It has been known for some time that AC electromagnetic fields of less than 50 Hz can alter the EEG traces of human subjects. Here AC signals of 10 Hz or 20 Hz were applied to the temples of a human subject while recording the monitored EEG traces. It was found that there were significant variations in the traces in both amplitude and frequency during the test period.
Here is the link to the article:
The resistivity of human skin depends on the layer within which it is measured. The DC characteristics are fairly well known; here, an experiment that measures the transport of AC signals through the skin is described.
Here is the link: http://www.gemarsh.com/wp-content/uploads/ELECTRICAL-PROPERTIES-OF-THE-SKIN-TO-AC-VOLTAGES-OF-VARYING-FREQUENCY.pdf
From its ancient Greek roots to Lovelock’s groundbreaking 1979 book, the concept of Gaia has evolved to depict Earth as a single, intricate organism sustaining life through the interplay of its organic and inorganic elements. From the Hadean epoch, where life’s emergence radically transformed our planet, to the present, Earth stands as our sole model for understanding life’s potential on other Earth-like worlds. While the lifeforms that evolve on Earth-like planets would not necessarily be identical to those on Earth, they must satisfy the same constraints. These constraints are the central subject of this book.
Here is a link to the book: https://www.worldscientific.com/worldscibooks/10.1142/13897#t=aboutBook
Modern developments in nonequilibrium thermodynamics have significant implications for the origins of life. The reasons for this are closely related to a generalized version of the second law of thermodynamics recently found for entropy production during irreversible evolution of a given system such as self-replicating RNA. This paper is intended to serve as an introduction to these developments.
To Appear in the Canadian Journal of Physics. DOI: 10.1139/cjp-2020-0013
http://www.gemarsh.com/wp-content/uploads/Thermodynamics-The-Origin-of-Life.pdf
Modern developments in nonequilibrium thermodynamics have significant implications for the origins of life. The reasons for this are closely related to a generalized version of the second law of thermodynamics recently found for entropy production during irreversible evolution of a given system such as self-replicating RNA. This paper is intended to serve as an introduction to these developments.
NONEQUILIBRIUM THERMODYNAMICS AND THE ORIGIN OF LIFE – Corrected and Updated
Dolphin cognitive capabilities have been explored by investigating their neural anatomy, their social behavior in the wild, and by analysis of their complex vocalizations used for communication and environmental perception. After a brief introduction to dolphin hearing, sounds, and neurophysiology, and an even briefer discussion of sound propagation in the ocean, an analysis is given of some representative vocalizations. It is also shown that Mathematica offers a tool for easily synthesizing dolphin-like sounds that could be as basis for constructing a pidgin type language for human-dolphin communication.
This book is an attempt to show the majesty of the immense journey from the coming into being of the universe to the emergence and evolution of life. While it begins with the birth of the universe and the subsequent formation of the matter making up the stars and planets, it is the four and a half billion years since the formation of our sun and its planets that are the main focus of the book.
Part I covers the coming into existence of the universe; Part II the beginning of life on the early Earth; Part III the emergence of consciousness and intelligence; and Part IV, the immense journey of the universe beyond Earth. Part V addresses the problems raised by the emergence of higher-order consciousness in human beings as captured by the phrase “the human condition”.
The late 19th and 20th centuries brought a revolution in the scientific understanding of the universe around us, one whose effects are still being felt around the world as it forces people to change their conception of the universe and the place of human beings within it. Perhaps the greatest remaining mystery is the nature of consciousness itself, which has been a subject of human inquiry for at least the last several millennia. In this essay, I discuss the nature of thought and consciousness and argue that that consciousness and thought are natural biological phenomena.
Updated version (4 April 2016)
The phrase “the human condition” has come to mean many things to different people, but here it simply refers to what history has shown to be the inescapable features of being human. In this essay we take a look at current trends, what they foretell for the remainder of this century, and how the characteristics that make us human might affect the evolution of those trends.
PDF: THE HUMAN CONDITION
USA Today Magazine (November 2012)
“. . . The conflict here and abroad really is between two fundamentally different and mutually exclusive world views; one based on science, reason, and observation; the other on an interpretation of Scripture that dates back to past periods of religious intolerance.”