Article: Returning to the basic concept of current flows in a conductor, consider what happens if a half-wave dipole is not connected to a feed point, but instead shorted out. Electrically this forms a single 12-wavelength element. But the overall current pattern is the same; the current will be zero at the two ends, and reach a maximum in the center. Thus signals near the design frequency will continue to create a standing wave pattern. Any varying electrical current, like the standing wave in the element, will radiate a signal. In this case, aside from resistive losses in the element, the rebroadcast signal will be significantly similar to the original signal in both magnitude and shape. If this element is placed so its signal reaches the main dipole in-phase, it will reinforce the original signal, and increase the current in the dipole. Elements used in this way are known as passive elements.

Question: Element used to provide support to the original signal are called?
Ans: passive elements

Article: In the 1970s, computer engineers at research institutions throughout the United States began to link their computers together using telecommunications technology. The effort was funded by ARPA (now DARPA), and the computer network that resulted was called the ARPANET. The technologies that made the Arpanet possible spread and evolved.

Question: Who funded the linking of computers around the US in the 1970s?
Ans: ARPA

Article: The state has the 12th-largest state economy in Mexico, accounting for 2.7% of the country's GDP. Chihuahua has the fifth highest manufacturing GDP in Mexico and ranks second for the most factories funded by foreign investment in the country. As of 2011[update], the state had an estimated 396 billion pesos (31.1 billion dollars) of annual GDP. According to official federal statistical studies, the service sector accounted for the largest portion of the state economy at 59.28%; the manufacturing and industrial sector is estimated to account for 34.36% of the state's GDP, with the agricultural sector accounting for 6.36% of the state's GDP. Manufacturing sector was the principal foreign investment in the state followed by the mining sector. In 2011, the state received approximately 884 million dollars in remittances from the United States, which was 4.5% of all remittances from the United States to Mexico.

Question: Which sector was the second largest?
Ans: the manufacturing and industrial sector

Article: While Goring was optimistic the Luftwaffe could prevail, Hitler was not. On 17 September he postponed Operation Sea Lion (as it turned out, indefinitely) rather than gamble Germany's newly gained military prestige on a risky cross-Channel operation, particularly in the face of a sceptical Joseph Stalin in the Soviet Union. In the last days of the battle, the bombers became lures in an attempt to draw the RAF into combat with German fighters. But their operations were to no avail; the worsening weather and unsustainable attrition in daylight gave the OKL an excuse to switch to night attacks on 7 October.

Question: When did the OKL switch to night raids?
Ans:
7 October