A report to investigate how the densities and thresholds of two different types of cutaneous receptors vary dependent on what part of the body tested Abstract The skin detects the modalities of touch and temperature through cutaneous receptors. The aim of this experiment was to examine the nature of these receptors and their distribution across the body. The results showed that out of the four skin areas examined, the greatest density of mechanoreceptors was on the tip of the finger. This was because
Everything is measured, even the hottest and the coldest temperatures can be measured, and in that case, the word fahrenheit comes into use. the book Word People by Nancy Sorel, defines fahrenheit as “pertaining to a temperature scale that registers the freezing point of water as 32 F and the boiling point as 212 F under standard atmospheric pressure” (Sorel 99). But the word fahrenheit, itself has its history of its creation, and was
Galileo Galilei, best known for his advances in astronomy (specifically, his improvements of the telescope), has also invented and improved many other commonly known items, such as the pendulum clock and the thermometer. In 1593, Galileo created a thermometer that relied on the expanding and contracting of air to push water up and down a clear tube. Since hot air takes up a larger volume than cold air, the higher the temperature is, the higher the water level is in the tube. The clear tube can
if the distance between a light source and a thermometer increases, then the temperature decreases. For the experiment, four thermometers were placed 20 centimeters, 40 centimeters, 60 centimeters, and 80 centimeters away from a lamp. The temperature of every thermometer was recorded at every minute for 10 minutes. The data collected from the lab supports the hypothesis stated. At the beginning of the experiment, the temperature of every thermometer at 0 minutes was between 20 and 22 degrees Celsius
The instrument used to measure temperature is a thermometer. There are many types of thermometers; the most common consist of a closed, graduated glass tube in which a liquid expands or contracts as the temperature increases or decreases. Many different types of thermometers work by detecting changes in the volume or pressure of an enclosed gas or by registering thermoelectric changes in a conductor (such as a thermistor or thermocouple). Galen, a Greek scientist and doctor made the first attempt
science behind how a mercury thermometer works using the particle model. When a mercury thermometer or any type of thermometer comes into contact with a heated or cooled object the kinetic energy of the molecules of the thermometer heats o cools to match the objects temperature. The thermometer normally has a liquid substance such as mercury or alcohol that will expand when heated. The molecules move faster taking up more space causing the liquid in the thermometer to expand and rise to show the
Temperature Analysis The expectations I held when first given this assignment are echoed in the conceptual models presented in the guidance document: locations situated close to the ocean ought to exhibit cooler temperatures during the summer months while maintaining slightly warmer temperatures during the winter and that more inland locations should display slightly higher temperatures within the summer time but lower temperatures during the winter months. This expectation was largely influenced
The first well-established product that I chose was a Honeywell Thermostat for a consumer to the temperature in their homes. This company has been selling thermostats since 1885, when they were considered furnace regulators and alarms. I believe they are in the maturity stage of their product life. They continue to keep up with the new technology advances and continue to produce thermostats that seem to be the go to for most older consumers looking for a way to regulate the temperature in their
even skipped a minute. Also, with the digital thermometer, the temperature kept on fluctuating and we had to wait a few seconds so we could not get the exact temperature at the start of each minute. The temperature could be slightly lower than it actually should be. I think we could have improved this error by sticking a mercury thermometer into the beaker instead of using digital one. Another source of error was that we used the same digital thermometer to measure the temperature of each beaker.
of temperature at small intervals. It also depends on the skill of the user. ADVANTAGES Pyrometers are widely used these days due the following advantages: 1) Fast response time-Pyrometers have very short response time. In the case of normal thermometers ,the probe must first reach the same temperature of the object and this takes time due to thermal conduction. But in the case of pyrometers, the radiation is being measured and the temperature is shown. 2) Affect on temperature and material- As