Spiders and Their Venom
Spiders, which have been around for about 300 million years, are built differently from insects. They have eight legs, not six, and their bodies are divided into two sections, not three. Entomologists put spiders in the class Arachnida along with mites, ticks,…
Continue reading →
More science facts
Biology
How Biological Clocks Work
Anyone who has traveled has experienced jet lag—that groggy realization that while your day is beginning in…
Medicine
What Is Botulism?
Botulism is a rare but serious paralytic illness caused by a nerve toxin that is produced by the bacterium…
Physics
How Fast is Mach 1?
Mach 1 is the speed of sound. A Mach number is simply the ratio of an object's speed to the speed of sound in…
Geology
What is Geodesy?
Geodesy is the science of measuring and monitoring the size and shape of the Earth. Geodesists basically…