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COEVOLUTION. “Overall, we conclude that the models presented here provide a plausible attempt to understand the complex scenario of BH and galaxy co-evolution, and to predict the downsizing trend within the framework of hierarchical clustering. However, there still remain many uncertainties in modelling the formation and evolution of BHs, which hopefully ongoing and future observational facilities will help to constrain.” (BH = black hole). https://lnkd.in/d9JV8md View in LinkedIn

THE FAILURE OF THE SMALL. “As an implicit consequence of massive black hole seeds, we have also assumed that seeds are not able to form in dark matter haloes below 2 × 10(11) M⊙, as cold gas might not be able to collapse in these haloes due to their shallow potential wells. This simultaneously reduces the number of faint AGN at high redshift, in better agreement with observations.” (AGN = active galactic nuclei; M⊙ = solar masses). https://lnkd.in/d9JV8md View in LinkedIn

The trunks of the plane trees that face north grow algae and serve as a country compass. View in LinkedIn

EDUCATION IS BROKEN. “Synthesis is a simulation-based learning experience built around complex team games. Students work through case studies, simulations, and game-based challenges. While playing, kids teach themselves how to win. In the process, they learn new problem-solving skills.” Batch students by ability not age, teach the problem not the tool. https://lnkd.in/dP5rMwf View in LinkedIn

OBJECTIVE. “This paper considers a wide range of "quasi-classical" models for the non-singular transition from an evaporating black hole to a white hole and the evolution of the white hole.” https://lnkd.in/dUKnus8 View in LinkedIn

A NEW PAPER starts consideration today, entitled: “Black holes to white holes II: quasi-classical scenarios for white hole evolution”, by James M. Bardeen, Physics Department, at the University of Washington. This is as we transition from a lengthy journey into black hole astrophysics to their birthchild, the white hole. https://lnkd.in/dUKnus8 View in LinkedIn

The combined intelligence of the hive far exceeds the individual. View in LinkedIn

DARK AGES. “It is important to realize that in physics today, we have no knowledge of what energy is.” Nor 95% of the universe which is dark matter and dark energy! " "(Richard P. Feynman, Nobel laureate) https://lnkd.in/dREWUUD View in LinkedIn