Week 5 iLab Report Angelo Scianni DeVry University NETW360: Wireless Technologies and Services Observing the Wireless Spectrum Submitted to: Professor: Yassin Date: 8/5/14 Observing the Wireless Spectrum Introduction Guidelines: It’s always best to introduce a paper to the reader. It sets the tone and provides an overview of what will be covered and what the goals are. What is the intent of the lab? What issues are addressed? Why is it important? What are the goals? In this lab
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a physics professor at Columbia University‚ suggests a clock could be made from a technique he developed in the 1930’s called atomic beam magnetic resonance. 1949 Using Rabi’s technique‚ NIST (then the National Bureau of Standards) announces the world’s first atomic clock using the ammonia molecule as the source of vibrations. 1952 NIST announces the first atomic clock using cesium atoms as the vibration source. This clock is named NBS-1. 1954 NBS-1 is moved to NIST’s new laboratories
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Activity 1.2.3 – Perspective Sketches Answer Key Purpose If you can stand on a straight road and look down the road‚ it appears to you the sides of the road begin to look as if they are narrowing to one point in the center of the road vanishes when the road meets the horizon. If the road is straight enough and long enough‚ the sides of the road not only look like they are converging to a single point‚ but the road seems to appear to vanish as it meets the horizon. A similar effect happens if
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Democritus Democritus ( 460 a.c.– 370 a.c.) was an Ancient Greek philosopher born in Abdera‚ Thrace‚ Greece. He was an influential pre-Socratic philosopher and pupil of Leucippus‚ who formulated an atomic theory for the universe. His early deductions about the composition of the basic component of nature led him to believe in unseen and uncuttable particles ‚ called atomos. This Greek philosopher wondered how he could be sitting in one part of his
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Week 1 iLab Report . DeVry University NETW360: Wireless Technologies and Services OPNET Preparation and Spread Spectrum Transmission Comparison Submitted to: Professor: Date: OPNET Preparation OPNET Preparation Paste your Windows Explorer screenshot that shows your Citrix NETW360 directory structure here. An example screenshot appears in your Week 1 iLab tab. Spread Spectrum Transmission Comparison Introduction to Spread Spectrum Transmission Guidelines What is it? Why
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Atomic structure: scientists 1. Democritus: 1st person to think of atom (500 BCE)- philosopher Atom is the smallest piece of an element that has same properties as the element. 2. Lavisier: Law of conservation of mass/ matter • Mass can’t be created or destroy; same amount of stuff 3. Joseph Proust: Law of constant composition (law of definite Proportions) • A compound is always made of the same elements in the same ratio. 4. John Dalton: English school teacher who derived the atomic theory
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Atomic theory is the idea that matter is made up of small particles made of atoms. The atomic theory first had 5 points which were stated by John Dalton who came up with it. The first one was that all elements were made up of small units called atoms. The second one was that all atoms of a given element are identical to each other. Third‚ all the atoms were different from all the other atoms. Fourth‚ atoms of different elements combined together in equal numbers to form compounds. Fifth and final
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1. a) Democritus reasoned that if matter could be infinitely divided‚ it was also subject to complete disintegration from which it can never be put back together. However‚ matter can be reintegrated. b) In Greek‚ the prefix "a" means "not" and the word "tomos" means cut. Our word atom therefore comes from atomos‚ a Greek word meaning uncuttable. All matter is composed of atoms‚ which are bits of matter too small to be seen. These atoms CANNOT be further split into smaller portions. 2. At
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The purpose of this lab was to find the empirical formula for magnesium oxide. To find this formula‚ a strip of Magnesium ribbon was burned in a crucible over a flame from a bunson burner. After the strip caught fire multiple times with the cover on‚ and 10 drops of distilled water were added‚ and the crucible was lightly heated. The crucible was then weighed and the mass recorded. Calculations were performed and the mole ratio of Mg to O was recorded. The results of other lab groups performing
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Objective: Find the standard molar enthalpy of combustion for magnesium. Manipulated Variables- volume of HCl‚ length of magnesium strip‚ mass of magnesium oxide‚ Controlled Variable- type of calorimeter (Styrofoam cup) Responding Variable- change in temperature Procedure: 1. Cut out 3 pieces of magnesium strips each with lengths of maximum 5 centimeters. 2. Measure and record the lengths of the magnesium. 3. Scrub the magnesium strips with steel wool to clean out impurities. 4. Pour
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