It's about 750 times as heavy as a Deck of Cards.
In other words, the weight of a Deck of Cards is 0.0014 times 70 kilograms.(ISO 216 B8 size, a.k.a. "poker size" 63 x 88 mm, 52-card deck)
A deck of 52 ISO 216 B8-size playing cards weighs 0.094 kilograms. Utilizing nearly 3,700 decks, the record-holding largest card tower was built in early 2010, stood over 3.5 m (11 ft), and weighed over 272 kg.
It's about one-one-thousandth as heavy as The Space Shuttle.
In other words, 70 kilograms is 0.00099 times the weight of The Space Shuttle, and the weight of The Space Shuttle is 1,000 times that amount.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 71,000 kilograms. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 19,737 kg.
It's about 1,000 times as heavy as a Battery (C).
In other words, 70 kilograms is 1,100 times the weight of a Battery (C), and the weight of a Battery (C) is 0.00091 times that amount.(Alkaline)
A "C" size battery weighs 0.065 kilograms. C batteries are typically used in medium-drain devices such as musical instruments.
It's about 1,000 times as heavy as a Tennis Ball.
In other words, 70 kilograms is 1,210 times the weight of a Tennis Ball, and the weight of a Tennis Ball is 0.000826 times that amount.(ITF Standard; for Type 2 ball)
Per International Tennis Federation standard, regulation tennis balls must weigh about 0.0577 kilograms. 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-one-thousand-five-hundredth as heavy as a Blue Whale.
It's about 1,500 times as heavy as a Golf Ball.
In other words, 70 kilograms is 1,524 times the weight of a Golf Ball, and the weight of a Golf Ball is 0.0006562 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 0.04593 kilograms. 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 2,000 times as heavy as a Light Bulb.
In other words, 70 kilograms is 2,100 times the weight of a Light Bulb, and the weight of a Light Bulb is 0.00048 times that amount.(a.k.a. lamp) (for A19-size, 60w, incandescent bulb by Bulbrite; package weight)
A standard, sixty-watt light bulb weighs about 0.034 kilograms. The tightly-coiled filament inside a bulb of this size would measure about 579mm if uncoiled and stretched out.