darkEnergy   99

« earlier    

Diving deep into the world of emergent gravity | Ars Technica
Getting rid of dark matter would be a big ordeal, so we talk to the man behind the theory.
feedly  cosmology  blackholes  ifttt  Archive  darkEnergy  darkMatter  entropy  generalRelativity  gravity 
may 2017 by otlib
Quantum gas goes below absolute zero
For instance, Rosch and his colleagues have calculated that whereas clouds of atoms would normally be pulled downwards by gravity, if part of the cloud is at a negative absolute temperature, some atoms will move upwards, apparently defying gravity

Another peculiarity of the sub-absolute-zero gas is that it mimics 'dark energy', the mysterious force that pushes the Universe to expand at an ever-faster rate against the inward pull of gravity. Schneider notes that the attractive atoms in the gas produced by the team also want to collapse inwards, but do not because the negative absolute temperature stabilises them.
darkEnergy  absoluteZero  negativeAbsoluteZero  gravity 
january 2017 by cessationoftime
Contents of the Universe
Makeup of the universe notes based on the latest data
cosmology  darkmatter  darkenergy 
november 2016 by darthsunshine
dark matter/dark energy
Notes for data on dark matter and dark energy
darkmatter  darkenergy 
november 2016 by darthsunshine
GAIA Satellite To Find Out If We're Wrong About Dark Energy And The Expanding Universe
By measuring distances to a billion stars in the Milky Way, the GAIA mission can set the distance scale and refine our knowledge of dark energy.
scales_of_universe  darkenergy  A101 
september 2016 by darthsunshine

« earlier    

related tags

13  2012  a101  abell  absolutezero  accelerator  analogue  anthropic  archive  article  astro  astro2010  astronomers  astronomy  astrophysics  battnick  bc20100721  blackholes  bytemarkscafe  chandra  cmb  cold  constant  copernicus  cosmicrays  cosmologicalconstant  cosmology  dark-matter  dark  darkenergy  darkmatter  dimensions  doepfer  early_universe  einstein  energy  entropy  expansion  feedly  feynman  fusion  galaxy  general_relativity  generalrelativity  gravitationallenses  gravity  hardware  hawaii  higgsboson  history  homeopathy  horizon  hubble_law  ifttt  image  important  improbablelife  inflation  interesting  jwst  kipac  lecture  life  list  lss  mathematics  matter  medicine  michaelbrooks  modular  mond  multipleuniverses  nasa  negativeabsolutezero  nerd  news  observatories  origins  papers  paranormal  particle_phys  patriciaburchat  physics  placebo  politics  problems  quantum-mechanics  quantum  quantumgravity  quantummechanics  read  relativity  research  scales_of_universe  science  simulation  slac  sonicstate  space  speculation  supernova  supernovas  synthesiser  synthesizer  telescope  theoretical-physics  theory  tosee  ucl  unexplained  universe  vacuum  video  videos  void  weird  wfirst  wired  wot 

Copy this bookmark: