Roku has announced the launch of Amazon Prime Instant Video on Roku. This video service is available to all Amazon Prime members at no additional charge. The Amazon Prime subscription charge will not change from the current $79 per year. In addition to existing services such as free two-day shipping, Amazon Prime members now have access to unlimited, commercial-free, instant streaming of more than 5,000 movies and TV shows. The Amazon Instant Video channel can be accessed on your Roku DVP through the Channel Store. If you don't want to join Amazon Prime, you can still rent or purchase movies and TV shows. RokuGuide.com is working on a full review of this new video service. Check back soon!
latent heat in British. noun. (no longer in technical usage) the heat evolved or absorbed by unit mass (specific latent heat) or unit amount of substance (molar latent heat) when it changes phase without change of temperature.
Temperature is a measure of the intensity of heat. It is measured in degrees Celsius. A sewing needle that is red hot and has a temperature is 550Â° C contains less heat (calories) than a bucket of ice at 0Â° C. Heat can be added to water without raising its temperature. This happens when ice melts and when water vaporizes. This phenomenon is called latent heat. When water freezes the heat given up is called the latent heat of fusion. It requires 80 calories to freeze/or thaw one gram of water. When water boils we have the latent heat of vaporization, and it takes 539 calories to vaporize one gram of water at standard pressure.