Learn about the metaphysical and spiritual healing properties of Hematite, which is also called the stone of the mind or blood ore.Alternate Names & Spellings for Hematite: Stone for the Mind, Blood Stone (uncommon), Blood Ore.ematite gets its name from Latin meaning blood stone. In modern times we're more familiar with polished, silvery gray-black hematite, so the name blood stone seems strange. However, when found naturally, most hematite-an iron oxide ore-is red with rust, so that's how it got its name.
Quick Answer. The mass of a baseball is about 145 grams or approximately 5.11 ounces. According to the Major League Baseball website, an official baseball cannot weigh less than 5 ounces or more than 5.25 ounces. Continue Reading
A tennis ball weighs 57 grams. An arm weighs about 2000 grams (4.4 pounds). The average of these two weights is 2057/2 = 1028 grams, which is way too heavy for a racquet. The geometric mean gives a more sensible answer for racquet weight. Multiply the numbers together and you get 57 Ã 2000 = 114,000 square grams. Now take the square root of 114,000 which is 337.6 grams. That is the geometric mean, and it may be the ideal weight in terms of racquet power (assuming your arm weighs 2000 grams). A 337.6-gram racquet is 5.92 times heavier than a 57-gram tennis ball, and a 2000-gram arm is 5.92 times heavier than a 337.6-gram racquet. Example 2: A Baseball Bat.