Close to sunset and sunrise bright stars like Sirius or even Canopus can be spotted with the naked eye as long as one knows the exact position in which to look. Historically, the zenith of naked-eye astronomy was the work of Tycho Brahe (1546â1601).
The egg sac, irregular in shape, about the size of a tennis ball, is often seen in the garden, suspended by silk threads. Spider bite in southern Africa: diagnosis and management: the diagnosis of spider bite, especially when the patient is unaware of having been bitten, can be difficult
1 Egg white-Protects the embryo (chick)/Provides embryo (chick) with water. 2  Chalaza-Protects the embryo (chick) from vibrations (also acts like a seat belt). 3  Egg Yolk-Provides food for the embryo (chick). 4  Air sac-a sac of air at the bottom of the shell.