Hovercraft fill air chambers as they hover over sea or land. A plenum is essentially a type of ventilation or air transfer system. These air-filled
Category: Science
scientist with beakers Diffusion theory, also known as diffusion of innovations theory, is a theory concerned with the spread of innovation, ideas, and technology across
The tesseract is often used as a visual representation of the fourth dimension. The fourth dimension is generally understood to refer to a hypothetical fourth
A house destroyed by an earthquake. The question of predicting earthquakes and knowing if the Big One is coming is still a mystery. In recent
A Russian rocket, propelled by hydrogen peroxide. Yes, hydrogen peroxide can be used as rocket fuel and, in fact, has been the propellant of choice
There are about 30,000 calories in a gallon (about 4 liters) of gasoline, which is enough to power a person for about 20 days, depending
A diary can be used as a tool in qualitative research. A qualitative experiment is an experiment that uses a qualitative technique to determine the
One of the most common natural monomers is glucose, a simple carbohydrate. A monomer is a repeating structure or unit within a type of large
Jaffa, Israel, an ancient city that has been studied by many archaeologists. Most archaeological theories deal with many of the same techniques, evidence, and historical