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  2. Cavendish experiment - Wikipedia

    en.wikipedia.org/wiki/Cavendish_experiment

    Two massive 12-inch (300 mm), 348-pound (158 kg) lead balls, suspended separately, could be positioned away from or to either side of the smaller balls, 8.85 inches (225 mm) away. [9] The experiment measured the faint gravitational attraction between the small and large balls, which deflected the torsion balance rod by about 0.16" (or only 0.03 ...

  3. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The terametre (SI symbol: Tm) is a unit of length in the metric system equal to 1 000 000 000 000 meters (10 12 m). To help compare different distances , this section lists lengths starting at 10 12 m (1 Tm or 1 billion km or 6.7 astronomical units ).

  4. Gravitational constant - Wikipedia

    en.wikipedia.org/wiki/Gravitational_constant

    Cavendish's stated aim was the "weighing of Earth", that is, determining the average density of Earth and the Earth's mass. His result, ρ 🜨 = 5.448(33) g⋅cm −3, corresponds to value of G = 6.74(4) × 10 −11 m 3 ⋅kg −1 ⋅s −2. It is surprisingly accurate, about 1% above the modern value (comparable to the claimed relative ...

  5. Newton's law of universal gravitation - Wikipedia

    en.wikipedia.org/wiki/Newton's_law_of_universal...

    Assuming SI units, F is measured in newtons (N), m 1 and m 2 in kilograms (kg), r in meters (m), and the constant G is 6.674 30 (15) × 10 −11 m 3 ⋅kg −1 ⋅s −2. [12] The value of the constant G was first accurately determined from the results of the Cavendish experiment conducted by the British scientist Henry Cavendish in 1798 ...

  6. Earth mass - Wikipedia

    en.wikipedia.org/wiki/Earth_mass

    An Earth mass (denoted as M 🜨, M ♁ or M E, where 🜨 and ♁ are the astronomical symbols for Earth), is a unit of mass equal to the mass of the planet Earth. The current best estimate for the mass of Earth is M 🜨 = 5.9722 × 10 24 kg , with a relative uncertainty of 10 −4 . [ 2 ]

  7. 12 Dumbbell Workouts That Build Strength and Muscle - AOL

    www.aol.com/lifestyle/15-best-dumbbell-workouts...

    These 12 dumbbell workout routines prove how useful and versatile the equipment can be for lifters of all experience levels to do a range of exercises. 12 Dumbbell Workouts That Build Strength and ...

  8. Orders of magnitude (volume) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(volume)

    Volume of a red giant the same mass as the Sun 1.4 × 10 33: Volume of γ Crucis, a red giant in Crux [10] [11] ~1 × 10 34: Volume of Deneb, a white supergiant in Cygnus [12] 6.4 × 10 34: Volume of η Carinae, a white supergiant in Cygnus [12] 1.3 × 10 35: Estimated volume of S Orionis [13] 1.5 × 10 35: Volume of Antares, a Mira variable in ...

  9. Use These Dumbbell Exercises to Chisel Your Triceps - AOL

    www.aol.com/lifestyle/dumbbell-exercises-chisel...

    Dumbbells are all you need to carry out an effective tricep workout. Here are the best 8 dumbbell tricep exercises and the benefits of training with dumbbells.