It's about 150 times as heavy as a Battery (C)
In other words, the weight of a Battery (C) is 0.0071 times 0.00000000910 megatonnes.(Alkaline)
A "C" size battery weighs 0.0000000000650 megatonnes. C batteries are typically used in medium-drain devices such as musical instruments.
It's about 150 times as heavy as a Tennis Ball
In other words, 0.00000000910 megatonnes is 158 times the weight of a Tennis Ball, and the weight of a Tennis Ball is 0.00633 times that amount.(ITF Standard; for Type 2 ball)
Per International Tennis Federation standard, regulation tennis balls must weigh about 0.00000000005770 megatonnes. Competition balls are also tested for bounce height, with the standards requiring that a ball dropped from 254 cm must bounce back to a height of 135 cm to 147 cm.
It's about one-two-hundredth as heavy as a Car
In other words, 0.00000000910 megatonnes is 0.005508 times the weight of a Car, and the weight of a Car is 181.60 times that amount.(for 2009 Ford Taurus) (curb weight)
A 2009 Ford Taurus weighs 0.0000016520 megatonnes. The first mass-produced car, the Curved Dash Oldsmobile — introduced in 1901 — weighed just 0.0000003860 megatonnes.
It's about 200 times as heavy as a Golf Ball
In other words, 0.00000000910 megatonnes is 198.10 times the weight of a Golf Ball, and the weight of a Golf Ball is 0.005048 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-two-hundredth as heavy as a Giraffe
In other words, 0.00000000910 megatonnes is 0.00472 times the weight of a Giraffe, and the weight of a Giraffe is 212 times that amount.(Giraffa camelopardalis reticulata) (adult, male, maximum of range)
An adult, male giraffe can weigh up to 0.000001930 megatonnes. Reaching 5.5 m (18 ft) in height by adulthood, giraffe calves can grow as much as 3 cm (1 in) per day.
It's about one-two-hundred-fiftieth as heavy as a Rhinoceros
In other words, the weight of a Rhinoceros is 230 times 0.00000000910 megatonnes.(for Black rhinoceros, Diceros bicornis) (Adult, male)
An adult black rhinoceros weighs between 0.00000210 megatonnes. Rhinoceros are extremely aggressive — nearly one of every two males will die as a result of fighting with other rhinoceros.
It's about 250 times as heavy as a Light Bulb
In other words, the weight of a Light Bulb is 0.0037 times 0.00000000910 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.