# Tag Info

1

If we take neutron star material at say a density of $\sim 10^{17}$ kg/m$^{3}$ the neutrons have an internal kinetic energy density of $3 \times 10^{32}$ J/m$^{3}$. So even in a teaspoonful (say 5ml), there is $1.5\times10^{27}$ J of kinetic energy (more than the Sun emits in a second, or a billion or so atom bombs) and this will be released instantaneously. ...

2

The correct comparison for a neutron star is with a cinder spat out of the fire. The cinder will glow brightly for a short period of time and then fade rapidly. Such is the fate of neutron stars, because although born at $10^{11}$ K in the heart of a supernova, they have an extremely low heat capacity. Contrary to common belief - neutron stars are not ...

15

In an "ordinary" gas of protons and electrons, nothing would happen - we call that ionized hydrogen! However, when you squeeze, lots of interesting things happen. The first is that the electrons become "degenerate". The Pauli exclusion principle forbids more than two electrons (one spin up the other spin down) from occupying the same momentum eigenstate ...

Top 50 recent answers are included