A group of engineering students from Purdue University recorded that their licking machine, modeled after a human tongue, took an average of 364 licks to get to the center of a Tootsie Pop. They tried the same licking test on 20 volunteers and found that the average licks to the center were 252 licks.
Directions. 1  Preheat oven to 450Â°F. 2  Pat the rib roast dry with a paper towel or napkin. 3  Smear the cut ends of the roast with the butter. 4  Place the roast (ribs down or fat side up) in roasting pan.5  Sear the rib roast for 15 minutes at 450Â°F, then turn the oven to 325Â°F for the rest of the cooking time.irections. 1  Preheat oven to 450Â°F. 2  Pat the rib roast dry with a paper towel or napkin. 3  Smear the cut ends of the roast with the butter. 4  Place the roast (ribs down or fat side up) in roasting pan.
Rating Newest Oldest. Best Answer: For a boneless prime rib it averages about 15 minutes per pound at 350F, but it really is best to have a meat thermometer. For medium-rare, you want to take it out of the oven at 135, because it's going to keep cooking a bit, even after it's out of the oven.o to this website for complete directions for low temperature cooking process:http://www.cookingforengineers.com/recip... If you want to cook the prime rib at a higher temperature, start out a 450 degrees F for 15 minutes, then reduce the temperature to 325 degrees F, and roast for 12 to 13 minutes per pound.