# poetry: apropos di ritmiche: "sul dilatare a spiroide dei lembi segugi ..."

<< N. sul dilatare a spiroide dei lembi segugi //

venati a trapunte //

di slento flusso probante che slitta //

(...)

2135 - strappati dal punto stabile. Jun 04, 2007

http://inkpi.blogspot.it/2007/06/2135-strappati-dal-punto-stabile.html

# acad: cinnamon buns, pretzels and bagels to explain unusual phases or states of matter, by Thors

<< What do a pretzel, a lock of hair and a scream have in common? >>

<< Thors Hans Hansson, a member of the Nobel physics committee, uses a cinnamon bun, a pretzel and a bagel to explain the field of topology, a highly specialised mathematics field studying unusual phases or states of matter >>

<< Referring to the two holes in the pretzel, the one hole in the bagel, and the shape of a bun, Hansson demonstrated that topology explains how a material's shape can be completely deformed into a new one without losing its core properties >>

Ilgin Karlidag. Bagels, pretzels, Boo! How to explain science Nobels. Oct 1, 2017

https://m.phys.org/news/2017-10-bagels-pretzels-boo-science-nobels.html

# bot-nano: programmable molecular machines to assemble molecular machines

<< It has been convincingly argued that molecular machines that manipulate individual atoms, or highly reactive clusters of atoms, with Angstrom precision are unlikely to be realized >>

AA << detail an artificial molecular machine that moves a substrate between different activating sites to achieve different product outcomes from chemical synthesis >>

AA << anticipate that future generations of programmable molecular machines may have significant roles in chemical synthesis and molecular manufacturing >>

Salma Kassem, Alan T. L. Lee, et al.  Stereodivergent synthesis with a programmable molecular machine. Nature 2017; 549: 374–378. Sep 21. doi: 10.1038/nature23677

http://www.nature.com/nature/journal/v549/n7672/full/nature23677.html

Scientists create world’s first ‘molecular robot’ capable of building molecules. Sep 20, 2017

http://www.manchester.ac.uk/discover/news/scientists-create-worlds-first-molecular-robot-capable-of-building-molecules/

CAMERA - Chemistry at Manchester Explains Research Advances

https://m.youtube.com/channel/UCXf3CFkyGpa2eIeT5wz_Prw/featured

# chem: self-assembly in icosahedral (3D) nanoscale architectures

<< capsid proteins of spherical plant viruses can self-assemble into well-organized icosahedral three-dimensional (3D) nanoscale multivalent architectures with high monodispersity and structural symmetry >>

Narayanan KB, Han SS. Icosahedral plant viral nanoparticles - bioinspired synthesis of nanomaterials/nanostructures. Adv Colloid Interface Sci. 2017 Aug 31. pii: S0001-8686(16)30366-9. doi: 10.1016/j.cis.2017.08.005.

https://www.ncbi.nlm.nih.gov/m/pubmed/28916111/

# gst: to estimate a minimum size of an earthquake

<< Although the overall size of an earthquake cannot be predicted from the rate of energy release, a minimum size can be estimated. Estimating this minimum size could add valuable seconds to early earthquake warning algorithms >>

M.A. Meier, J. P. Ampuero, T. H. Heaton. The hidden simplicity of subduction megathrust earthquakes.  Science Sep 22,  2017: 357 (6357): 1277-81. doi: 10.1126/science.aan5643

http://science.sciencemag.org/content/357/6357/1277

# astro: FRBs [Fast Radio Bursts]; you can imagine the sky is filled with flashes like paparazzi

<< If we are right about such a high rate of FRBs [Fast Radio Bursts] happening at any given time [at least one FRB is going off somewhere every second], you can imagine the sky is filled with flashes like paparazzi taking photos of a celebrity >> Anastasia Fialkov

Fast radio bursts may be firing off every second. Sep 21, 2017

https://m.phys.org/news/2017-09-fast-radio.html

Anastasia Fialkov, Abraham Loeb. A Fast Radio Burst Occurs Every Second throughout the Observable Universe. The Astrophysical Journal Letters, 2017; 846 (2). doi: 10.3847/2041-8213/aa8905 Publ Sep 8, 2017.

http://iopscience.iop.org/article/10.3847/2041-8213/aa8905/meta

# chem: strange transitions: tying a crystal into a knot

<< Single crystals are typically brittle, inelastic materials. Such mechanical responses limit their use in practical applications, particularly in flexible electronics and optical devices >>

AA << describe single crystals of a well-known coordination compound—copper(II) acetylacetonate—that are flexible enough to be reversibly tied into a knot >>

Anna Worthy, Arnaud Grosjean, et al. Atomic resolution of structural changes in elastic crystals of copper(II) acetylacetonate. Nature Chemistry. doi: 10.1038/nchem.2848. Aug 28, 2017

http://www.nature.com/nchem/journal/vaop/ncurrent/full/nchem.2848.html

<< crystals exhibit traditional characteristics of not only hard matter, but soft matter like nylon >> John McMurtrie

<< Under strain the molecules in the crystal reversibly rotate and reorganise to allow the compression and expansion required for elasticity and still maintain the integrity of the crystal structure >> Jack Clegg

Bendable crystals tie current thinking in knots. Aug 29, 2017.

https://m.phys.org/news/2017-08-bendable-crystals-current.html