From: valls on
In the 27Sep1905 Einstein’s paper where he derives the universal mass-
energy relationship from the Conservation Principle of Energy, we can
read: “H and E are energy values of the same body referred to two
systems of co-ordinates (S1 and S2) which are in motion relatively to
each other, the body being at rest in S1. Thus it is clear that the
difference H-E can differ from the kinetic energy K of the body, with
respect to the other system S2, only by an additive constant C, which
depends on the choice of the arbitrary additive constants of the
energies H and E. Thus we may place H=K+(E+C).”
Interpreting this text in its 1905 historical context, the last
expression is the Conservation Principle of Energy
Total Energy (H)=Kinetic Energy (K)+Potential Energy (E+C)
Does any reader know in the 1905 context any other kind of energy E
(different from the potential one) with an arbitrary additive constant
C?
Does any reader know in the 1905 context any other expression for the
Conservation Principle of Energy different from
Total Energy=Kinetic Energy+ Potential Energy?
We are using the copy of the paper that can be found in the following
link:
http://www.fourmilab.ch/etexts/einstein/E_mc2/www/