small things do what they do is a question QM leaves alone. Und, if you are to make any headway into this subject, your best bet is to curb your urge to ask why. Nature is what she is. Our job is to understand the rules by which she plays the game of reality, and do our best to make use of those rules to our advantage in experiments and technologies. Ours is not to reason why. Wirklich.

# Classical Physics

The main difficulty in describing particle physics to general public is the fact that it is built on modern physics. Even if you are physics aficionado and did extremely well in your high school physics, what you have learned and loved is classical physics. The difference between classical physics and modern physics is not just more physics, but a completely new way of looking at the reality around us.
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# Reduktionismus

In allen unseren wissenschaftlichen Bemühungen, wir verwenden ähnliche Techniken auf hoher Ebene zu verstehen und zu studieren Dinge. Die am weitesten verbreitete Technik ist Reduktionismus. Es basiert auf der Annahme, dass das Verhalten, Eigenschaften und Struktur von großen und komplexen Objekten kann in ihrer einfacheren Bestandteile zu verstehen. Mit anderen Worten, wir versuchen, das Ganze zu verstehen (das Universum, beispielsweise) in Bezug auf kleinere, reduziert Bestandteile (wie Teilchen).