GEN: Knowledge doubles every ? years?

[Johanna Halbeisen <johanna@MASSED.NET>]

info.  I know one of you probably knows it without even looking it up.  I
need it to impress upon our long range planning committee the need for a
dynamic library program.  (Is is seven years?  right now it feels like
seven months.)

---------------------
Johanna Halbeisen
Woodland Elementary School (preK-4)
80 Powder Mill Rd.
Southwick, MA 01077
johanna@massed.net

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