Dizzy Now – and Still Spinning Up

Turing: Then, Now and Still Key

This paper looks at Turing’s postulations about Artificial Intelligence in his paper ‘Computing Machinery and Intelligence’, published in 1950. It notes how accurate they were and how relevant they still are today. This paper notes the arguments and mechanisms that he suggested and tries to expand on them further. The paper however is mostly about describing the essential ingredients for buildi...

Spinning up asymptotically flat spacetimes

We present a method for constructing stationary, asymptotically flat, rotating solutions of Einstein’s field equations. One of the spun-up solutions has quasilocal mass but no global mass. It has an ergosphere but no event horizon. The angular momentum is constant everywhere beyond the ergosphere. The energy–momentum content of this solution can be interpreted as a rotating string fluid. PACS n...

what’s up with clostridium difficile infection now?

Spinning up an extragalactic neutron star.

growth. Colonization of pigskin or mouse skin with these protective commensals reduced S. aureus replication. Furthermore, autologous bacterial transplant in a small number of atopic dermatitis patients drastically reduced S. aureus skin burden. This commensal skin transplant has already been approved by the U.S. Food and Drug Administration, and a clinical trial is under way. —LP Sci. Transl. ...

Spinning up the polymorphs of calcium carbonate

Controlling the growth of the polymorphs of calcium carbonate is important in understanding the changing environmental conditions in the oceans. Aragonite is the main polymorph in the inner shells of marine organisms, and can be readily converted to calcite, which is the most stable polymorph of calcium carbonate. Both of these polymorphs are significantly more stable than vaterite, which is th...