People in equador regions use spices in food preparation for thousands of generations. By using these spices, are they keeping themselves healthy by keeping their food "clean?" My objective is to find out if spices have the ability to kill food-spoilage microorganisms. And if they do, which spices are most effective and by how much?
The mouthwash containing sodium fluoride will work the best because it is an oxidizing agent, which kills bacteria and prevents more sulfur compunds from generating. It differs from the mouthwashes containing zinc, which simply decrease the concentration of sulfur compounds, and the antiseptic mouthwashes that can cause your mouth to be dry.
and hair. Do leather seats or PVC (polyvinylchloride) seats produce more static electricity? Is it our clothes, or our hair that's responsible for generating static charges? For this experiment, the materials tested were cotton, polyester, nylon and hair.
These plans are for the construction of a machine called a Savonius wind turbine. Wind turbines come in two general types, those whose main turning shaft is horizontal and points into the wind, and those with a vertical shaft that points up. The Savonius is an example of the vertical axis type. It consists of two simple scoops that catch the wind and cause the shaft to turn.
The simplest wireless telegraph set consists of a means of generating and controlling a spark which sends out radio waves into the air, and a receiver or detector to detect the radio waves. Probably the simplest way to generate and control a spark is to use a switch (called a telegraph key) to turn on and off a buzzer which generates sparks. The simplest way to receive or detect the radio waves
This page presents a "basement science" experiment which reveals the universality of gravitation by demonstrating the gravitational attraction between palpable objects on the human scale. The experiment deliberately uses only the crudest and most commonplace materials, permitting anybody who's so inclined to perform it. Einstein's 1915 theory of General Relativity explains gravitation
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