Except those works were published, just not in Germany. It was local, and not related to the material. What is proposed here is a global suppression of an idea, because "they" do not want you to know "the truth."
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In rereading the review, I have to wonder — if Dr. Morse is not schooled in physics, how does he know he learned a lot from reading the book? I mean, if you "learn" that the earth is banana-shaped and that sheep's bladders may be employed to prevent earthquakes, have you actually learned anything?