ScienceIQ.com

Mixed Up In Space

Imagine waking up in space. Groggy from sleep, you wonder ... which way is up? And where are my arms and legs? Throw in a little motion sickness, and you'll get an idea of what it can feel like to be in space. Consider, for example, 'up' and 'down.' On Earth we always know which way is up because gravity tells us. Sensors in our inner ears can feel ...

Continue reading...

MixedInSpace
Biology

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 ... Continue reading

Humps
Geology

A Voggy Day On The Big Island

On the morning of February 8, 2000, Harry Kim, Director of Hawai`i County Civil Defense, asked radio stations on the Island of Hawai`i to broadcast a special message concerning the thick, acrid haze ... Continue reading

AVoggyDayOnTheBigIsland
Engineering

X-Ray Astronomy vs. Medical X-Rays

It's natural to associate the X-rays from cosmic objects with an X-ray from the doctor's office, but the comparison is a bit tricky. A doctor's X-ray machine consists of two parts: an X-ray source at ... Continue reading

XRayAstronomyvsMedicalXRays
Geology

Fossil Energy - The Basics

Contrary to what many people believe, fossil fuels are not the remains of dead dinosaurs. In fact, most of the fossil fuels we find today were formed millions of years before the first dinosaurs. ... Continue reading

FossilEnergyTheBasics

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.