Results 71 to 80 of about 340,792 (285)
Seeking String Theory in the Cosmos
We review the existence, formation and properties of cosmic strings in string theory, the wide variety of observational techniques that are being employed to detect them, and the constraints that current observations impose on string theory models ...
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A large‐aperture, high focusing efficiency and polarization‐independent THz single‐layer achromatic metalens is reported via discrete multi‐wavelength achromatic design and global optimization algorithm. The fabricated metalens exhibits a largest diameter of 2.21 cm, excellent achromatic performance, extremely high average focusing efficiency (> 46 ...
Xiaoqiang Jiang +7 more
wiley +1 more source
There is No Hop(p)e neboli Blaise Pascal a ambivalence kosmické hrůzy
The essay focuses on the survival of Pascal’s metaphors concerning the cosmic wasteland. It analyzes step-by-step the ways in which authors such as Immanuel Kant, George Milbrey Gould, Herbert George Wells, Thomas Henry Huxley, Howard Phillips Lovecraft,
Zika, Richard, Váša, Ondřej
doaj +1 more source
Comparison of CORSIKA and COSMOS simulations
Ultra-high-energy cosmic rays (UHECRs) refer to cosmic rays with energy above 10^{18} eV. UHECR experiments utilize simulations of extensive air shower to estimate the properties of UHECRs.
Kang, Hyesung +6 more
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A closed‐loop, data‐driven approach facilitates the exploration of high‐performance Si─Ge─Sn alloys as promising fast‐charging battery anodes. Autonomous electrochemical experimentation using a scanning droplet cell is combined with real‐time optimization to efficiently navigate composition space.
Alexey Sanin +7 more
wiley +1 more source
La enseñanza del cosmos: la experiencia de los maestros de cultura bribris y cabécares
En este artículo se realiza una reflexión sobre la relación entre la escuela y los conocimientos ahí transmitidos, en especial la escritura, en los territorios indígenas de Talamanca Bribri y de Alto Chirripó. La escuela primaria empieza en este contexto
Alice Lamounier Ferreira
doaj
Editorial: Regaining Sanity [PDF]
This is the editorial to the special edition of Cosmos and History on 'Regaining Sanity'
Gare, Arran
core
Abstract Three instruments–Raman spectroscopy, attenuated total reflectance–Fourier transform infrared spectroscopy, and focused beam reflectance measurement–were used to detect sensor faults, mixing faults, and unanticipated chemistry in a system of multicomponent slurries.
Steven H. Crouse +2 more
wiley +1 more source
De los mitos de la creación del cosmos, de Quetzalcóatl y de Tollán son los paradigmas que dominan el relato histórico mesoamericano. Los relatos de la creación repiten siempre la historia sobre el ordenamiento del mundo, el origen de los humanos y el ...
Enrique Florescano
doaj
In Breakable Glasses: Toward a Naturalist Orientational Cosmology [PDF]
The author develops the formula, "that process that gives rise to all that exists," as a specification of the cosmos within which human life may find meaningful, ethical orientation.
Bernard, Danièle +2 more
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