William Edwards Deming was a master of quality improvement. His demonstration called the “Red Bead Experiment” was an amazingly simple‚ but effective way to highlight some problems in quality management. The example‚ which he used in many of his seminars‚ involved a batch consisting of approximately 80% white beads and 20% red beads. A group of willing workers were trained to use paddles that collected samples of beads for quality testing. The workers showed their paddles to managers who would then
Free Quality management system ISO 9000 PDCA
Many people drink sugary drinks every day‚ but really how bad is it for your teeth? This project shows the repercussions of drinking sugary soft drinks. This experiment tests eight adult teeth in eight different soft drinks for 48 hours. The results are equivalent to not brushing your teeth for two days or constantly sipping on a soft drink for more than an hour. If the sugar and acid particles are left on the teeth‚ then more acid is made by the sugar and the enamel starts to wear away. This can
Premium Nutrition Soft drink Sucrose
Gimme Experimental is a short experiment but tests a very interesting psychology concept: the endowment effect. The endowment effect simply is the expectation that if a person owns something they place a higher value to it. Conversely‚ there is another psychology term called the reverse endowment effect. This is the complete opposite of the endowment effect‚ which means a person would place a higher value for someone else’s possession. Interestingly‚ this experiment does not take long at all. Kids
Premium Psychology Morality Ethics
the Perspex on the rectangle. Ensure that it is straight and lines us with your outline and perpendicular to the normal. 7. The laser light should not be refracted; it should be a straight line (you put the laser perpendicular to the Perspex). 8. Now‚ choose an angle of incidence‚ draw the line and put the laser light over it (it must go through the point of intersection between the normal and the Perspex). 9. Now draw a dot where the laser light emerges from the Perspex (as shown in the
Premium Refraction Angle of incidence Total internal reflection
electrolyte levels will enable better cell function‚ which is needed for muscle endurance‚ among other bodily capabilities when exercising. On the other end Glucose is an important source of energy‚ and water balance is required to maintain blood pressure and proper tissue functions. Even though water contains the required amounts of sodium and potassium‚ water
Premium Metabolism Energy Muscle
Experiment #7 Fall 2014 Dehydration of an alcohol NAME Nick Weinberger POSTLAB 1. Show the mechanism for the dehydration of -tetralol under conditions employed in the lab. Show all intermediates‚ and show electron flow with arrows. 2. What general mechanism most likely applies to this reaction (SN2‚ E2 etc)? E1 3. Why was acid employed in this reaction? The acid was used to protonate the leaving group (OH) to form water which is a much better leaving
Premium Carbon Alcohol Atom
damage to 14 % of its forest trees. In this experiment‚ I will find out what consequences acid rain has on the germination and subsequent growth of cress seedlings. I will use cress seedlings‚ which germinate quickly and can grow a few centimetres in a matter of days and sodium metabisulphite‚ which reacts slowly with water to produce sulphur dioxide gas. The seedlings will have to be in an enclosed system so the sulphur dioxide does not escape. The experiment is a simulation trying to model a powerstation
Premium Sulfur dioxide Water Acid rain
the purer the sample is. Since many compounds have similar melting points‚ a mixed melting point can be taken by mixing samples of the unknown with an authentic sample of the known compound and taken the melting point of the mixture. In this experiment‚ unknown #26 had a melting range of 154°-155°C. After looking at known melting points‚ we expected the unknown to be citric acid. While determining the melting point of the authentic citric acid sample‚ we got a melting range of 153°-160°C. The
Premium Freezing-point depression Melting point Temperature
at the head of B—so that it completes the triangle. If A‚ B‚ and C are vectors‚ it must be possible to perform the same operation and achieve the same result (C) in reverse order‚ B + A = C. Quantities such as displacement and velocity have this property (commutative law)‚ but there are quantities (e.g.‚ finite rotations in space) that do not and therefore are not vectors. The other rules of vector manipulation are subtraction‚ multiplication by a scalar‚ scalar multiplication (also known as the
Premium Force Addition
1061: Principles of Chemistry I Gas Laws Gas Laws: Pressure‚ Volume‚ and Temperature Introduction Pressure‚ volume‚ and temperature are properties of gases that reveal their relationships when any one of them is varied. Changing the temperature of a gas may change its volume or pressure‚ but how? What are the mathematical relationships between these properties? Are there limits to them? Scientists have discovered through the study of properties of gases that there is indeed a theoretical limit to
Premium Pressure Gas Ideal gas law