It's about one-fifty-fifth as heavy as a Reindeer
In other words, the weight of a Reindeer is 57.10 times 0.00000000290 megatonnes.(for Rangifer tarandus granti, adult, bull) (a.k.a. Caribou) ()Rangifer tarandus)
An adult, male reindeer weighs between 0.0000001660 megatonnes. Reindeer undertake a lengthy annual migration, with some herds traveling up to 5,000 km.
To all those observing, Merry Christmas from the Measure of Things.
It's about 65 times as heavy as a Golf Ball
In other words, 0.00000000290 megatonnes is 63.140 times the weight of a Golf Ball, and the weight of a Golf Ball is 0.01584 times that amount.(per R&A USGA Rules of Golf; maximum rule weight)
According to the Rules of Golf (as approved by the United States Golf Association and the Rules Committee of the Royal and Ancient Golf Club of Saint Andrews), golf balls must weigh no more than 0.000000000045930 megatonnes. Golf balls are not required to have the familiar dimpled pattern, but the design has been popular since its invention in 1905 because it reduces drag while increasing lift.
It's about one-sixty-fifth as heavy as The Heart of a Blue Whale
In other words, the weight of The Heart of a Blue Whale is 67 times 0.00000000290 megatonnes.(Balaenoptera musculus) (adult)
(for a 2014 specimen)
The heart of a blue whale weighs about 0.000000200 megatonnes. These hearts pump an estimated 7,100 L (1,875 gal) of blood through the whale's massive body.
It's about one-seventy-fifth as heavy as a cubic meter of Snow
In other words, the weight of a cubic meter of Snow is 77 times 0.00000000290 megatonnes.(Freshly fallen, standard conditions; measurements taken in Norway, 1965-68)
One cubic meter of freshly fallen snow under standard conditions weighs an average of 0.000000230 megatonnes. Assembled in 2008, the world record largest snowman was constructed of 0.0059 megatonnes of snow and stood 37.21 m (122.1 ft) tall.
It's about one-eighty-fifth as heavy as a Pig
In other words, the weight of a Pig is 83 times 0.00000000290 megatonnes.(Domestic pig, Sus scrofa domesticus, a.k.a. S. domesticus) (adult)
Domestic pigs weigh between 0.000000250 megatonnes. The titular character "Babe the pig" in the 1995 family film was played by 48 different American Yorkshire piglets due to the length of filming and the rate at which piglets reach adulthood.
It's about 85 times as heavy as a Light Bulb
In other words, the weight of a Light Bulb is 0.012 times 0.00000000290 megatonnes.(a.k.a. lamp) (for A19-size, 60w, incandescent bulb by Bulbrite; package weight)
A standard, sixty-watt light bulb weighs about 0.0000000000340 megatonnes. The tightly-coiled filament inside a bulb of this size would measure about 579mm if uncoiled and stretched out.
It's about 100 times as heavy as a Battery (AA)
In other words, 0.00000000290 megatonnes is 120 times the weight of a Battery (AA), and the weight of a Battery (AA) is 0.0083 times that amount.(Alkaline)
An "AA" size battery weighs 0.0000000000240 megatonnes. AA batteries came into common use during World War II and were given their name by the American National Standards Institute (ANSI) Committee C18 because they were smaller than the "A" size batteries which were invented first.