I was not one of those many AAPT members to whom Lawrence Ruby refers, that in 2007 received Elisha Huggins' booklet containing the first chapter of a physics textbook espousing the new educational philosophy of teaching special relativity first in elementary physics.

1.
E. R. Huggins, “Teaching Relativity in Week One,” based on the CD text Physics2000, and “Principle of Relativity,” Chapter 1 of Physics 2000; available at http://Physics 2000.com.
2.
Lawrence
Ruby
, “
Teaching special relativity without calculus
,”
Phys. Teach.
47
,
231
232
(April
2009
).
3.
Paul A. Tipler, Physics (Worth Publishers, Inc., New York, 1976), p. 686.
4.
Edwin F. Taylor and John Archibald Wheeler, Spacetime Physics (Copyright 1963, W. H. Freeman and Company, New York, 1966), p. 108.
5.
Lev B.
Okun
, “
The concept of mass
,”
Phys. Today
42
,
31
36
(June
1989
).
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