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All About History Books
The Chronicle of Abbot Ralph of Coggeshall describes the reigns of Kings Henry II, Richard I, John and Henry III, providing a wealth of information about their lives and the events of the time. Ralph's work is detailed, comprehensive and objective. We have augmented Ralph's text with extracts from other contemporary chroniclers to enrich the reader's experience. Available at Amazon in eBook and Paperback.
Earth is in Planets.
Earth ...
has a mass of 5,792,000,000,000,000,000,000,000 Kg.
has a diameter at the Equator of 12,756 km.
has circumference at the Equator of 40,075 Km.
is spinning around its axis at 1,700 Km per hour.
spins around the Sun every 365.2564 days travelling distance of 940,000,000 Km at an average speed of 107,208 Km per hour.
Earth Atmosphere. A layer of gases that surround the Earth. The atmosphere is around 100 Km deep. Three quarters of the atmosphere is contained within the first 11 Km.
The Atmospehere has a number of layers:
Mesosphere: 50 to 80 km
Stratosphere: 12 to 50 km
Troposphere: 0 to 12 km
Humans
Homo Erectus
Homo Erectus emerged around 2 millions years ago.
Homo Neanderthalis
Homo Neanderthalis is an extinct species of @@Humans that lived in Europe and Asia until around 40,000 years ago. It is unclear what caused their extinction.
1829. Dutch naturalist Philippe-Charles Schmerling discovered the remains of a Neaderthal skull at Grottes d'Engis, Belgium. He believed the skull to be of a Homo Sapiens.