Article: By 1763, the war in Central Europe was essentially a stalemate. Frederick had retaken most of Silesia and Saxony but not the latter's capital, Dresden. His financial situation was not dire, but his kingdom was devastated and his army severely weakened. His manpower had dramatically decreased, and he had lost so many effective officers and generals that a new offensive was perhaps impossible. British subsidies had been stopped by the new Prime Minister Lord Bute, and the Russian Emperor had been overthrown by his wife, Catherine, who ended Russia's alliance with Prussia and withdrew from the war. Austria, however, like most participants, was facing a severe financial crisis and had to decrease the size of its army, something which greatly affected its offensive power. Indeed, after having effectively sustained a long war, its administration was in disarray. By that time, it still held Dresden, the southeastern parts of Saxony, the county of Glatz, and southern Silesia, but the prospect of victory was dim without Russian support. In 1763 a peace settlement was reached at the Treaty of Hubertusburg, ending the war in central Europe.

Question: What had happened to Frederick's financial help from Britain?
Ans: British subsidies had been stopped by the new Prime Minister Lord Bute

Article: In 1886, Frank Julian Sprague invented the first practical DC motor, a non-sparking motor that maintained relatively constant speed under variable loads. Other Sprague electric inventions about this time greatly improved grid electric distribution (prior work done while employed by Thomas Edison), allowed power from electric motors to be returned to the electric grid, provided for electric distribution to trolleys via overhead wires and the trolley pole, and provided controls systems for electric operations. This allowed Sprague to use electric motors to invent the first electric trolley system in 188788 in Richmond VA, the electric elevator and control system in 1892, and the electric subway with independently powered centrally controlled cars, which were first installed in 1892 in Chicago by the South Side Elevated Railway where it became popularly known as the "L". Sprague's motor and related inventions led to an explosion of interest and use in electric motors for industry, while almost simultaneously another great inventor was developing its primary competitor, which would become much more widespread. The development of electric motors of acceptable efficiency was delayed for several decades by failure to recognize the extreme importance of a relatively small air gap between rotor and stator. Efficient designs have a comparatively small air gap. [a] The St. Louis motor, long used in classrooms to illustrate motor principles, is extremely inefficient for the same reason, as well as appearing nothing like a modern motor.

Question: What was the transportation advancement made possible by Sprague's designs?
Ans: electric trolley system

Article: Qado or lunch is often elaborate. Varieties of bariis (rice), the most popular probably being basmati, usually serve as the main dish. Spices like cumin, cardamom, cloves, cinnamon, and garden sage are used to aromatize these different rice delicacies. Somalis eat dinner as late as 9 pm. During Ramadan, supper is often served after Tarawih prayers; sometimes as late as 11 pm.

Question: What is the most popular variety of bariis?
Ans: basmati

Article: Matter may be converted to energy (and vice versa), but mass cannot ever be destroyed; rather, mass/energy equivalence remains a constant for both the matter and the energy, during any process when they are converted into each other. However, since is extremely large relative to ordinary human scales, the conversion of ordinary amount of matter (for example, 1 kg) to other forms of energy (such as heat, light, and other radiation) can liberate tremendous amounts of energy (~ joules = 21 megatons of TNT), as can be seen in nuclear reactors and nuclear weapons. Conversely, the mass equivalent of a unit of energy is minuscule, which is why a loss of energy (loss of mass) from most systems is difficult to measure by weight, unless the energy loss is very large. Examples of energy transformation into matter (i.e., kinetic energy into particles with rest mass) are found in high-energy nuclear physics.

Question: Energy may be converted to what?
Ans:
Matter