Friday, March 28th, 2008 Posted in Biology | No Comments »
The Latin term "hydroponic" literally means working water. It basically means growing plants in any medium other than soil. All plants require inorganic nutrients such as potassium, sulphur, magnesium and ... Read more..Friday, March 28th, 2008 Posted in Biology | No Comments »
The simple answer is because plants stop producing chlorophyll toward the end of summer. The carotenoids, the pigments in the photosynthesizing cells, are present during the growing season but are ... Read more..Friday, March 28th, 2008 Posted in Biology | 2 Comments »
John Scopes was a high school biology teacher who was brought to trial in Dayton, Tennessee in 1925 for teaching the theory of evolution. He was protesting a state law ... Read more..Friday, March 28th, 2008 Posted in Biology | No Comments »
While many people associate this phrase with Darwinism, and rightfully so, it was actually coined by the English sociologist Herbert Spencer (1820-1903). It is one of the principles of Darwin's ... Read more..Thursday, March 27th, 2008 Posted in Earth Science, Ecology | 1 Comment »
CFCs are hydrocarbons in which some or all of the hydrogen atoms have been replaced by fluorine atoms. They are often used as refrigerants, solvents and until recently as propellants ... Read more..Thursday, March 27th, 2008 Posted in Dinosaurs | No Comments »
We'll never know for certain, but the smallest dinosaur yet discovered is the Microraptor, a small bird-like theropod which is thought to have been about 18-24 inches long. Prior to ... Read more..Thursday, March 27th, 2008 Posted in Dinosaurs | No Comments »
It is believed that the Brachiosaurus is the largest dinosaur that ever lived. It is also the largest species in which a whole skeleton has been discovered. This skeleton is ... Read more..