Encyclopedia
- space and time
Basic Information
(Apr 1942–）
Location: Shanghai, China
1. Introduction
Tsao Chang (Chinese: 张操 born 1942 in Shanghai, China) is a Chinese-American physicist.[1]
Chang has taught physics and conducted research on the theory of space and time more than 50 years in China and the United States.
2. Personal Life
Tsao Chang was born in Shanghai China on April 22, 1942. He met his wife Bei Lei Dong while attending Fudan university. They were wed in September 1967. They had 2 boys. Their eldest son, John Zhang was a successful business man and on the board for several public companies.[2] Chang’s younger son, James Zhang is founder and CEO of Concept Art House, a video game developer.[3]
3. Physics Career
In 1965 Chang graduated from Fudan University, China with a degree in Nuclear physics. Chinadaily's interview
Tsao Chang has taught electrodynamics and modern physics in China and the United States .
From 1980—1982, he was a visiting scholar in the Physics department at the University of Massachusetts Amherst.
He taught in the Department of Physics, Shanghai University of Science and Technology from 1982—1985.
In 1985—1989, Chang was a visiting professor in Utah State University and the University of Alabama in the United States.
His research areas cover superluminal neutrinos and the theory of relativity.http://en.scientificcommons.org/tsao_chang
He has produced more than 30 research papers and two books.[4]
From 1989—2002 he conducted research on space physics in the University of Alabama.
In an international conference "in early 1985, T. Chang predicted neutrinos may be Superluminal particles".[5]
Since 2002, his research has centered on the theory of space and time. He has published six research papers and two books.
4. Speed of Alternating Electricity
After decades of research, Chang's research on superluminal motion reached a significant breakthrough in February 2015. Chang published his paper: "Measurement of Time Delay of Alternating Electric Field in Wires" in an open access journal Modern Physics with graduate student K. Liao and Dr. Jing Fan. They published three more papers later. The latest research paper was published in November 2015, which has a title: "The Speed of Alternating Electricity Can Be 20 Times Faster than the Speed of Light."
The article states that alternating power source generates electromotive force, which generates potential differences and longitudinal electric fields in a circuit almost instantaneously. The word 'speed of alternating electricity' refers generally to the speed of electric energy from an alternating power source to an electric load (such as a resistor) in an electric circuit. The movement of electrons through a conductor in the presence of potential and an electric field is very slow. When a DC voltage is applied, The drift speed is on the order of millimeters per hour.
In recent experiments, .[6] three researchers have compared the difference of time delay of electric signals for 1-3 MHz frequency by means of two metal wires with different lengths. Our experimental results show that in less than 2 MHz frequency region, the speed of modulated alternating electric signals in the metal wire of 6 meter is more than 20 times of the speed of light. This is a type of effect of non-locality for electrical field in metal wires.[6]Chang2015paper
5. Published Works
- Chang, Tsao. (1979) "A New Approach to Study the Superluminal Motion".[7]
- Chang, Tsao. (1986) "Does a Free Tachyon Exist?" In paper concluded that the neutrino is a very possible candidate for a tachyon.[8]
- Chang, Tsao. (1979). "Maxwell Equations in Anisotropic Space", Phys. Lett. 70A.[9]
- Chang, Tsao with D.G. Torr and D.R. Gagnon. (1988). "A modified Lorentz Theory as a Test Theory of Special Relativity", Found. Phys. Lett, 1 (1988),353.[10]
- Chang, Tsao and D. G. Torr. (1990). "A Tentative Explanation of Cosmological Red Shift", Paired and Interacting Galaxies, NASA Conference Publication 3098, P.491.[11]
- Chang, Tsao and G-j. Ni. (2002). "An explanation of negative mass-square of neutrinos", Fizika B (zagreb), 11 (2002) 49.[12]
- Chang, Tsao. (2002). "Parity Violation and Neutrino Mass", Nuclear Science Technology, vol. 13, No. 3. (2002) 129.[13]
- Ni, G-j. and Tsao Chang. (2001). "Is Neutrino a Superluminal Particle?"[14]
- Chang, Tsao. "Parity Violation and a Preferred Frame"[15]From arxiv.org
- Chang, Tsao. "A Dirac-type equation for spacelike neutrinos."[16]
- Chang, Tsao. "A proposed gravitodynamic theory."[17]
- Chang, Tsao. (2011). "Research on the theory of space and time - Try to go beyond the theory of relativity" (in Chinese).[18]
- Chang, Tsao. et al., "An Experiment to Measure the Speed of Alternating Electricity",[19]
- Chang, Tsao. "The Speed of Alternating Electricity Can Be 20 Times Faster than the Speed of Light"[20]
Measurement of Time Delay of Alternating Electric Field in Wires
The content is sourced from: https://handwiki.org/wiki/Biography:Tsao_Chang
References
- Tsao Chang Hudong. (Chinese). Retrieved December 26, 2011. http://www.hudong.com/wiki/%E5%BC%A0%E6%93%8D
- "John Zhang: Executive Profile & Biography - Businessweek". https://www.bloomberg.com/research/stocks/private/person.asp?personId=37373073&privcapId=100495355. Retrieved 2016-01-06.
- "About Us". http://www.conceptarthouse.com/about-us/. Retrieved 2016-01-06.
- Tsao Chang, "Research on the theory of Space and Time" http://www.sstlp.com/book/detail.aspx?Id=2192
- T. Chang,"Does a free tachyon exist ?", Proceedings of the Sir A. Eddington Centenary Symposium, (1986), Vol. 3, Gravitational Radiation and Relativity", p.431.
- 2015 An Experiment to Measure the Speed of Alternating Electricity
- T. Chang, "A New Approach to Study the Superluminal Motion", J. Phys. (1979), A 12, L203;
- T. Chang, "Does a free tachyon exist ?", Proceedings of the Sir A. Eddington Centenary Symposium, (1986), Vol. 3, "Gravitational Radiation and Relativity", p. 431.
- T. Chang, Maxwell Equations in Anisotropic Space, Phys. Lett. 70A, (1979),1.
- T. Chang, D.G. Torr and D.R. Gagnon, A modified Lorentz Theory as a Test Theory of Special Relativity, Found. Phys.Lett, 1 (1988),353.
- T. Chang and D. G. Torr, "A Tentative Explanation of Cosmological Red Shift", Paired and Interacting Galaxies, NASA Conference Publication 3098, P.491 (1990).
- T. Chang and G-j. Ni, "An explanation of negative mass-square of neutrinos", e-print hep-ph/0009291 , Fizika B (zagreb),11 (2002) 49.
- Tsao Chang, Parity Violation and a Preferred Frame, arXiv:quant-ph/0204002.
- G-j. Ni and T. Chang, "Is Neutrino a Superluminal Particle ?", hep-ph/0103051 (2001); G-j. Ni Journal of Shanxi Normal University, 29, No.3 (2001) 1.
- T. Chang, Parity Violation and Neutrino Mass ,Nuclear Sci. Tech., vol.13, No. 3. (2002) 129. arXiv:hep-ph/0208239
- Tsao Chang, A Dirac-type equation for spacelike neutrinos, arXiv:quant-ph/0103124.
- T. Chang, A proposed gravitodynamic theory, arXiv:gr-qc/9703049
- Tsao Chang, "Research on the theory of Space and Time --- Try to go beyond the theory of relativity", Shanghai Science and Tech. Press, (2011-10).
- T. Chang. et al,An Experiment to Measure the Speed of Alternating Electricity, Physical Science International Journal, 7(4): 234-240, 2015. Article no.PSIJ.2015.071, ISSN 2348-0130, SCIENCEDOMAIN international
- https://www.hanspub.org/journal/PaperInformation.aspx?paperID=14804
