ScienceIQ.com

A River of Sand

Next time you're at the beach or in the desert, climb a sand dune in bare feet on a windy day. Stand still in various places on the gently sloping windward side. Watch how wind-driven sand grains appear to jump an inch or two above the dune, stinging your ankles and making the dune's surface appear to be in constant motion ever upward toward the ...

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RiverOfSand
Biology

How Do Cats See in the Dark?

Cats are nocturnal; therefore they need good night vision. Their eyes are able to function with 1/6 the light humans require. During the day, their eyes must be able to function without being ... Continue reading

CatEyesight
Geology

A Big, Big Wave

A tsunami (pronounced 'soo-nah-mee') is a series of waves of extremely long wave length and long period generated in a body of water by an impulsive disturbance that vertically displaces the water. ... Continue reading

ABigBigWave
Engineering

Inkjet Printers

At the heart of every inkjet printer, whether it is a color printer or just B&W, there is an ink cartridge that gets shuttled back and forth across the page, leaving a trail of letters or colors. Upon ... Continue reading

InkjetPrinters
Biology

What We Learned From The Songbirds

Once, neuroscientists believed that our complement of nerve cells was created prenatally and during the first years of life, and that no new neurons could be generated. Now we know that this belief ... Continue reading

WhatWeLearnedFromTheSongbirds

Fighting Viruses

FightingVirusesViral diseases can be very difficult to treat because viruses live inside the body's cells where they are protected from medicines in the blood stream. Researchers developed the first antiviral drug in the late 20th century. The drug, acyclovir, was first approved by the U.S. Food and Drug Administration to treat herpes simplex virus infections. Only a few other antiviral medicines are available to prevent and treat viral infections and diseases.

Health care professionals treat HIV infection with a group of powerful medicines which can keep the virus in check. Known as highly active antiretroviral therapy, or HAART, the new treatment has improved the lives of many suffering from this deadly infection.

Viral diseases should never be treated with antibiotics. Sometimes a person with a viral disease will develop a bacterial disease as a complication of the initial viral disease. For example, children with chickenpox often scratch the skin sores caused by the viral infection. Bacteria such as staph can enter those lesions and cause a bacterial infection. The doctor may then prescribe an antibiotic to destroy the bacteria. The antibiotic, however, will not work on the chickenpox virus. It will work only against staph. Unfortunately, safe and effective treatments and cures for most viral diseases have eluded researchers, but there are safe vaccines to protect you from viral infections and diseases.