Idiophone An idiophone is any musical instrument that creates sound primarily by the instrument as a whole vibrating—without the use of strings ormembranes. It is the first of the four main divisions in the original Hornbostel-Sachs scheme of musical instrument classification. The early classification of Victor-Charles Mahillon called this group of instruments autophones. Most percussion instruments that are not drums are idiophones. Hornbostel-Sachs divides idiophones into four main sub-categories
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spectrophotometer at 605nm‚ and the rate of linear decrease in absorbance over time represents the number of electrons flowing through the electron transport chain reflecting the relative rate of photosynthesis. Chloroplasts only absorb certain wavelengths in the electromagnetic spectrum‚ the blue followed by the red are the two main wavelengths absorbed (Melis‚ et al.‚ 1987). The experiment was designed to investigate which wavelengths would result in the highest rate of photosynthesis. Chlorophyll a
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Effect of Varying Temperatures: The enzyme catalyzed reaction rate during varying incubation temperatures are plotted on Figure. 6. As the temperature increases the rate increases‚ but as the temperature reaches 49oC it begins to drop. When the plot of the logarithm of the rate is used against the inverse of the temperature kelvin’s the Arrhenius equation is used to calculate the activation energy. The range in orange is between 16.5 - 37oC and the activation energy is calculated to be 9332kcal/mol
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improvements on the telescope allowed him to make the first observations of Saturn’s rings and to discover its moon‚ Titan. CARL SAGAN Sagan was an American astronomer. He lived from 1934-1996. He may not have been a great scientist in comparison to others‚ but he is one of the most famous astronomers. Sagan not only made important scientific studies in the fields of planetary science‚ he also managed to popularize astronomy more than any other individual. His charismatic teaching
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Galileo Galilei Galileo Galilei (Pisa‚ February 15‚ 1564 Arcetri‚ January 8‚ 1642)‚ was a Tuscan astronomer‚ philosopher‚ and physicist who is closely associated with the scientific revolution. His achievements include improving the telescope‚ a variety of astronomical observations‚ the first law of motion‚ and supporting Copernicanism effectively. He has been referred to as the "father of modern astronomy‚" as the "father of modern physics‚" and as "father of science." His experimental work
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Speed of Light Determining the speed of light is something that has been a very long and trying process. No one scientist could determine such a thing. Galileo was the first noted scientist to attempt experimentation on the speed of light. Other famous scientist‚ such as‚ Roemer‚ Foucault‚ Fizeau‚ Michelson‚ and Einstein added their own discoveries to the collage of information gathered through the years. Every scientist performed their experiments differently based on the knowledge and ability
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coagulate‚ the independent was the temperature of the water bath and the control was the deionised water and milk solution. These variables allowed for the experiment to be conducted accurately‚ with unexpected results. This is due to the enzymes being most active at 60ᵒC‚ it was that results were going to be most active at the 41ᵒC which is close to human body temperature. When we compare the enzyme in the low temperatures to the enzymes in the higher temperature we observed that the enzymes were
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…………………KEY……………………… Matter & Energy Period …………. Skills 1. classifying types of matter 2. interpreting particle diagrams 3. identifying physical & chemical properties of matter 4. separating Mixtures 5. converting Temperatures 6. identifying physical & chemical changes in matter Skill #1: Classifying types of matter - refer to your notes and RB p. 1-2 Classify each of the following with the combination of terms listed below. pure substance – element mixture
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Differences in ability of facial and object image recognition and its suggestibility by image rotation Abstract The ability of face and object image recognition and it s suggestibility by image rotation was examined on first year Psychology students of University of London (N=59). “Subject” participants from assigned pairs were presented with a series of images including faces and objects where 50% of the images were inverted. “Subject” participants had
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reaction affect the rate of reaction. This experiment focused on how temperature affects the rate of reaction for the reaction of alka-seltzer and water. The rate of a reaction is a value calculated to figure out how fast a chemical reaction occurs. There are three factors that can be changed that will affect the rate of a chemical reaction: surface area‚ concentration‚ and temperature. Temperature specifically affects the rate of a chemical reaction‚ because when the temperature is changed‚ the kinetic
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