71–80 of 111 posts
>filmed at up to 40 billion frames per second that's quite a feat on anyone's watch
how many frames per seconds are our eyes recording at?
This is many orders of magnitude more than that.
This is what's wrong with model based "science".
Since the article doesn't do a good job of explaining what a time crystal is , here's my attempt at summarizing the Wikipedia article [0]. Normally, a system which is driven by an external frequency oscillates at the same, or a multiple of the driving frequency. This is because the external conditions are symmetric under a time translation (i.e. a delay) by the period duration. This symmetry is normally preserved by…
Since the article doesn't do a good job of explaining what a time crystal is , here's my attempt at summarizing the Wikipedia article [0]. Normally, a system which is driven by an external frequency oscillates at the same, or a multiple of the driving frequency. This is because the external conditions are symmetric under a time translation (i.e. a delay) by the period duration. This symmetry is normally preserved by…
Every time the discussion of time crystal comes up, a simple analogy can explain what it is. Regular crystal has repeatable structure in space, i.e. its lattice is the same shape over and over again across in space. Time crystal is the kind of material that has repeatable structure across time, at the lowest energy state. It just means it changes its shape periodically over time. An example of that is quartz crystal…
Is it feasible to create my own time crystals? Or acquire one?
I would love to add a time crystal to my existing space crystal collection, even if it requires some sort of support to maintain the driving frequency.
I haven't read the paper yet, but it sounds like I could apply a particular frequency to a strip of nickel-iron alloy and practically achieve such an effect?
Do any physicists here know whether that would be feasible?
Earlier quoted context omitted.
Every time the discussion of time crystal comes up, a simple analogy can explain what it is. Regular crystal has repeatable structure in space, i.e. its lattice is the same shape over and over again across in space. Time crystal is the kind of material that has repeatable structure across time, at the lowest energy state. It just means it changes its shape periodically over time. An example of that is quartz crystal…
Would it be accurate to say that the "Vibration" or nuclear-spin flipping doesn't emit energy or is neutral in the thermodynamic sense?
Earlier quoted context omitted.
Every time the discussion of time crystal comes up, a simple analogy can explain what it is. Regular crystal has repeatable structure in space, i.e. its lattice is the same shape over and over again across in space. Time crystal is the kind of material that has repeatable structure across time, at the lowest energy state. It just means it changes its shape periodically over time. An example of that is quartz crystal…
Would it be accurate to say that the "Vibration" or nuclear-spin flipping doesn't emit energy or is neutral in the thermodynamic sense?
why aren't electrons spinning round an atom called "time particles"? Technically by the time they run out of energy, the universe will have died so they are "super time particles".
Earlier quoted context omitted.
From my very limited knowledge of physics, time crystals can theoretically oscillate forever without any excitation at their ground state, though laws of theromodynamics are not broken and energy cannot be extracted from their oscillations. In a normal crystal oscillater, power is needed to keep the crystal oscillating.
While this may be that they can oscillate forever, measuring it is an act of removing energy from it.
You can also measure some things in ways that add exactly 0 energy. If some quantum system absorbs exactly nothing of a certain wavelength, that tells you something about the system.
Earlier quoted context omitted.
I would say that gravitational waves break the idea that empty space is symmetrical
Gravitational waves have momentum, energy and even mass, so I wouldn't call a box full of them empty.
Energy and momentum, sure. But not mass. Same as light.