Why is the sky blue? Facts you should know
- What is it that makes diseases caused by viruses and bacteria hard to treat?
- Why do we put salt on sidewalks when it snows?
- Why is the sky blue?
- Did dinosaurs and humans ever exist at the same time?
Read answers to these questions, and others, by leading scientists. For example:
Influenza viruses and others continually change over time, usually by mutation. This change enables the virus to evade the immune system of its host so that people are susceptible to influenza virus infection throughout their lives. Bacteria mutate in the same way and can also become resistant if
overtreated with antibiotics.
by Helle Gawrlewski, Johnson & Johnson (and the article author’s mother)
According to a recent National Science Board survey, 90 percent of Americans are interested in science, but only 15 percent consider themselves well-informed. In high schools, only 60 percent of students complete a general biology class, while only 40 percent complete a general chemistry class and a scant 27 percent complete a physics class, according to the National Center for Education Statistics.
February 2nd, 2008 at 6:01 pm
“Seventy percent of the plants identified by the U.S. National Cancer Institute as useful in the treatment of cancer are found only in rainforests…”