The work of David Hilbert and Max Planck was crucial to the foundation of modern physics, which Werner Heisenberg and Erwin Schrödinger developed further. They were preceded by such key physicists as Hermann von Helmholtz, Joseph von Fraunhofer, and Gabriel Daniel Fahrenheit, among others. Wilhelm Conrad Röntgen discovered X-rays, an accomplishment that made him the first winner of the Nobel Prize in Physics in 1901. The Walhalla temple for "laudable and distinguished Germans", features a number of scientists, and is located east of Regensburg, in Bavaria.
In what year, was the first Nobel Prize in Physics won?
1901


Input: Madonna (entertainer)
Possessing a mezzo-soprano vocal range, Madonna has always been self-conscious about her voice, especially in comparison to her vocal idols such as Ella Fitzgerald, Prince, and Chaka Khan. Mark Bego, author of Madonna: Blonde Ambition, called her "the perfect vocalist for lighter-than-air songs", despite not being a "heavyweight talent." According to MSNBC critic Tony Sclafani, "Madonna's vocals are the key to her rock roots. Pop vocalists usually sing songs "straight," but Madonna employs subtext, irony, aggression and all sorts of vocal idiosyncrasies in the ways John Lennon and Bob Dylan did." Madonna used a bright, girlish vocal timbre in her early albums which became passé in her later works. The change was deliberate since she was constantly reminded of how the critics had once labelled her as "Minnie Mouse on helium". During the filming of Evita, Madonna had to take vocal lessons, which increased her range further. Of this experience she commented, "I studied with a vocal coach for Evita and I realized there was a whole piece of my voice I wasn't using. Before, I just believed I had a really limited range and was going to make the most of it."

What was the title of Madonna's Book?
Output: Blonde Ambition


Input: Article: Predation is a biological interaction where a predator (a heterotroph that is hunting) feeds on its prey (the organism that is attacked). Predators may or may not kill their prey prior to feeding on them, but the act of predation almost always results in the death of the prey. The other main category of consumption is detritivory, the consumption of dead organic matter. It can at times be difficult to separate the two feeding behaviours, for example, where parasitic species prey on a host organism and then lay their eggs on it for their offspring to feed on its decaying corpse. Selective pressures imposed on one another has led to an evolutionary arms race between prey and predator, resulting in various antipredator adaptations.

Now answer this question: The evolutionary arms race between prey and predator has resulted in what?

Output: various antipredator adaptations


Article: English is the official language in the state of Montana, as it is in many U.S. states. English is also the language of the majority. According to the 2000 U.S. Census, 94.8 percent of the population aged 5 and older speak English at home. Spanish is the language most commonly spoken at home other than English. There were about 13,040 Spanish-language speakers in the state (1.4 percent of the population) in 2011. There were also 15,438 (1.7 percent of the state population) speakers of Indo-European languages other than English or Spanish, 10,154 (1.1 percent) speakers of a Native American language, and 4,052 (0.4 percent) speakers of an Asian or Pacific Islander language. Other languages spoken in Montana (as of 2013) include Assiniboine (about 150 speakers in the Montana and Canada), Blackfoot (about 100 speakers), Cheyenne (about 1,700 speakers), Plains Cree (about 100 speakers), Crow (about 3,000 speakers), Dakota (about 18,800 speakers in Minnesota, Montana, Nebraska, North Dakota, and South Dakota), German Hutterite (about 5,600 speakers), Gros Ventre (about 10 speakers), Kalispel-Pend d'Oreille (about 64 speakers), Kutenai (about 6 speakers), and Lakota (about 6,000 speakers in Minnesota, Montana, Nebraska, North Dakota, South Dakota). The United States Department of Education estimated in 2009 that 5,274 students in Montana spoke a language at home other than English. These included a Native American language (64 percent), German (4 percent), Spanish (3 percent), Russian (1 percent), and Chinese (less than 0.5 percent).

Question: ABout how many people in the state of Montana speak Cheyenne?
Ans: about 1,700


Here is a question about this article: Malaria kills more residents; 9% of the population have reported infection, It causes three times as many deaths as AIDS. In 2008, fewer than half of children younger than five slept under antimalaria nets or had access to antimalarial drugs.
What is the answer to this question: How many children under five slept under antimalaria nets in 2008?
****
So... fewer than half


Article: The current–voltage characteristic of an LED is similar to other diodes, in that the current is dependent exponentially on the voltage (see Shockley diode equation). This means that a small change in voltage can cause a large change in current. If the applied voltage exceeds the LED's forward voltage drop by a small amount, the current rating may be exceeded by a large amount, potentially damaging or destroying the LED. The typical solution is to use constant-current power supplies to keep the current below the LED's maximum current rating. Since most common power sources (batteries, mains) are constant-voltage sources, most LED fixtures must include a power converter, at least a current-limiting resistor. However, the high resistance of three-volt coin cells combined with the high differential resistance of nitride-based LEDs makes it possible to power such an LED from such a coin cell without an external resistor.

Question: What feature do most LED fixtures need to have?
Ans:
a power converter