Results 21 to 30 of about 17,392 (258)

Possible Transfer of Life by Earth-Grazing Objects to Exoplanetary Systems

open access: yesLife, 2020
Recently, a 30-cm object was discovered to graze the Earth’s atmosphere and shift into a Jupiter-crossing orbit. We use the related survey parameters to calibrate the total number of such objects.
Amir Siraj, Abraham Loeb
doaj   +1 more source

“Stars Falling to Earth”—Mental Models of Comets and Meteors

open access: yesEducation Sciences
The present study examines students’ conceptions of comets and meteors using qualitative research methods. A total of 35 semi-structured interviews were conducted with students in grades 7 and 9 in Germany, aiming to gain a richer understanding of how ...
Malte S. Ubben   +2 more
doaj   +1 more source

Evaporation of high speed sporadic meteors [PDF]

open access: yesAtmospheric Chemistry and Physics, 2004
Recent measurements conducted at the Arecibo Observatory report high-speed sporadic meteors having velocities near 50 km/s. The results seem to indicate a bimodal velocity distribution in the sporadic meteors (maxima at ~20 km/s and ~50 km/s).
E. Murad, C. Roth
doaj  

Meteor showers of comet C/1917 F1 Mellish

open access: yes, 2010
December Monocerotids and November Orionids are weak but established annual meteor showers active throughout November and December. Analysis of a high quality orbits subset of the SonotaCo video meteor database shows that the distribution of orbital ...
Asklöf   +37 more
core   +1 more source

Laparoscopic Colorectal Surgery in the Era of Robotics: Evolution, Eclipse, or Equilibrium?

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
ABSTRACT Minimally invasive colorectal surgery has undergone a remarkable transformation over the past three decades. Laparoscopy, once viewed with skepticism, is now firmly established as a standard approach, supported by robust randomized trials demonstrating oncologic safety and improved recovery compared to open surgery.
Amanjeet Singh   +3 more
wiley   +1 more source

A Historical Analysis of the Quranic Concept of Lapidating Devils with Meteors [PDF]

open access: yesReligious Inquiries, 2016
The Quranic concept of lapidating devils with meteors has received a variety of interpretations throughout Islamic history. In the past, it was interpreted to mean heavenly meteors thrown at devils in order to prevent them from giving ear to heavenly ...
Jafar Nekoonam   +1 more
doaj  

Autonomous spectrographic system to analyse the main elements of fireballs and meteors

open access: yesEarth, Planets and Space, 2018
We present a meteor observation system based on imaging CCD cameras, wide-field optics and a diffraction grating. This system is composed of two independent spectrographs with different configurations, which allows us to capture images of fireballs and ...
Francisco Ángel Espartero   +4 more
doaj   +1 more source

Cuando la política fue temporal. Periódicos con nombre de meteoros en la prensa rioplatense decimonónica (1820-1830)

open access: yesNuevo mundo - Mundos Nuevos, 2021
During the 1820s and 1830s in the River Plate, a series of newspapers named after atmospheric phenomenons came to light: El Pampero (1822 y 1829), El Aguacero (1823), El Rayo (1826, 1831, 1833), El Granizo (1827), El Relámpago (1831, 1833), El Trueno ...
María Laura Romano
doaj   +1 more source

Large Language Model‐Based Chatbots in Higher Education

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
The use of large language models (LLMs) in higher education can facilitate personalized learning experiences, advance asynchronized learning, and support instructors, students, and researchers across diverse fields. The development of regulations and guidelines that address ethical and legal issues is essential to ensure safe and responsible adaptation
Defne Yigci   +4 more
wiley   +1 more source

The return of the Andromedids meteor shower [PDF]

open access: yes, 2012
The Andromedid meteor shower underwent spectacular outbursts in 1872 and 1885, producing thousands of visual meteors per hour and described as `stars fell like rain' in Chinese records of the time.
Brown, Peter G.   +3 more
core   +1 more source

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