Search Results - Temperature
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In physics, temperature is a physical property of a system that underlies the common notions of hot and cold; something that feels hotter generally has the higher temperature. Temperature is one of the principal parameters of thermodynamics. If no net heat flow occurs between two objects, the objects have the same temperature; otherwise heat flows from the hotter object to the colder object. This is a consequence of the laws of thermodynamics. On the microscopic scale, temperature can be defined as the average energy in each degree of freedom of the particles in a system. Because temperature is a statistical property, a system must contain a large number of particles for temperature to have a useful meaning. For a solid, this energy is found primarily in the vibrations of its atoms about their equilibrium positions. In an ideal monatomic gas, energy is found in the translational motions of the particles; with molecular gases, vibrational and rotational motions also provide thermodynamic degrees of freedom. Temperature is measured with thermometers that may be calibrated to a variety of temperature scales. In most of the world (except for Belize, Myanmar, Liberia and the United States), the Celsius scale is used for most temperature measuring purposes. The entire scientific world (these countries included) measures temperature using the Celsius scale and thermodynamic temperature using the Kelvin scale, which is just the Celsius scale shifted downwards so that 0 K[1]= −273.15 °C, or absolute zero. Many engineering fields in the U.S., notably high-tech and US federal specifications (civil and military), also use the kelvin and degrees Celsius scales. Other engineering fields in the U.S. also rely upon the Rankine scale (a shifted Fahrenheit scale) when working in thermodynamic-related disciplines such as combustion. For a system in thermal equilibrium at a constant volume, temperature is thermodynamically defined in terms of its energy (E) and entropy (S) as Intuitively, temperature is the measurement of how hot or cold something is, although the most immediate way in which we can measure this, by feeling it, is unreliable, resulting in the phenomenon of felt air temperature, which can differ at varying degrees from actual temperature. On the molecular level, temperature is the result of the motion of particles which make up a substance. Temperature increases as the energy of this motion increases. The motion may be the translational motion of the particle, or the internal energy of the particle due to molecular vibration or the excitation of an electron energy level. Although very specialized laboratory equipment is required to directly detect the translational thermal motions, thermal collisions by atoms or molecules with small particles suspended in a fluid produces Brownian motion that can be seen with an ordinary microscope. The thermal motions of atoms are very fast and temperatures close to absolute zero are required to directly observe them. For instance, when scientists at the NIST achieved a record-setting low temperature of 700 nK (1 nK = 10−9 K) in 1994, they used optical lattice laser equipment to adiabatically cool caesium atoms. They then turned off the entrapment lasers and directly measured atom velocities of 7&_160;mm per second in order to calculate their temperature.
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1. Curtains Are Better Than Persiennes
November 06, 2009
When we are looking for a new apartment, we carefully precise the place because of our desire more sun rays to reach our new home, especially the living room. However, during the summer it often is a little brighter that we would want it to. This makes it hard to stand for more than a minute in a room like that as it is agony for your eyes. The result is the sudden increase of the temperature and all those factors turn your home into a very inhospitable place. If you have faced that problem, it is time for getting curtains!
They are not considered to be very fashionable but are still the ... (read more)
Author: Annie Deakin
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2. Granite Tiles - Use them anywhere
November 06, 2009
With incomparable and artistic characteristics, granite tiles are considered as one time-tested material that will help you to prevent possible amounts in the future with regards to home interior allowances and reconstructions. At the same time, these tiles comprise of an array of profits as well as provide an impression of natural stone, which is supposed to be immune to the effects of temperature. These tiles can withstand with heat and water and are available in the market at the comparatively cheaper prices. Granite is available in the form of strong fiery rocks, and is taken out in the f... (read more)
Author: Ricky manty
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3. Cubic zirconia jewelry - Better than diamond!
November 06, 2009
The origin of Cubic Zirconia is the cubic crystalline form of zirconium dioxide which is very hard in form and colorless but can be given various colors. It is in the form of crystals which is man made by combining Zirconia Powder and yttrium oxide at a temperature of 5000 degree Fahrenheit. The material is kept for some time to get cool and once it gets cooled beautiful crystals appear in sparkling and shiny forms which are very hard and durable. If gone through a UV rays Cubic Zirconia changes to yellow, or greenish yellow. The various features that make Cubic Zirconia distinguished with Dia... (read more)
Author: Tina Black
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4. Zoysia Grass Seed Is The Best All Round Grass Seed
November 05, 2009
If you want to change the appearance of your home and yard, plant zoysia grass seed. It is sturdy enough you won't have to worry about children running and romping on it. You need to make sure you are in a warm temperature area where it will grow well before you buy the seed. If you live in an area with cooler temperatures, you will run the risk of losing your grass.
Zoysia grass is originally from countries like Japan and China. It is a slow starter, but once it takes off it aggressively fights the weeds for its own space. It is a heat resistant, low growing, creeping type of grass. It i... (read more)
Author: Andy Z
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5. Upgrade to Double Glazing For A Warm And Cosy Winter
November 05, 2009
With winter drawing in the days are getting shorter and the temperature has dropped significantly. If you live in an older property you may have noticed draughts coming from around your windows and that the amount of gas and electricity you are using to heat your home has gone up significantly. By installing new double glazed windows and doors you will be able to eliminate the draughts and cut down the amount of gas and electricity you use considerably.
Double glazed windows as the name suggests works by using two panes of glass which are sealed together and a gap is left between the two... (read more)
Author: Scott Wells
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6. GosoLED unveils 6W LED dimmable lamps
November 05, 2009
GosoLED Lighting new generation of LED dimmable lamps started to sell on September 18, 2009. It took 5 months research and continuous improvement to solve the high temperature caused flicking and narrow scope problem. The LED dimmable lamps are widely used in residential, hotels, restaurants, KTV, meeting room with existed SCR dimmers. It can be directly applied to the original SCR dimmer. Therefore, it save re-wiring, re-installation new controllers and cost of renovation, etc. So it is very economic and environmental protection. When you try your efforts to dress up you living room as ... (read more)
Author: jekay wu
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7. Bringing a touch of elegance to your home - Granite Tiles
November 05, 2009
With an extraordinary and aesthetic characteristics, granite tiles have become popular now-a-days as one time-tested materials that will aid you to prevent possible costs in the coming time with regards to home interior maintenance and repairs. Simultaneously, these tiles comprise of an array of profits as well as provide a sense of natural stone, which is known to be immune to the consequences of temperature. These tiles can withstand with heat and water and are available in the market at the comparatively cheaper prices. Granite is available in the pattern of a crystal that is extracted fro... (read more)
Author: Ricky manty
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8. Basal Body Temperature Themometer
November 05, 2009
If you are interested in learning more about natural family planning, you may have heard about basal body temperature. Therefore, if you plan to use this method, you need to take your temperature immediately before you jump out of bed in the morning.Keeping track of your basal body temperature is a fairly easy and inexpensive way of predicting when you will ovulate. You can use your best prediction if you are trying to get pregnant or if you are trying to avoid pregnancy. The first step is to purchase a special basal body temperature thermometer. This thermometer measures to a tenth of a degre... (read more)
Author: John Soulier
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9. Basic Checklist for Buying Wine In A Store
November 05, 2009
Buying wine can be a tricky proposition for many of us. In this article, we take a look at a basic checklist of subjects that need to be considered when determining if a bottle is worth your hard earned money.
Importantly, this article is not about the merits of a particular wine. Instead, we are focusing just on what to consider when standing in a shop and looking at various bottles of wine. Obviously, you can’t tell if a wine is good or bad per se while just standing there, but you can determine if there might be a problem with the way the winery packaged the bottles or the store treats... (read more)
Author: Thomas Ajava
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10. Energy Saving HeatStar Heaters
November 05, 2009
Heaters are a necessity today especially in places with extreme cold weather conditions. There are various types of heaters which can be used for various purposes. Portable heaters are light in weight, easy to carry around, and are small in size, saving a lot of space.
HeatStar heaters maintain optimal temperature for your comfort. With these heaters, the heat is produced by innovative Toshiba Parrys Technology. Basically, objects in the immediate area of the heater are heated first. They provide instant heating without any costly pre-heating required, and have a very low consumption lev... (read more)
Author: Megha Sareen
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11. Help Me Get Pregnant - All You Need to Know to About Pregnancy Tips For Women
November 05, 2009
It can be frustrating when you are trying to get pregnant and you are having trouble doing so. Imagine for a moment yourself being pregnant and happy. Keep reading this article and you will discover the secret about getting pregnant.
The process of trying to have a baby can be very trying. Sometimes it seems like you never know what will happen or if it will ever happen for you. The women who are trying to conceive but are not able to get pregnant are going through a very frustrating time. These women need help to get pregnant.
Some women will take a pregnancy test every month only t... (read more)
Author: Shannon Spoon
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12. Help Me Get Pregnant - How Many Months Does it Take to Get Pregnant?
November 05, 2009
Have you and your partner been trying to get pregnant? What if there was a way for you to get pregnant in the next couple of months? Imagine experiencing the pure joy of having a baby growing inside you. In this article we will go over some methods to help you get pregnant. There a lot of natural ways to help you get pregnant.
You need to have sex at the right time to be able to get pregnant. The right time is when you are about to ovulate or you are already ovulating. The way to get pregnant is to know your cycle. Once you know your body's patterns, it will greatly improve your chance of... (read more)
Author: Shannon Spoon
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13. Help Me Get Pregnant - A Powerful Solution to Help You Get Pregnant
November 05, 2009
Have you and your partner been trying to get pregnant? What if there was a way for you to get pregnant in the next couple of months? Imagine experiencing the pure joy of having a baby growing inside you. In this article we will go over some methods to help you get pregnant. There a lot of natural ways to help you get pregnant.
If you have been having problems trying to conceive a baby, there are many options available for you to try. These can include everything from changing your diet, special exercises and knowing your ovulation. One solution to help you get pregnant is to have intercou... (read more)
Author: Shannon Spoon
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14. Help Me Get Pregnant - Amazing Secrets to Get You Pregnant Quick!
November 05, 2009
Have you been looking for the best ways to help get pregnant? In this article we will go over several things that answer the question, Can you help me get pregnant?
Can exercise help me get pregnant?
Exercising is a part of a healthy lifestyle and is crucial to help get you pregnant. You don't have to over do it though. A 20 minute walk in the evening or an aerobics workout will have a positive affect on you physically and mentally.
Can having sex all the time help me get pregnant?
Well that depends, knowing when you ovulate is what will help get you pregnant. If you do not... (read more)
Author: Shannon Spoon
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15. Swimming Pool Heaters - Swimming Pool Ideas
November 05, 2009
If you have a swimming pool in your backyard and you want to get a heater, you might have a lot of questions in mind. Swimming pool heaters are great for extending the season for swimming. With a heater, you can still enjoy your pool regardless of the weather. Through this article, you will find out the basic things that you have to know before you start to shop for a pool heater.
First and foremost, the purpose of a heater is obviously to set the water’s temperature to a comfortable level. Majority of pool experts suggest 78 degrees for pool water but some people would like to have warme... (read more)
Author: Albert Martin
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16. I Need Help Getting Pregnant! 7 Proven Tips to Help You Get Pregnant Now
November 05, 2009
What if there was a way for you to become pregnant? Picture yourself a few weeks from now taking a pregnancy test and it coming back positive. You may need some advice to increase your chances of getting pregnant. In this article I have some great tips to help you get pregnant.
Regular Sex
1. You will have a greater chance of getting pregnant by having sex on a consistent basis. If you have sex regularly, then you will not have to worry about keeping up with your ovulation.
Right Sexual Positions
2. When you are having sex it is best for the man to be on top. After you have... (read more)
Author: Shannon Spoon
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17. Aquarium Freshwater Fish, The Joy It Brings
November 05, 2009
Aquarium freshwater fish are a good choice for those who have the desire for a pet but not much time or patience to tend to one. One of the benefits of these creatures is that they are completely quiet, so you can pretty much put them anywhere without them disturbing the place. It just takes a few moments a day to feed them and test their water temperature, so they will not take too much time out of your day.
The beauty of this is that you can pick the size of your aquarium, hence the kind and number of fish you want to look after. You could go for a small tank, which has the appearance ... (read more)
Author: Jodi Hess
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18. Help! I've got air in the bond line!
November 05, 2009
The troubleshooting process begins with a thorough knowledge of the processes leading up to, and including, the application of the adhesive.
There are many possible causes for failure of bonded components. Before suspecting air in the bond line as the source of failure, double check the adhesive selection, the application process and the working environment. Make any necessary corrections.
A careful examination of the bond areas may provide clues to the cause and possible solution. When using adhesives or substrates that are translucent, trapped air pockets can be easily found by vis... (read more)
Author: Rebecca Wilmot
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19. When to use your blaZt cable and software
November 05, 2009
"The question is often asked – ‘what do you use the cable for?’ The blaZt cable has many uses, all of which are simple to use: - Fault finding a. Download fault codes b. Check any engine sensor for valid data c. Log data while driving for faults d. Change temperature of engine for cold start faults e. Basic adjustment of timing and fuel for fault finding f. Turn of cylinders individually to check the power of each cylinder a. Isolate some sensors b. Check that maximum values are not reached
- Basic tuning aid c. Turn of fuel pump to change fuel filter d. Use as reference for ... (read more)
Author: Jason Dear
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20. A day at the track
November 05, 2009
"I took my 300ZX out on the track last weekend. What a blaZt! I was especially pleased to use my blaZt data cable and software to keep a close eye on the temperature. As most of you will know, the temperature gauge on the dash is very inaccurate on these cars. The needle doesn’t tend to move between 70 and 100 degC. So I had my laptop strapped to the passenger seat with a big temperature gauge displaying the exact temperature. Last year when I took the car round the track the temperature was displaying 105degC and took 15-20min to cool down to below 100degC! This was not acceptable, so... (read more)
Author: Jason Dear
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21. Testing the temperature of your car
November 05, 2009
"If you are having overheating problems then using a blaZt cable to log the temperature of your Nissan is easy and not time consuming. Simply connect the cable, make sure the temp gauge is selected, then press ‘datalogging’. Choose the file name to save to and away you go. Drive around until your heart is content. Then when you are ready simply open Datalog Viewer and see where your car is overheating. You can also bring up other perameters which may give you clues as to whats causing it. For example, if you have a blocked radiator you may find that temperature increases with speed. Or ... (read more)
Author: Jason Dear
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22. Fall Window Treatments for Color and Warmth
November 05, 2009
Fall is here and as the weather starts to cool down and the leaves start to change colors, recreating a new look for your home is easy to do with transformation of your window treatments. The basic rule of thumb when considering new fall inspired window treatment is to think of two things—the changing colors as the trees start to transform and the changing temperature as the brisk air starts to set in.
The Changing Colors
All you have to do is look outside your window at the changing colors of the season to find a great autumn inspired color-palate for your new fall inspired window ... (read more)
Author: Ryan Frank
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23. A Very Short Guide To Backpacking Australia
November 05, 2009
When should you go?Many people has different meanings on when you should go to Australia. However, Australia is such a big country that you will always find a place that is good at a certain time. When it's bad in the north it's good in the south, and vica verca. The usual answer is still Januar to April. These are the summer months of Australia, and therefor primarily have good weather and good temperature.The middle and the southern parts of Australia are the places to be during summer. Because of the wet season, the Northern part is just way too hot and the humid is unbearable. A good place... (read more)
Author: Sam Hyde
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24. Making Bath Time a Safe Time for Your Baby
November 04, 2009
Bath time is a very important time in the daily life of your baby. Not only does it get rid of all those nasty germs on your baby's skin, it is a fantastic, social, fun time between parent and baby. Just remember to keep safety a first priority. There are at least three possible dangers you need to know about to prevent bath time accidents.
First always be careful to check the temperature of the water. The water temperature should be a little warmer than room temperature. Some people check with their hands. As a mother myself, I find my hands a little less sensitive to heat because I hav... (read more)
Author: Gabriella Gometra
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25. Q: what are the key features, and the associated benefits of present brassware?
November 04, 2009
Q: what are the key features, and the associated benefits of present brassware? A: brassware performance can be described by three criteria; durability, functionality and economy. Lever (1) The vital human interface with any tap or mixer is the hold. Our ergonomically designed handle delivers rectness fight of both water flow and temperature even when the users hands are wet, thanks to its specific handle characteristics. Die-cast from zinc for consistent performance and long term durability, this single lever hold has clear hot and chill indices that will not fade or rub-off even after m... (read more)
Author: Steve Marshall
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