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.
PRIME TIME. Rare prime rib: Allow approximately 20 minutes per pound. Internal temperature of the beef should be 125 to 130Â°F (50 to 55Â°C) before you remove it from the oven. Medium-rare prime rib: Allow approximately 20 to 25 minutes per pound.Internal temperature should be 130 to 135Â°F (55 to 57Â°C) before you remove it from the oven. Medium prime rib: Allow approximately 25 minutes per pound.edium-rare prime rib: Allow approximately 20 to 25 minutes per pound. Internal temperature should be 130 to 135Â°F (55 to 57Â°C) before you remove it from the oven. Medium prime rib: Allow approximately 25 minutes per pound.