INTRODUCTION

The human body is one of most comprehensive “window” into the universe. Few excerpts from an article at Forbes “How Did The Universe Make Our Existence Possible?” (July 2020):

  • We can learn a lot about the history of the Universe just by looking at each of our own bodies. A fully grown adult human is an incredibly complex system, made up of trillions of cells and somewhere in the neighborhood of 1028 atoms: the building blocks of all matter on Earth. The scientific story of what it takes to make a human teaches us an enormous about about not only the evolution and history of life on Earth, but of the entire Universe as well.
  • Oxygen is the most abundant element in our body, followed by carbon, hydrogen, nitrogen and calcium. All told, there are at least 56 different elements from the periodic table that make up at least 0.1 milligrams of a typical human, with both light and heavy elements playing important roles in the body’s biological activities.

[to be continued ..]