Investigation Into Temperature Sensors Introduction In this project I will be investigating how it is possible to use a temperature sensor to keep a greenhouse from changing temperature too much. This is intended to help plants live and grow in their optimum temperature. This will create a perfect temperature for the enzymes in the plants to work in‚ and therefore resulting in a maximum growth/production rate. This could be useful for gardeners who wish to grow plants as quickly as possible
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AUTOMATIC TEMPERATURE CONTROLLED FAN H ere is a circuit through which the speed of a fan can be linearly controlled automatically‚ depending on the room temperature. The circuit is highly efficient as it uses thyristors for power control. Alternatively‚ the same circuit can be used for automatic temperature controlled AC power control. In this circuit‚ the temperature sensor used is an NTC thermistor‚ i.e. one having a negative temperature coefficient. The value of thermistor resistance at
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Plants in Temperature An Investigatory Project Presented To the High School Department of the New Jerusalem School In Partial Fulfilment of the Requirements in
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changes in temperature expands the air inside of the basketball causing it to bounce higher. This experiment was decided by observations made while playing the sport basketball. It was observed that when a basketball is left in the sun and made warm‚ the ball bounces higher when dribbled than if left inside. Our assumed result was that an increase in temperature would cause an increase in air pressure causing the bounce of the basketball to increase. The independent variable was the temperature in which
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MOTOR TEMPERATURE RATINGS A frequently misunderstood subject related to electric motors is insulation class and temperature ratings. This paper tries to describe‚ in basic terms‚ the temperature relationships that are meaningful in standard AC induction motors. Some of the same information can be applied to DC motors but DC motors are more specialized and some of the ratings are slightly different. Perhaps the best way to start is to define the commonly used terms. MOTOR SURFACE TEMPERATURES
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How much does the average funeral cost? Funeral costs can be just as individual as the person they are held to celebrate. That being said‚ where does the average price for a funeral fall? A basic funeral that consists of embalming‚ viewing‚ hearse‚ burial‚ service fee‚ transfer of remains and more - costs on average about $7‚181. Funerals are a major expense. Know what to expect. Death is never convenient. You are never ready to lose a loved one. It’s one of those difficult things in life you simply
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Periodic Actual Cost Processing Logic An Oracle White Paper June 2003 Periodic Actual Cost Processing Logic Table of Contents 1.0 Executive Overview ................................................................................... 1 2.0 Introduction................................................................................................. 2 3.0 FUNCTIONAL ASPECTS ...................................................................... 2 4.0 PRE-REQUISITE..............................
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Smarter than the Average Bear “ Smarter than the average bear”. You might have heard this quote from the movie Yogi Bear. As a little girl I always wanted to be just like Yogi the the bear or Paddington. I would try to come up with these plans just like they did and go on adventures and to do the craziest things but there was always a consequence and I would get hurt. So I stopped doing bear like things and started embracing them and after that it felt like I was a bear but in a spiritual way. I
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getting a C is the “mark of Cain.” Why is that? A professor from Duke University and a visiting scholar to Stanford University‚ Stuart Rojstaczer‚ asked that same question. After doing his own research‚ he wrote the article “Where All Grades Are Above Average” which analyzes the phenomena that is commonly known as grade inflation in several universities and colleges. Rojstaczer explains‚ “the previous signs of academic disaster‚ D and F‚ went by the wayside in the Vietnam era‚ when flunking out meant becoming
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alcohol abuse. Although we cannot make their choices for them‚ we can persuade them into not taking alcohol by knowing the risks first; a lot like warnings on smoke packages. Alcohol can have a big affect on the adolescent mind. The brain of a an average human being keeps developing to the age of adolescence; people believe that the brain stops developing at the age of adolescence‚ but in fact‚ the brain develops into the early 20’s. At the age of adolescence‚ the brain goes under remodelling and
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