Latest articles by Elizabeth Peterson
OCD: Symptoms & Treatment
Obsessive-compulsive disorder, or OCD, is a mental disorder characterized by persistent thoughts and ritualistic behaviors that interfere with daily life and relationships.
Why Does the Moon Shine?
The moon shines because its surface reflects light from the sun. But because of its orbit around Earth, the lighting goes through phases.
Are Warts Contagious?
Warts are growths on the surface of the skin caused by human papillomavirus (HPV).
What Do Turtles Eat?
Turtles, like the humans who love them, are a diverse bunch. There are over 300 species of this ancient reptile, and each one has its own preferred diet.
Why does coffee make you poop?
It's proven that the caffeine in coffee stimulates the brain, but there's something in a cup of joe that can also jump-start the other end of the body. That's right: Coffee can make you poop.
Who Invented Air Conditioning?
The desire and need to cool the air goes back millennia. Air conditioning began in ancient Egypt and was perfected in the 20th century.
Why Do Dogs Have Whiskers?
For humans, touch is a sense most often associated with the fingers. But man's best friend, the dog, touches the world a different way — with his face.
Who Invented the Steam Engine?
The steam engine may seem like a relic of the past. But without this game-changing invention, the modern world would be a much different place.
Who Invented the Printing Press?
Johannes Gutenberg revolutionized printing technology by adapting the presses used for winemaking.
Does Coca-Cola contain cocaine?
Historical evidence suggests that the original Coca-Cola did, in fact, contain cocaine.
Fused Deposition Modeling: Most Common 3D Printing Method
FDM printers use a thermoplastic filament, which is heated to its melting point and then extruded, layer by layer, to create a three dimensional object.
How far away is lightning?
Here's a simple method for calculating your distance from a lightning strike.
