The calorie is a unit of energy. For historical reasons, two main definitions of "calorie" are in wide use. The large calorie, food calorie, or kilogram calorie was originally defined as the amount of heat needed to raise the temperature of one kilogram of water by one degree Celsius (or one kelvin). The small calorie or gram calorie was defined as the amount of heat needed to cause the same increase in one gram of water. Thus, 1 large calorie is equal to 1000 small calories. In nutrition and food science, the term calorie and the symbol cal almost always refers to the large unit. It is generally used in publications and package labels to express the energy value of foods in per serving or per weight, recommended dietary caloric intake, metabolic rates, etc. Some authors recommend the spelling Calorie and the symbol Cal (both with a capital C) to avoid confusion; however, this convention is often ignored. In physics and chemistry the word calorie and its symbol usually refer to the small unit; the large one being called kilocalorie. However, this unit is not officially part of the metric system (SI), and is regarded as obsolete, having been replaced in many uses by the SI unit of energy, the joule (J). The precise equivalence between calories and joules has varied over the years, but in thermochemistry and nutrition it is now generally assumed that one (small) calorie (thermochemical calorie) is equal to exactly 4.184 J, and therefore one kilocalorie (one large calorie) is 4184 J, or 4.184 kJ. (Wikipedia).
What is a calory? | Make Science Fun
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From playlist Fun Science Episodes
How Many Daily Calories Does A Person Need?
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From playlist Stuff About Food
Irrigation Efficiencies - Part 1
From playlist TEMP 1
Physics CH 0.5: Standard Units (11 of 41) Heat
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is a calorie, kilo-calorie, BTU. Next video in this series can be found at: https://youtu.be/vl7So5Xs3Wg
From playlist Michel van Biezen: Physics Mechanics 1: Introduction, Standard Units, and Vectors
Crop. Water Requirements (Continued)
From playlist TEMP 1
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From playlist PHYSICS - THERMODYNAMICS
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From playlist CHEMISTRY 9 THERMOCHEMISTRY
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From playlist Ratios and Rates
Vernier caliper / diameter and length of daily used objects.
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From playlist Fine Measurements
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From playlist NUTRITION TO BUILD MUSCLE AND LOSE FAT
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From playlist NUTRITION TO BUILD MUSCLE AND LOSE FAT
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From playlist Livestreams
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From playlist New Physics Video Playlist
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From playlist NUTRITION TO BUILD MUSCLE AND LOSE FAT
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From playlist Cool Math Stuff
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Now you can get Healthcare Triage merchandise! We have coffee mugs and posters, and our merch partner, DFTBA.com is having a black Friday sale. Get the deals here: http://dft.ba/-HCTmerch It's Thanksgiving this week in America. Last year, we talked about the myth that turkey makes you sle
From playlist Healthcare Triage
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From playlist M3 Challenge 2014 Team Presentations
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From playlist PHYSICS - THERMODYNAMICS