He introduces basic optics , then describes performing astigmatism analysis , administering aspheric treatments that reduce spherical aberration after surgery , making calculations for vertex distance and refraction as well as intraocular lens power , performing intraocular lens calculations after surgery , correcting presbyopia surgically , ...
Then reduce the oven temperature to 170Â°C. Add the onions, garlic and thyme around the beef with about 100 ml of water. Cover with foil and cook for about 2 hours, basting from time to time and adding a little more water if necessary. This will keep the meat moist.Re-cover with the foil each time. Uncover the meat for the last 15 minutes of cooking.hen reduce the oven temperature to 170Â°C. Add the onions, garlic and thyme around the beef with about 100 ml of water. Cover with foil and cook for about 2 hours, basting from time to time and adding a little more water if necessary. This will keep the meat moist. Re-cover with the foil each time.
Rub a tablespoon of butter over the meat of each drumstick. This will keep the meat moist while the drumsticks bake. For larger drumsticks, you can use up to three tablespoons of butter. To make the butter easier to spread, bring it to room temperature before applying it to the turkey.