It's about 8,000 times as heavy as a Can of Soup
In other words, 42,000,000 grains is 7,800 times the weight of a Can of Soup, and the weight of a Can of Soup is 0.00013 times that amount.(for Campbell''s Condensed Tomato Soup, 317.9 ml)
A can of Campbell''s Tomato Soup weighs 5,400 grains. Cans have been used to store soup and other foods since their invention in 1913, but a dedicated can opener was not developed until cans began to use thinner materials — prior to that time, cans were usually opened using various blunt instruments and tools.
It's about 9,000 times as heavy as a Human Heart
In other words, 42,000,000 grains is 8,800 times the weight of a Human Heart, and the weight of a Human Heart is 0.00011 times that amount.(human; adult)
The average human heart weighs about 4,800 grains. Each minute, the heart pumps between 10 and 20 liters (3 to 5 gallons) of blood through its chambers.
It's about one-nine-thousandth as heavy as The Statue of Liberty
In other words, 42,000,000 grains is 0.00011 times the weight of The Statue of Liberty, and the weight of The Statue of Liberty is 9,090 times that amount.(a.k.a. Liberty Enlightening the World, a.k.a. La Liberté éclairant le monde) (total weight, including foundation)
The total weight of the Statue of Liberty, including her base is roughly 380,000,000,000 grains. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about 10,000 times as heavy as a Hamster
In other words, the weight of a Hamster is 0.0001 times 42,000,000 grains.(for Syrian hamster, a.k.a. golden hamster, a.k.a. Mesocricetus auratus; adult)
An adult Syrian hamster has a typical weight of about 3,000 grains. Known for transporting food in the pouches of their cheeks so that they can bury it later, some hamsters can store up to 400,000 grains of food in their borrows.
It's about 15,000 times as heavy as a Billiard Ball
In other words, 42,000,000 grains is 16,695.6521739130 times the weight of a Billiard Ball, and the weight of a Billiard Ball is 0.0000598958333333330 times that amount.(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 2,406.250 grains and 2,625 grains. According to legend, the difficulty in obtaining elephant ivory for the manufacture of billiard balls in the 19th century inspired the search for a replacement material, which led to the development of the first industrial plastic.
It's about 15,000 times as heavy as a Puck (Hockey)
In other words, 42,000,000 grains is 16,695.6521739130 times the weight of a Puck (Hockey), and the weight of a Puck (Hockey) is 0.0000598958333333330 times that amount.(Ice hockey)
A standard ice hockey puck weighs between 2,406.250 grains and 2,625 grains. Hockey pucks can be shot or passed at speeds of up to 160 kph (99 mph) during games.
It's about 20,000 times as heavy as a Baseball
In other words, 42,000,000 grains is 18,731.7073170730 times the weight of a Baseball, and the weight of a Baseball is 0.0000533854166666670 times that amount.(MLB rules)
Per Major League Baseball rules, a baseball must weigh between 2,187.50 grains and 2,296.8750 grains. A major league pitcher can throw a baseball at up to 150 kph (91 mph) (with a fastball pitch), with record-setting pitches as fast as 171 kph (106 mph).