Positron emission tomography scan (PET scan) Positron emission tomography (PET) is a nuclear imaging technique that creates detailed, computerized pictures of organs and tissues inside the body. A PET scan reveals how the body is functioning and uncovers areas of abnormal metabolic activity. During a PET scan, the patient is first injected with a glucose (sugar) solution that contains a very small amount of radioactive material. The substance is absorbed by the particular organs or tissues being examined.
Kneisler used a hailstone that measured 5.581 inches in diameter and weighed 1.68 lbs (a hailstone that was previously the largest measured in the U.S.) to calculate numbers necessary to estimate the size of the great hailstones in Revelation 16:21. Kneisler also assumed that the great hailstones would weigh 75 lbs in his analysis.
Hail is a form of solid precipitation. It is distinct from sleet, though the two are often confused for one another. It consists of balls or irregular lumps of ice, each of which is called a hailstone.Sleet falls generally in cold weather while hail growth is greatly inhibited at cold temperatures.ny thunderstorm which produces hail that reaches the ground is known as a hailstorm. Hail has a diameter of 5 millimetres (0.20 in) or more. Hailstones can grow to 15 centimetres (6 in) and weigh more than 0.5 kilograms (1.1 lb). Unlike ice pellets, hailstones are layered and can be irregular and clumped together.