in practice we can meet with even more complicated situations - see fig. reduce heat to medium; simmer 5 minutes. 60° = 2%, 65° = 3%, 70° = 5%, 75° = 12%, 80° = 15%. the only one i would consider buying is angry birds. designed for always on, always accessible 24×7 performance. maybe this could be the motive that sets some people off? add spices, rice and tomato and stir to coat. check the two next different photos. 