Problem: Please answer a question about the following article about YouTube:
Organizations including Viacom, Mediaset, and the English Premier League have filed lawsuits against YouTube, claiming that it has done too little to prevent the uploading of copyrighted material. Viacom, demanding $1 billion in damages, said that it had found more than 150,000 unauthorized clips of its material on YouTube that had been viewed "an astounding 1.5 billion times". YouTube responded by stating that it "goes far beyond its legal obligations in assisting content owners to protect their works".
What does youtube do to prevent losing lawsuits involving copyright infringement?
A: goes far beyond its legal obligations
Problem: Please answer a question about the following article about Electric motor:
Stepper motors are a type of motor frequently used when precise rotations are required. In a stepper motor an internal rotor containing PMs or a magnetically soft rotor with salient poles is controlled by a set of external magnets that are switched electronically. A stepper motor may also be thought of as a cross between a DC electric motor and a rotary solenoid. As each coil is energized in turn, the rotor aligns itself with the magnetic field produced by the energized field winding. Unlike a synchronous motor, in its application, the stepper motor may not rotate continuously; instead, it "steps"—starts and then quickly stops again—from one position to the next as field windings are energized and de-energized in sequence. Depending on the sequence, the rotor may turn forwards or backwards, and it may change direction, stop, speed up or slow down arbitrarily at any time.
When are stepper motors most useful?
A: when precise rotations are required
Problem: Please answer a question about the following article about Brigham Young University:
BYU has designated energy conservation, products and materials, recycling, site planning and building design, student involvement, transportation, water conservation, and zero waste events as top priority categories in which to further its efforts to be an environmentally sustainable campus. The university has stated that "we have a responsibility to be wise stewards of the earth and its resources." BYU is working to increase the energy efficiency of its buildings by installing various speed drives on all pumps and fans, replacing incandescent lighting with fluorescent lighting, retrofitting campus buildings with low-E reflective glass, and upgraded roof insulation to prevent heat loss. The student groups BYU Recycles, Eco-Response, and BYU Earth educate students, faculty, staff, and administrators about how the campus can decrease its environmental impact. BYU Recycles spearheaded the recent campaign to begin recycling plastics, which the university did after a year of student campaigning.
What is BYU working to increase by installing various speed drives on all pumps and fans?
A: energy efficiency of its buildings
Problem: Please answer a question about the following article about Apollo:
A lot of temples dedicated to Apollo were built in Greece and in the Greek colonies, and they show the spread of the cult of Apollo, and the evolution of the Greek architecture, which was mostly based on the rightness of form, and on mathematical relations. Some of the earliest temples, especially in Crete, don't belong to any Greek order. It seems that the first peripteral temples were rectangle wooden structures. The different wooden elements were considered divine, and their forms were preserved in the marble or stone elements of the temples of Doric order. The Greeks used standard types, because they believed that the world of objects was a series of typical forms which could be represented in several instances. The temples should be canonic, and the architects were trying to achieve the esthetic perfection. From the earliest times there were certain rules strictly observed in rectangular peripteral and prostyle buildings. The first buildings were narrow to hold the roof, and when the dimensions changed, some mathematical relations became necessary, in order to keep the original forms. This probably influenced the theory of numbers of Pythagoras, who believed that behind the appearance of things, there was the permanent principle of mathematics.
Why were the first buildings narrow?
A:
to hold the roof