Essay Database

often toyed with in science fiction novels. Star Trek's spaceships are propelled by this revolutionary matter with the ability to turn all its mass into pure energy, and scientists today are even investigating the use of antimatter as real fuel. Also,…

problem in the United States because the disease costs million lives and dollars. Osteoporosis, which means "porous bones," is a condition of excessive skeletal fragility resulting in bones that break easily. A combination of genetic, dietary, hormonal,…

affects the freezing point of water. In my science project I wanted to see if salt affected the freezing point of water. I started by doing some experiments. My first experiment was whether tap water or salt water would freeze first. I first started…

a.k.a. radioactive decay, is the steps taken in which the atomic nuclei of unstable isotopes release fast-moving particles and energy. There are three types of radioactive decay: (each based on which kind of radiation released by the nucleus)…

see him? The man in the white robe, walking across the street-'" "Shawn: 'I see him.'" "Crane: 'He's just stepping over them like-'" "Shawn: 'He's coming towards us." "Crane: 'Sir, look, I think we should get out of here, if you don't mind my-' " …

bread, bake a pie, or roast a meat, chemical reaction is taking place. Not only with these foods, but with others such as eggs. Egg proteins change when you heat them, beat them, or mix them with other ingredients. Being able to understand these…

of the most well known scientists from the 1800's. In addition to proposing an accurate three-part atomic theory, he also discovered colour blindness and made many important observations about the characteristics of weather. Less than twenty years…

a given set of Metals Prediction I predict that the order of reactivity for the given set of metals will be Sodium, Magnesium, Zinc, Iron, and Copper. With copper being the least reactive. The Reason for my Prediction Iron is used for ships…

of the following the report is to evaluate four different protein assay procedures and by investigating their advantages and disadvantages, find out which of the assays, if any, is the best. The use of the standard calibration curve is incorporated…

all living things. DNA contains the necessary instructions for protein synthesis and replication. Protein synthesis is the production of protein, which is used by cells or viruses for development. Replication is the process by which DNA copies itself…