ScienceIQ.com

Will That Be One Hump or Two?

Camels are highly adaptive to their environments. Often called the ships of the desert, they have been domesticated by humans for thousands of years, as beasts of burden and as transportation. What gives these unique mammals such an advantage in some of the most inhospitable climates on Earth? Many point to their humps where they store all that ...

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Humps
Mathematics

How To Calculate The Area Of A Cylinder

Understanding how to find the area of a cylinder is easy if one first visualizes the cylinder and breaks its surface down into component pieces. To do this, first take a good look at the most common ... Continue reading

AreaOfACylinder
Engineering

Cool Fuel Cells

Astronauts have been using them for power aboard spacecraft since the 1960s. Soon, perhaps, they'll be just as common on Earth--powering cars, trucks, laptop computers and cell phones. They're called ... Continue reading

CoolFuelCells
Medicine

How a Horse Can Save Your Life?

Most people who have been vaccinated with the smallpox vaccine never really question what exactly was injected into their body. If they did, they might be surprised, and maybe thank a horse or two. ... Continue reading

HorseLife
Biology

Can You Drink Too Much Water?

Body fluids account for over 70% of an average adult's body. Our body fluids are composed of water and substances called electrolytes. Dissolved in water, these materials develop tiny electrical ... Continue reading

TooMuchWater

Mother Nature's Own Brand of Bioterror

BioterrorWe've been hearing a lot about smallpox lately, as a possible bioterror attack. But Mother Nature has her own brand of bioterror. Smallpox has been with us for about ten thousand years, since the earliest agricultural settlements in Africa. From there it spread to Egypt and on into Europe and Asia. Smallpox victims have a high fever, ache all over, and get a terrible rash that usually leaves disfiguring scars. Often the rash spreads to the eyes, leading to blindness. As many as half of the victims die.

Pharoah Ramses V of Egypt appears to have died of smallpox, as his well-preserved mummy shows the characteristic scarring. The Greek historian Thucydides noted that people who survived smallpox were later immune to it (but the Greeks did not invent vaccination). Epidemics of smallpox hastened the decline of the Roman empire.

But the most catastrophic smallpox epidemics befell the natives of the New World, for smallpox had not reached the Western Hermisphere until the Europeans brought it in the 15th century. The native americans, having no experience with it, had no resistance and died by the thousands. Since none of them had ever had it before, nobody was immune, and everybody in the community got sick. It is thought that as many as 90% of the native american population died of European diseases, including smallpox.