QUES: Surely, you have noticed the tall poles along the roadside. Do you know what is on top of those poles? Thats right, wires that carry electric current. These wires carry electric current to your home. But what is electric current? Electric current is actually the flow of electrons. You may recall, an electron is the outer-most particle in an atom. They have a negative charge. Electricity is the continuous flow of these particles. Electrons are able to move through wires. Their speed can even be measured. The SI unit for electric current (or speed) is the ampere (A). Ampere is often shortened to amp. Electric current may flow in just one direction, or it may keep reversing direction. Direct current (DC) flows in only one direction. Direct current is what is used in devices like flashlights. Alternating current (AC) flows in two directions. This is the type of current that flows into your home through wires.
Do you have any questions?
MY QUESTION: What is on top of the poles on the roadside?

QUES: We do not know exactly how the hijackers gained access to the cockpit; FAA rules required that the doors remain closed and locked during flight. Ong speculated that they had "jammed their way" in. Perhaps the terrorists stabbed the flight attendants to get a cockpit key, to force one of them to open the cockpit door, or to lure the captain or first officer out of the cockpit. Or the flight attendants may just have been in their way. At the same time or shortly thereafter, Atta-the only terrorist on board trained to fly a jet-would have moved to the cockpit from his business-class seat, possibly accompanied by Omari. As this was happening, passenger Daniel Lewin, who was seated in the row just behind Atta and Omari, was stabbed by one of the hijackers-probably Satam al Suqami, who was seated directly behind Lewin. Lewin had served four years as an officer in the Israeli military. He may have made an attempt to stop the hijackers in front of him, not realizing that another was sitting behind him. The hijackers quickly gained control and sprayed Mace, pepper spray, or some other irritant in the first-class cabin, in order to force the passengers and flight attendants toward the rear of the plane. They claimed they had a bomb. About five minutes after the hijacking began, Betty Ong contacted the American Airlines Southeastern Reservations Office in Cary, North Carolina, via an AT&T airphone to report an emergency aboard the flight. This was the first of several occasions on 9/11 when flight attendants took action outside the scope of their training, which emphasized that in a hijacking, they were to communicate with the cockpit crew. The emergency call lasted approximately 25 minutes, as Ong calmly and professionally relayed information about events taking place aboard the airplane to authorities on the ground. At 8:19, Ong reported:"The cockpit is not answering, somebody's stabbed in business class-and I think there's Mace-that we can't breathe-I don't know, I think we're getting hijacked." She then told of the stabbings of the two flight attendants. At 8:21, one of the American employees receiving Ong's call in North Carolina, Nydia Gonzalez, alerted the American Airlines operations center in Fort Worth, Texas, reaching Craig Marquis, the manager on duty. Marquis soon realized this was an emergency and instructed the airline's dispatcher responsible for the flight to contact the cockpit. At 8:23, the dispatcher tried unsuccessfully to contact the aircraft.
Do you have any questions?
MY QUESTION: Why might Lewin have been stabbed?

QUES: Milwaukee, Wisconsin (CNN) -- President Barack Obama, in a bid to create jobs and boost economic growth, called on Congress on Monday to pass a $50 billion plan to renew the country's transportation infrastructure. His address was the first of two speeches the president is scheduled to make this week to frame his administration's ongoing response to the recession, less than two months ahead of midterm elections in which Democratic majorities in the House and Senate are in jeopardy. "Today, I am announcing a new plan for rebuilding and modernizing America's roads, and rails and runways for the long term," said Obama, who spoke on Labor Day in Milwaukee, Wisconsin -- a state with competitive gubernatorial and U.S. Senate races. "We used to have the best infrastructure in the world. We can have it again," he said to loud cheers from a crowd of union workers. The proposal envisions -- over a six year period -- rebuilding 150,000 miles of roads, 4,000 miles of rail and 150 miles of airport runways. It also would include modernizing the nation's air traffic control system in an effort to reduce delays and travel time. "This will not only create jobs immediately. It's also going to make our economy hum over the long haul," said the president. Obama hopes to work with Congress to enact an up-front investment of $50 billion -- an amount a White House statement said would represent a significant chunk of new spending on infrastructure. The investment would then be paired with what the administration called a framework to improve transportation spending. The long-term plan would include the establishment of an Infrastructure Bank, which would leverage federal dollars and focus on projects that could deliver the the biggest bang for the buck, Obama said. The president stressed the need for Democrats and Republicans to work together on the transportation initiative, which would need to be approved by Congress.
Do you have any questions?
MY QUESTION: What as President Obama asking Congress for to implement his plan to renew the country's transportation infrastructure?

QUES: Honours and legacy In 1929, Soviet writer Leonid Grossman published a novel The d'Archiac Papers, telling the story of Pushkin's death from the perspective of a French diplomat, being a participant and a witness of the fatal duel. The book describes him as a liberal and a victim of the Tsarist regime. In Poland the book was published under the title Death of the Poet. In 1937, the town of Tsarskoye Selo was renamed Pushkin in his honour. There are several museums in Russia dedicated to Pushkin, including two in Moscow, one in Saint Petersburg, and a large complex in Mikhaylovskoye. Pushkin's death was portrayed in the 2006 biographical film Pushkin: The Last Duel. The film was directed by Natalya Bondarchuk. Pushkin was portrayed onscreen by Sergei Bezrukov. The Pushkin Trust was established in 1987 by the Duchess of Abercorn to commemorate the creative legacy and spirit of her ancestor and to release the creativity and imagination of the children of Ireland by providing them with opportunities to communicate their thoughts, feelings and experiences. A minor planet, 2208 Pushkin, discovered in 1977 by Soviet astronomer Nikolai Stepanovich Chernykh, is named after him. A crater on Mercury is also named in his honour. MS Alexandr Pushkin, second ship of the Russian Ivan Franko class (also referred to as "poet" or "writer" class). Station of Tashkent metro was named in his honour. The Pushkin Hills and Pushkin Lake were named in his honour in Ben Nevis Township, Cochrane District, in Ontario, Canada. UN Russian Language Day, established by the United Nations in 2010 and celebrated each year on 6 June, was scheduled to coincide with Pushkin's birthday.
Do you have any questions?
MY QUESTION:
What do Natalya Bondarchuk and Sergei Bezrukon have in common?