" Our team analyzed the mass content of the enormous, merging galaxy cluster MACSJ0025.4-1222 using the Hubble and Chandra Space Telescopes to disentangle dark and normal matter—that is, matter made up of baryons, common subatomic particles such as protons and neutrons. The new results confirm those obtained from the 2006 study of the Bullet Cluster, providing a clear view of dark matter, separated from ordinary baryons.
The study examines the aftermath of a merger between two giant sub-clusters, each a whopping million billion times the mass of the sun. As these collided at millions of miles per hour, most of the normal, baryonic matter in each—in the form of hot, X-ray emitting gas—interacted with the similar matter in the other and slowed down, like a diver encountering the water’s surface. In contrast, the dark matter did not interact significantly and passed through without disruption. This difference caused the dark matter to sail ahead, leaving the X-ray luminous, baryonic matter lagging behind.”
Bullet Cluster & Gravitational lensing
Jazz and Quantum Gravity ?
L.Bernstein on Beethoven’s 5th. Very interesting analysis.
"Isaac Newton - brilliant rational mathematician or master of the occult? This innovative biography reveals Newton as both a hermit and a tyrant, a heretic and an alchemist. Magical images mix with actors and experts to bring alive Britain’s greatest scientific genius in his own words.
Isaac Newton The Last Magician Biography reveals newton BBC full documentary 2013”
Science and Creativity, Lisa Randall