“Plato holds a special place among them. His detailed interpretation of matter as a hollow space surrounded by regularly shaped bodies was… — Henning Genz Existence Copy Share Image
“The gravitational field of Earth will determine the direction of the rock that you drop from your hand. Aristotle concluded, from the… — Henning Genz Copy Share Image
“The quarks were originally introduced as mathematical symbols-the carriers of certain properties that would facilitate mathematical understanding of elementary particles. This very… — Henning Genz Learning Copy Share Image
“Real systems are, in this sense, "excitations of the vacuum"- much as surface waves in a pond are excitations of the pond's… — Henning Genz Real world Copy Share Image
“There is no suchthing as absolutely empty space. All space contains fluctuating fields and particles. Even in the emptiest space that the… — Henning Genz Empty space Copy Share Image
“The hotter a substance, the faster and the less ordered its molecular motion, and the larger the momentum with which molecules collide.… — Henning Genz Copy Share Image
“What really transcends our understanding is the mechanism that permits these oscillations of abstract field quantities to carry energy. We know this… — Henning Genz Empty space Copy Share Image
“But it forms the backdrop for Thales' idea that the world arose from the waters. This ur-ocean however to him is not… — Henning Genz Copy Share Image
“To sum up: Electron and positron annihilate as a pair, in a particle-antiparticle collision. Their energy heats up the vacuum; when the… — Henning Genz Copy Share Image
“We have good reason to believe that space and time begin to merge into quantum mechanical uncertainty at distances this small; they… — Henning Genz Black hole Copy Share Image
“If they were as we described them, the existence of black holes would contradict the principles of thermodynamics. One of these principles… — Henning Genz Black hole Copy Share Image
“This question about the reason we do not observe any quantum mechanical uncertainty in the appearance of flies or stars was never… — Henning Genz Quantum mechanics Copy Share Image
“INTO AND OUT OF THE VACUUM To make real particles out of the virtual ones that are part of the vacuum fluctuations,… — Henning Genz Quantum mechanics Copy Share Image
“As we showed in figure 5, water molecules oscillate about their rest positions in ice. Quantum mechanics says that this remains true… — Henning Genz Empty space Copy Share Image
“The elementary particles are often dubbed the atoms of our day. That may or may not be correct. It might be an… — Henning Genz Empty space Copy Share Image
“By reversing the steps that we took to advance from the concept of substance to that of Materia Prima, we can imagine… — Henning Genz Empty space Copy Share Image
“In another experiment Guericke connects a small glass sphere that's filled with air with a larger evacuated one. As he opens the… — Henning Genz Copy Share Image
“The interpretation of apparent long-distance action by means of continuously propagating effects was vigorously asserted by Isaac Newton. In his wake, the… — Henning Genz Copy Share Image
“The parameter we hold responsible for the ability or inability of a particle to move with a velocity other than that of… — Henning Genz Quantum mechanics Copy Share Image
“The freezing of water is called a phase transition. The temperature at which this happens is called a critical temperature. A different… — Henning Genz Copy Share Image
“Of all conceivable reasons for some sequence of physical events Plato recognizes only its ultimate aim as worthy of attention. The world… — Henning Genz Empty space Copy Share Image
“Recall our discussion of the pendulum. Its position at a given instant does not fix its subsequent behavior. Suppose a photograph shows… — Henning Genz Habits Copy Share Image
“At a temperature of 10^10 degrees, the energy of the photons of the electromagnetic/thermal radiation becomes that needed for the creations of… — Henning Genz Copy Share Image
“THE GOLDSTONE THEOREM It doesn't matter for our discussion that the broken symmetry of our world chooses a particular direction not in… — Henning Genz Copy Share Image
“Protons and neutrons interact strongly with each other because their building blocks do so. The exchange particles of the strong color interaction… — Henning Genz Building blocks Copy Share Image
“Now let's assume that there is an external Mass acting gravitationally on some system that we observe. Then there are two possibilities:… — Henning Genz Copy Share Image
“In microscopic systems-such as in an atom, a molecule, a crystal-this minimal energy means internal motion of its constituents. It is independent… — Henning Genz Empty space Copy Share Image
“Every object is embedded in the vacuum with which physics surrounds it. This means we don't observe the naked object-rather, we see… — Henning Genz Copy Share Image
“We don't really know whether there are black holes that emit observable amounts of Hawking radiation. Nevertheless, there is no way to… — Henning Genz Black hole Copy Share Image
