Wow, that is a blatant error in the very beginning of the article: >> it was 3,500 kilojoules, otherwise known as calories NO! Although calories and joules ar

Wow, that is a blatant error in the very beginning of the article: >> it was 3,500 kilojoules, otherwise known as calories NO! Although calories and joules are indeed two measures of the same physical quantity (energy), there is a conversion factor of 4 between them: 1 calorie = 4.18400 joules. As a side note, the usual nutritional calorie (or "Calorie", with uppercase 'C'), is actually 1000 calories, or 4184 Joules.