Delta Epsilon
Actually the best place to get more information on "Sigma Alpha Epsilon" would be the related English Wikipedia page. The article is entitled accordingly "Sigma Alpha Epsilon".
Look closely at the space between gamma and epsilon.
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Then you know that the medium is vacuum in free space.And by the way, it's "epsilon naught", not "epsilon not"."Naught" means "zero", and "epsilon naught" means " ε0 " .
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There is no star with that name. Many stars have names that start with "Epsilon", followed by the genitive of a constellation, e.g. "Epsilon Cruxis", "Epsilon Geminorum", etc. If its epsilon segin cassiopeia, it is 520L/Y(light years) away from earth.
Epsilon Minus was created in 2000.
Lancia Epsilon was created in 1911.
The Riddles of Epsilon was created in 2005.
Phi Epsilon Chi's motto is 'Yo soy Phi Epsilon de corazón'.
Delta Sigma Epsilon was created on 1914-09-23.