focus

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References

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King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Eye. Eyelash. Eyeball. Vision.

7 Vestigial Features of the Human Body

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

Globe South America, map

What’s the Difference Between Hispanic and Latino?

Ruminant. Deer. Red deer. Cervus elaphus. Buck. Stag. Antlers.

9 of the World’s Deadliest Mammals

Cleopatra hieroglyphic carving the Ancient Egyptian queen Cleopatra. Wall of the Temple of Horus at Edfu, Egypt.

What Did Cleopatra Look Like?

Bog body. Head of Tollund Man. Died at about age 30-40, Dated to about 280 BCE early Iron Age. Found Bjaeldskovdal bog Denmark in 1950 near Elling Woman. Most well preserved bog body to date. Human remains mummified in natural peat bogs. mummy, embalm

9 Noteworthy Bog Bodies (And What They Tell Us)

focus

seismology

Also known as: hypocentre

Learn about this topic in these articles:

earthquakes

In earthquake: Principal types of seismic waves
…the Earth, is called the focus, or hypocentre. The point at the surface immediately above the focus is known as the epicentre.
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epicentre

In epicentre
…the underground point (called the focus) where fault rupture commences, producing an earthquake. The effects of the earthquake may not be most severe in the vicinity of the epicentre. The epicentre can be located by computing arcs from each of three or more seismic observatories, with the arcs’ radii proportional…
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