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An 1849 edition of the Family Favorite and Temperance Journal extended the concept: "Four boxes govern the world:—cartridge box, ballot box, jury box, and band box". [1] The bandbox, originally designed to hold collar bands, was used to carry the elaborate women's hats of the time as well as many other personal items. [ 8 ]
ρ p is the mass density of the sphere [kg/m 3] ρ f is the mass density of the fluid [kg/m 3] g is the gravitational acceleration [m/s 2] Requiring the force balance F d = F e and solving for the velocity v gives the terminal velocity v s.
Generally, old age tends to reduce the efficiency of the pulmonary system, and can cause the onset of hypoxia symptoms sooner. [3] Smoking drastically reduces oxygen intake efficiency, and can have the effect of reducing tolerance by 1,000–2,000 metres (3,300–6,600 ft). [4] Hypoxia can be produced in a hypobaric chamber. This can be useful ...
The paradox starts with three boxes, the contents of which are initially unknown. Bertrand's box paradox is a veridical paradox in elementary probability theory. It was first posed by Joseph Bertrand in his 1889 work Calcul des Probabilités. There are three boxes: a box containing two gold coins, a box containing two silver coins,
O'Dell told police the babies died at birth between 1981 and 1984. [4] She kept the three babies in a storage unit for over ten years. When she defaulted on her rent, her landlord cleared out her possessions and discovered the corpses. [5] The case became known as 'The Babies in Boxes Murder Case'. [6]
According to NASA scientist Geoffrey A. Landis, the effect depends on the size of the hole, which can be expanded by debris that is blown through it; "it would take about 100 seconds for pressure to equalise through a roughly 30.0 cm (11.8 in) hole in the fuselage of a Boeing 747." Anyone blocking the hole would have half a ton of force pushing ...
Prisoner 2 opens drawers 2, 4, and 8 in this order. In the last drawer they find their own number, 2. Prisoner 3 opens drawers 3 and 6, where they find their own number. Prisoner 4 opens drawers 4, 8, and 2, where they find their own number. This is the same cycle that was encountered by prisoner 2 and will be encountered by prisoner 8.
For nuclear-bomb designers, the term was a convenient name for the short interval, rounded to 10 nanoseconds, which was frequently seen in their measurements and calculations: The typical time required for one step in a chain reaction (i.e. the typical time for each neutron to cause a fission event, which releases more neutrons) is of the order of 1 shake, and a chain reaction is typically ...