Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Calin Galeriu"'
Autor:
Calin Galeriu
Publikováno v:
The Physics Teacher. 60:284-288
The determination of the speed of sound in air is a classical experiment, usually performed with a resonance tube apparatus. The measured value can be checked against Eq. (1), which describes the temperature dependence of the speed of sound in dry ai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::839405754d56980ebde218c0de27dd51
https://doi.org/10.1119/10.0009993
https://doi.org/10.1119/10.0009993
Autor:
Calin Galeriu
We present an elegant derivation of the Doppler factor in the Lienard-Wiechert potentials of an extended particle, based on a theorem authored by J. L. Synge and dealing with cross-sections through worldtubes.
added one more reference ([3]) and
added one more reference ([3]) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb9bc64a66a7fb80029149b030c48e7d
http://arxiv.org/abs/2103.02652
http://arxiv.org/abs/2103.02652
Autor:
Calin Galeriu
We present an in depth analysis and a new derivation of the Doppler factor in the Lienard-Wiechert potentials, based on geometrical considerations in Minkowski space. We argue that, contrary to a common assumption, the methods used for deriving the D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b7b0ad056b7ba6fe47040429ebe1a45
http://arxiv.org/abs/2101.12337
http://arxiv.org/abs/2101.12337
Autor:
Calin Galeriu
Publikováno v:
The Physics Teacher. 56:618-620
The recent use of Arduino Uno microcontroller boards for automated data acquisition has revolutionized physics education. The Arduino-based physics labs have dramatically lowered the cost of the experimental equipment, while at the same time replacin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd32fc1f8b05d5d0a2b4a3cef18a6cb5
https://doi.org/10.1119/1.5080580
https://doi.org/10.1119/1.5080580
Autor:
Calin Galeriu
As a simple application of special conformal transformations, we derive the electromagnetic field produced by an electric charge in hyperbolic motion. Unlike other purely algebraic derivations, here we develop a more intuitive geometrical description
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d10269cc99a46de1bc7272762a8018ad
http://arxiv.org/abs/1905.12426
http://arxiv.org/abs/1905.12426
Publikováno v:
The Physics Teacher. 53:285-288
The experimental investigation of the charging or discharging of a capacitor through a resistor is of fundamental importance to the study of electricity. Students taking the Physics SAT or the AP Physics C: Electricity and Magnetism test have to prov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49777af83f21a979b5a846c2bff53002
https://doi.org/10.1119/1.4917435
https://doi.org/10.1119/1.4917435
Publikováno v:
The Physics Teacher. 52:157-159
We cannot hope for a new generation of scientists and engineers if we don't let our young students take ownership of their scientific and engineering explorations, if we don't let them enjoy the hands-on cycle of design and production, and if we don'
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::073b2ab6df19d5485e29dc56dc354d4d
https://doi.org/10.1119/1.4865518
https://doi.org/10.1119/1.4865518
Autor:
Calin Galeriu
Publikováno v:
The Physics Teacher. 48:537-540
Making a loudspeaker is a very rewarding hands‐on activity that can be used to teach about electro‐magnetism and sound waves. Several loudspeaker designs have been described in this magazine.1–4 The simplest loudspeaker4 has only a magnet, a co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89db58987e42a5d3e2ea051ddfa90f30
https://doi.org/10.1119/1.3502508
https://doi.org/10.1119/1.3502508
Autor:
Calin Galeriu
Publikováno v:
The Physics Teacher. 51:156-158
It is hard to imagine teaching physics without doing experimental measurements of position as a function of time. These measurements, needed for the determination of velocity and acceleration, are most easily performed with the help of photogates.1,2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81401b29527269274668c86e8c575d7
https://doi.org/10.1119/1.4792011
https://doi.org/10.1119/1.4792011
Publikováno v:
Polyhedron. 22:2325-2329
The structure, susceptibility, and high-field magnetization of μ-quinoxalinecopper(II) dibromide are reported. The compound crystallizes in the space group C2/c as a coordination polymer of neutral Cu2Br4 dimers bridged into chains by quinoxaline mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e18648287d377afed262fcfb30889817
https://doi.org/10.1016/s0277-5387(03)00302-4
https://doi.org/10.1016/s0277-5387(03)00302-4