Results 71 to 80 of about 3,080 (302)

Track of Meteor

Science, 1883
n ...
openaire   +2 more sources

Embodied, Enacted, and Multimodal: Exploring Science Teachers’ Metaphors in Authentic Classroom Contexts

Science Education, EarlyView.
ABSTRACT Over the past decades, science education research has extensively examined the role of metaphors in teaching and learning science. However, much of the existing research has focused on verbal manifestations of metaphors, thereby overlooking aspects of metaphors that may occur in non‐verbal form. This study reconceptualises metaphors as dynamic
Magdalena Kersting, Priscila Kohler, Marianne Ødegaard   +2 more
wiley   +1 more source

An Upper Limit on the Interstellar Meteoroid Flux at Video Sizes from the Global Meteor Network

The Astrophysical Journal
Material arriving at our solar system from the Galaxy may be detected on Earth in the form of meteors ablating in our atmosphere. Here, we report on a search for interstellar meteors within the highest-quality events in the Global Meteor Network (GMN ...
Paul Wiegert, Vanessa Tran, Cole Gregg, Denis Vida, Peter Brown   +4 more
doaj   +1 more source

ON METEORS AND RAINFALL

Journal of Meteorology, 1956
Abstract The correlations of heavy rainfall and of noctilucent clouds with meteor streams are examined with regard to the known facts of meteor astronomy. Photographic and radar observations show that the general influx of sporadic meteors is not greatly enhanced by the occurrence of a meteor stream, and it is unlikely that meteors within the present ...
Fred L. Whipple, Gerald S. Hawkins
openaire   +1 more source

Key Technical Fields and Future Outlooks of Space Manipulators: A Survey

SmartBot, EarlyView.
This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen, Zeyuan Huang, Ying Yan, Xiaokang An, Zhikai Zhao, Jirong Lin, Xiangrong Zhao, Xianyuan Gao, Junyi Zong, Xuewen Jia, Zhipeng Yao, Jianliang Liao, Ning Ji   +12 more
wiley   +1 more source

Meteors, Comets and Meteoric Ionization [PDF]

Nature, 1947
A C B Lovell, J P M Prentice, J G Porter, R W B Pearse, N Herlofson   +4 more
openaire   +3 more sources

Seeding the Solar System with Life: Mars, Venus, Earth, Moon, Protoplanets

Open Astronomy, 2020
In the space of the entire universe, the only conclusive evidence of life, is found on Earth. Although the ultimate source of all life is unknown, many investigators believe Earth, Mars, and Venus may have been seeded with life when these planets, and ...
Joseph Rhawn G., Planchon Olivier, Gibson Carl H., Schild Rudolph   +3 more
doaj   +1 more source

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

Strategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani, Mariano Mastrogiorgio, Giuseppe Carignani   +2 more
wiley   +1 more source

Meteors by radio: getting started [PDF]

, 1999
Publisher's version/PDFA system for detecting meteors by radio is described which is simple and reliable, and thought to be suitable as a science fair project.
Lonc, William, 1930-, William Lonc
core   +1 more source

HYPERBOLIC ORBITS OF METEORS

Odessa Astronomical Publications, 2017
The elements of orbits of the 136 hyperbolic meteors and some their physical characteristics are given.
A. K. Markina, L. Ya. Skoblikova
doaj   +1 more source