Today I presented a talk at COOL'25 workshop, including these simulations of a ring that can store a three-dimensional Coulomb crystal for 1/16 of a second, or more than 24000 turns.   The crystal stays solid and bunched without cooling or RF.   #accelerators #physics <p><a href='posts/202510/post-20251029-181436-a.png'><img src='posts/202510/post-20251029-181436-a.png' loading='lazy' /></a></p><p><a href='posts/202510/post-20251029-181436-b.png'><img src='posts/202510/post-20251029-181436-b.png' loading='lazy' /></a></p>