What is Life?
Δημοσιεύτηκε στις 3 Φεβ 2015
Guy J. Consolmagno, SJ, Planetary Scientist, Vatican Observatory Research Group
Throughout
history, our definition of 'life' reflects our assumptions about how
the Universe works – and why we ask the question. The ways different
human cultures, ancient and current, have talked about life provide some
sense of how we have defined life, and illustrate the aspects of life
that fascinate us. Many cultures used life as an analog to explain the
movement of winds and currents, or the motions of the planets. Today we
use those mechanical systems as analogs for life. Ultimately, we may not
really know what life is until we have discovered more than one
independent example of it on places other than Earth – we need many
diverse examples before we can generalize. But without a definition of
what we're looking for, and why we're looking, we may have a hard time
recognizing life when we find it.
Jan 26 2015
Throughout
history, our definition of 'life' reflects our assumptions about how
the Universe works – and why we ask the question. The ways different
human cultures, ancient and current, have talked about life provide some
sense of how we have defined life, and illustrate the aspects of life
that fascinate us. Many cultures used life as an analog to explain the
movement of winds and currents, or the motions of the planets. Today we
use those mechanical systems as analogs for life. Ultimately, we may not
really know what life is until we have discovered more than one
independent example of it on places other than Earth – we need many
diverse examples before we can generalize. But without a definition of
what we're looking for, and why we're looking, we may have a hard time
recognizing life when we find it.
Jan 26 2015
Κατηγορία
Άδεια
- Τυπική άδεια YouTube
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου