Input: Article: Vacuum is useful in a variety of processes and devices. Its first widespread use was in the incandescent light bulb to protect the filament from chemical degradation. The chemical inertness produced by a vacuum is also useful for electron beam welding, cold welding, vacuum packing and vacuum frying. Ultra-high vacuum is used in the study of atomically clean substrates, as only a very good vacuum preserves atomic-scale clean surfaces for a reasonably long time (on the order of minutes to days). High to ultra-high vacuum removes the obstruction of air, allowing particle beams to deposit or remove materials without contamination. This is the principle behind chemical vapor deposition, physical vapor deposition, and dry etching which are essential to the fabrication of semiconductors and optical coatings, and to surface science. The reduction of convection provides the thermal insulation of thermos bottles. Deep vacuum lowers the boiling point of liquids and promotes low temperature outgassing which is used in freeze drying, adhesive preparation, distillation, metallurgy, and process purging. The electrical properties of vacuum make electron microscopes and vacuum tubes possible, including cathode ray tubes. The elimination of air friction is useful for flywheel energy storage and ultracentrifuges.

Now answer this question: What was the object to use first in widespread manner process of vacuum?

Output: incandescent light bulb


Article: On 30 October 2009, May wrote a fanclub letter on his website stating that Queen had no intentions to tour in 2010 but that there was a possibility of a performance. He was quoted as saying, "The greatest debate, though, is always about when we will next play together as Queen. At the moment, in spite of the many rumours that are out there, we do not have plans to tour in 2010. The good news, though, is that Roger and I have a much closer mutual understanding these days—privately and professionally ... and all ideas are carefully considered. Music is never far away from us. As I write, there is an important one-off performance on offer, in the USA, and it remains to be decided whether we will take up this particular challenge. Every day, doors seem to open, and every day, we interact, perhaps more than ever before, with the world outside. It is a time of exciting transition in Rock music and in 'The Business'. It's good that the pulse still beats". On 15 November 2009, May and Taylor performed "Bohemian Rhapsody" live on the British TV show The X Factor alongside the finalists.

Question: In 2009, what was the first name of the former Queen member Brian May told fans he had a better understanding with?
Ans: Roger


Here is a question about this article: One of the Han's greatest mathematical advancements was the world's first use of negative numbers. Negative numbers first appeared in the Nine Chapters on the Mathematical Art as black counting rods, where positive numbers were represented by red counting rods. Negative numbers are used in the Bakhshali manuscript of ancient India, but its exact date of compilation is unknown. Negative numbers were also used by the Greek mathematician Diophantus in about 275 AD, but were not widely accepted in Europe until the 16th century AD.
What is the answer to this question: How were negative numbers first described during the Han period?
****
So... as black counting rods


The problem: Answer a question about this article:
The Taira and the Minamoto clashed again in 1180, beginning the Gempei War, which ended in 1185. Samurai fought at the naval battle of Dan-no-ura, at the Shimonoseki Strait which separates Honshu and Kyushu in 1185. The victorious Minamoto no Yoritomo established the superiority of the samurai over the aristocracy. In 1190 he visited Kyoto and in 1192 became Sei'i-taishōgun, establishing the Kamakura Shogunate, or Kamakura Bakufu. Instead of ruling from Kyoto, he set up the Shogunate in Kamakura, near his base of power. "Bakufu" means "tent government", taken from the encampments the soldiers would live in, in accordance with the Bakufu's status as a military government.
When did the Gempei War end?
****
The answer: 1185


Problem: Please answer a question about the following article about Daylight saving time:
Some applications standardize on UTC to avoid problems with clock shifts and time zone differences. Likewise, most modern operating systems internally handle and store all times as UTC and only convert to local time for display.
Where do computers usually use UTC?
A: internally


Question: Read this and answer the question

In 2008, TCM won a Peabody Award for excellence in broadcasting. In April 2010, Turner Classic Movies held the first TCM Classic Film Festival, an event – now held annually – at the Grauman's Chinese Theater and the Grauman's Egyptian Theater in Hollywood. Hosted by Robert Osborne, the four-day long annual festival celebrates Hollywood and its movies, and features celebrity appearances, special events, and screenings of around 50 classic movies including several newly restored by the Film Foundation, an organization devoted to preserving Hollywood's classic film legacy.

In addition to the Grauman's Chinese Theater, where did the first TCM Classic Film Festival take place?
Answer:
Grauman's Egyptian Theater