linkedin post 2021-04-17 03:58:03

Uncategorized
EXTRAORDINARY LEADERSHIP. “New Zealand aims to create smoke-free generation. Proposals include making sale of cigarettes to anyone born after 2004 illegal. The plan will begin the final demise of tobacco products in this country.” I usually do not comment on politics, but this is different. https://lnkd.in/dNJBbAP View in LinkedIn
Read More

linkedin post 2021-04-17 03:56:07

Uncategorized
COSMOLOGY. “In the physical universe, the vector mode dies out fast due to the expanding spacetime. In the analogue gravity/cosmology situation addressed here, even though we are dealing with a contracting spacetime, we are at liberty to ignore the vector mode in the first place without altering the curl-free and non zero trace condition of χij.” https://lnkd.in/dusKMKM View in LinkedIn
Read More

linkedin post 2021-04-17 03:54:34

Uncategorized
A WORLD IN A GRAIN OF SAND. “The two scalar modes Ψ and Φ, relevant for cosmological observations in the physical universe, play an important role in the gravity analogue for granular matter. We fo- cus on the effect of external stress perturbations on the changes in the analogue spatial geometry.” https://lnkd.in/dusKMKM View in LinkedIn
Read More

linkedin post 2021-04-17 03:53:24

Uncategorized
SHEAR STRESS. “Clearly, the shear stress has been applied on an already spontaneously jammed isotropic state, to show that anisotropic structure formation results because of this external stress perturbation. This implies that, in the gravity analogue as per the Rachaudhuri equation, θ(0) < 0, so that we have a convergent geodesic congruence.” https://lnkd.in/dusKMKM View in LinkedIn
Read More

linkedin post 2021-04-20 04:50:12

Uncategorized
ON THE MASSIVE AND THE MINUTE. “Now, physicists at MIT’s LIGO Laboratory have searched for ultralight bosons using black holes — objects that are mind-bending orders of magnitude more massive than the particles themselves. According to the predictions of quantum theory, a black hole of a certain mass should pull in clouds of ultralight bosons, which in turn should collectively slow down a black hole’s spin. If the particles exist, then all black holes of a particular mass should have relatively low spins.” https://lnkd.in/dRWpnua View in LinkedIn
Read More

linkedin post 2021-04-18 01:33:56

Uncategorized
SO ENDS this second weekend on a remarkable, fresh and imaginative essay. Physicists today feel free to speculate with untethetered imagination, and force the possibilities. For we live in a universe that is extreme, with many exotic states if matter, and probably dimensions we cannot begin to imagine. It is time to be bold, tap the dreamworld, and push the boundaries of the possible, because -- much of it probably is! https://lnkd.in/dusKMKM View in LinkedIn
Read More

linkedin post 2021-04-20 04:47:53

Uncategorized
COSMIC MONSTERS. “Magnetically charged black holes “can last for the age of the universe for masses larger than about 0.1 kg if unit charge magnetic monopoles have the mass they have in a GUT theory. They can have very large magnetic fields that restore the electroweak symmetry around the black hole. This region can be relatively large.” https://lnkd.in/dX6Fbwx View in LinkedIn
Read More