Flights, crossings, launches

Originally Posted in Hebrew on June 17, 2007 The usual way of classifying flights or crossings today is to classify them according to two types of flights or crossings:A. Those that are based on transmission.B. The ones that are based on jump.The first-order transitions use the substitution of one-space atoms in the second-space atoms. Thisהמשך לקרוא "Flights, crossings, launches"