towards an analysis of errors made by university students ... - DSpace

.one time widely accepted view that if once life had come
into
:the universe in any way whatsoever, it would rapidly spread from
planet to planet and from one planetary system to another until
the whole universe teemed with life; space now seems too
cold,
and planetary systems
too far apart.
T6P - Text number 6 -
Physics
"CAN LIFE EXIST ON THE PLANETS? (Part two)
Our .terres tri a 1 life must in all probability have
-originated on the earth itself. What we should like to know is
^whether it originated as the result of some amazing
accident
or success ion of coincidences or whether it is the normal event
'.for inanimate matter to produce life in due course when the
physical environment is suitable. We look to the biologist for
-the answer, which so far he has not been able to produce. ...
Apart from the certain knowledge that life exists
on earth, our only definite knowledge is that, at the best,
:life must be limited to a ti ny fraction of the
universe.
Millions of millions of stars exist which support no life, which
have never done so and never will do so. Of the planetary,
systems in the sky, many must be entirely lifeless, and in
others life, if it. exists at all, is probably
limited to a few
rof the planets .
T7P - Test number 7 .- Physics
THE QUANTUM THEORY OF
RADIATION
-(From-chapter VII of AN APPROACH TO MODERN
PHYSICS