Sunday, June 12, 2011

Temperature

What is temperature?
Temperature is a degree of hotness or coldness the can be measured using a thermometer. It's also a measure of how fast the atoms and molecules of a substance are moving. Temperature is measured in degrees on the Fahrenheit, Celsius, and Kelvin scales.

Click Here to look at a temperature conversion chart or use the temperature conversion calculator below.
ThermometerTemperature Conversion Calculator Thermometer
Enter Fahrenheit Temperature
Enter Celsius Temperature
What is the Wind Chill Index?
The wind chill index is the temperature your body feels when the air temperature is combined with the wind speed. The higher the wind speed the faster exposed areas of your body lose heat and the cooler you feel.

Click Here to look at the wind chill index conversion chart or use the wind chill calculator below.

Thermometer Wind Chill Calculator Thermometer

Air Temperature
Wind Speed

Wind Chill Temperature:

What is the Heat Index?
The Heat Index is a combination of air temperature and humidity that gives a description of how the temperature feels. This is not the actual air temperature.

Heat Stroke is the most severe form of heat injury and is a life-threatening emergency. It is the result of long, extreme exposure to the sun, in which a person does not sweat enough to lower body temperature. Take a look at the chart below to see what the Heat Index needs to be for you to get heat stroke.
HEAT INDEXAffects to the human body
130° or aboveHeat Stroke highly likely with continued exposure
105° to 130°Heat Stroke likely with prolonged exposure
90° to 105°Heat Stroke possible with prolonged exposure

Click Here to look at the heat index conversion chart or use the heat index calculator below.

Thermometer Heat Index Calculator Thermometer
Temp
(°F )
Dew
Point (°F)
RH =
Temp
(°C)
Dew
Point (°C )
RH =
Temp
(°F )
Relative
Humidity (%)
Heat Index =
Dew Point =
Temp
(°C)
Relative
Humidity (%)
Heat Index =
Dew Point =

How do you find the temperature for a specific day?
First, go to http://weather.gov. Then, click on the map for the place you are looking for. After that, look for a section called Climate. Beneath that title, read what is labeled and click on the one that most suits what you are looking for. This should take you into the National Weather Service's climatic data information for your specific area
.

Why can you see your breath when its cold outside?
Your breath is reasonably warm and humid and it has invisible water vapor as a large component of the gas. Warm moist air meeting the cooler air outside the body causes the invisible water vapor to condense the cooler air outside are visible and form the cloud that you see. The relative humidity which depends upon water content and temperature goes to 100%. As the breath gets further from the person's face the water content dilutes and the relative humidity goes down and the droplets go back into vapor form.

Can you tell the temperature by listening to the chirping of a cricket?
Yes! The frequency of chirping varies according to the temperature. To get a rough estimate of the temperature in degrees Fahrenheit, count the number of chirps in 15 seconds and then add 37. The number you get will be an approximation of the outside temperature.

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