The researchers, who report their work in Chinese Physics Letters, explain that a trade-off always exists between the energy density, cycle performance, rate capability and safety of lithium-ion ...

Very soon after the Big Bang, the universe enjoyed a brief phase where quarks and gluons roamed freely, not yet joined up ...

That's the conclusion of a new paper published in the journal Physics Letters B, due for print publication ... is that our galaxy sits in a low-density region of the universe — that most of ...

In a new study published in Physical Review Letters, scientists have estimated a new lower bound on the mass of ultra-lightweight bosonic dark matter particles.

So the extreme-density cells recently tested in Beijing ... The paper is available in the "rapid publication" journal Chinese Physics Letters.

It often has a negative energy density, creates repulsive gravitational ... Regular black holes from pure gravity, Physics Letters B (2025). DOI: 10.1016/j.physletb.2025.139260 ...

Save guides, add subjects and pick up where you left off with your BBC account. The questions in this quiz are suitable for GCSE physics students studying density, volume and investigating density.

And the sort of low-density regions those models predict would ... Some physicists believe that there must be some "new physics" driving the disparity — something we don't understand about ...