View source for Chandru Mouli Iyer

{{Infobox scientist
| name = Chandru Mouli Iyer
| alt = Chandru Mouli Iyer
| fields = [[Chemical Engineer]], [[special relativity]]
| workplaces = Techink Industries, Noida
| residence = Noida, India
| nationality = Indian
| known_for = [[special relativity]]
}}

'''Chandra Mouli Iyer''', known as '''Chandru Iyer''', is an Indian engineer and independent researcher who has written on [[special relativity]] and [[electrodynamics]]. He is affiliated with Techink Industries in Noida, India, and has published a number of papers examining the [[Lorentz transformation]], the one-way speed of light, and related questions in the foundations of relativity.

==Biography==

Iyer holds a master's degree in engineering and has spent more than three decades working in industry in design and managerial roles. He is based in Noida, India, where he is associated with Techink Industries. Alongside his professional work, he has maintained a long-standing interest in the subject of relativity, and in particular in special relativity, pursuing the topic through self-study and correspondence with others sharing similar interests. Much of his research has been carried out in collaboration with G. M. Prabhu of Iowa State University.

==Scientific contributions==

Iyer's writings address the interpretation and internal consistency of special relativity. He has argued that the historical rejection of the [[Lorentz]] theory of relativity in favour of the Einsteinian formulation is not sufficiently well founded, and has examined the role of clock synchronization conventions in the appearance of [[length contraction]] and [[time dilation]].

His papers include treatments of the decomposition of Lorentz transformations, the ordered addition of Lorentz boosts, the reversal of the time order of interactive events, the clock (twin) paradox, the behaviour of tachyons, and the one-way speed of light. In "A constructive formulation of the one-way speed of light" (with G. M. Prabhu), he presented a formulation in three-dimensional Euclidean space consistent with the [[Michelson–Morley experiment]], showing that the harmonic mean of the light speeds in opposite directions equals ''c'' and that a synchronization shift proportional to distance along the line of motion renders the speed constant in all directions.

His work has appeared in peer-reviewed journals including the ''American Journal of Physics'', the ''European Journal of Physics'', and ''Physics Essays'', as well as in preprints on arXiv. Selected papers include:

* "Ordered addition of two Lorentz boosts through spatial and space-time rotations" (with G. M. Prabhu, 2007)
* "Reversal in the time order of interactive events: the collision of inclined rods" (''European Journal of Physics'', 2006)
* "Differing observations on the landing of the rod into the slot" (''American Journal of Physics'', 2006)
* "Lorentz transformations with arbitrary line of motion" (with G. M. Prabhu, 2007)
* "Uncertainties inherent in the decomposition of a transformation" (''European Journal of Physics'', 2008)
* "A variation of the clock paradox and a distinguishing feature of an inertial frame" (with G. M. Prabhu, 2007)
* "A constructive formulation of the one-way speed of light" (with G. M. Prabhu, ''American Journal of Physics'', 2010)

==Abstracts==

* 2008 - "[[Comment on The Principle of Relativity
and the Indeterminancy of Special
Relativity]]"

==External links==

* [https://arxiv.org/a/iyer_c_1 Chandru Iyer on arXiv]

[[Category:Scientist|Iyer Chandru]]
[[Category:Relativity|Iyer Chandru]]