QUES: LEDs have been developed by Seoul Semiconductor that can operate on AC power without the need for a DC converter. For each half-cycle, part of the LED emits light and part is dark, and this is reversed during the next half-cycle. The efficacy of this type of HP-LED is typically 40 lm/W. A large number of LED elements in series may be able to operate directly from line voltage. In 2009, Seoul Semiconductor released a high DC voltage LED, named as 'Acrich MJT', capable of being driven from AC power with a simple controlling circuit. The low-power dissipation of these LEDs affords them more flexibility than the original AC LED design.
What did Seoul Semiconductor name their ac powered HP-LED?

ANS: Acrich MJT

QUES: The oldest rocks in the group are in the north west of Scotland, Ireland and North Wales and are 2,700 million years old. During the Silurian period the north-western regions collided with the south-east, which had been part of a separate continental landmass. The topography of the islands is modest in scale by global standards. Ben Nevis rises to an elevation of only 1,344 metres (4,409 ft), and Lough Neagh, which is notably larger than other lakes on the isles, covers 390 square kilometres (151 sq mi). The climate is temperate marine, with mild winters and warm summers. The North Atlantic Drift brings significant moisture and raises temperatures 11 °C (20 °F) above the global average for the latitude. This led to a landscape which was long dominated by temperate rainforest, although human activity has since cleared the vast majority of forest cover. The region was re-inhabited after the last glacial period of Quaternary glaciation, by 12,000 BC when Great Britain was still a peninsula of the European continent. Ireland, which became an island by 12,000 BC, was not inhabited until after 8000 BC. Great Britain became an island by 5600 BC.
The oldest rocks are 1,500 years old and located where? 

ANS: unanswerable

QUES: His next theatrical release in that same year was the World War II film Saving Private Ryan, about a group of U.S. soldiers led by Capt. Miller (Tom Hanks) sent to bring home a paratrooper whose three older brothers were killed in the same twenty-four hours, June 5–6, of the Normandy landing. The film was a huge box office success, grossing over $481 million worldwide and was the biggest film of the year at the North American box office (worldwide it made second place after Michael Bay's Armageddon). Spielberg won his second Academy Award for his direction. The film's graphic, realistic depiction of combat violence influenced later war films such as Black Hawk Down and Enemy at the Gates. The film was also the first major hit for DreamWorks, which co-produced the film with Paramount Pictures (as such, it was Spielberg's first release from the latter that was not part of the Indiana Jones series). Later, Spielberg and Tom Hanks produced a TV mini-series based on Stephen Ambrose's book Band of Brothers. The ten-part HBO mini-series follows Easy Company of the 101st Airborne Division's 506th Parachute Infantry Regiment. The series won a number of awards at the Golden Globes and the Emmys.
How much did Saving Private Ryan earn in America?

ANS: unanswerable

QUES: Founded at various times in the university's history, the professional schools originally were scattered throughout Chicago. In connection with a 1917 master plan for a central Chicago campus and President Walter Dill Scott's capital campaign, 8.5 acres (3.44 ha) of land were purchased at the corner of Chicago Avenue and Lake Shore Drive for $1.5 million in 1920. The architect James Gamble Rogers was commissioned to create a master plan for the principal buildings on the new campus which he designed in collegiate gothic style. In 1923, Mrs. Montgomery Ward donated $8 million to the campaign to finance the construction of the Montgomery Ward Memorial Building which would house the medical and dental schools and to create endowments for faculty chairs, research grants, scholarships, and building maintenance. The building would become the first university skyscraper in the United States. In addition to the Ward Building, Rogers designed Wieboldt Hall to house facilities for the School of Commerce and Levy Mayer Hall to house the School of Law. The new campus comprising these three new buildings was dedicated during a two-day ceremony in June 1927. The Chicago campus continued to expand with the addition of Thorne Hall in 1931 and Abbott Hall in 1939. In October 2013, Northwestern began the demolition of the architecturally significant Prentice Women's Hospital. Eric G. Neilson, dean of the medical school, penned an op-ed that equated retaining the building with loss of life.
In 1920, how many acres were purchased for $10 million for a new central Chicago campus?

ANS:
unanswerable