The change in speed is the cause and the change in direction (refraction) is the effect. Flickr Physics Photo Laser light shown passing through a rectangular block of lucite. It enters the block along the normal line with an angle of incidence of 0Â°. There is no bending upon entering, nor upon leaving the block.
There are 237 calories in 1 cup of Refried Beans (Canned). Calorie breakdown: 12% fat, 67% carbs, 21% protein.
Refried beans are simply cooked pinto beans that are mashed and fried in either lard, bacon fat, or olive oil. The prefix re doesn't mean again, the way Americans are used to using it; it means well. I prefer using vegetarian refried beans, which are made with olive oil instead of lard. You can make an even simpler version, with just the beans and a sprinkle of cheese. 2  Either way, this is delicious. 3  Four Bean Chili. 4  Refried beans are the fourth bean in this rich and hearty recipe.