Problem: Humans and animals exposed to vacuum will lose consciousness after a few seconds and die of hypoxia within minutes, but the symptoms are not nearly as graphic as commonly depicted in media and popular culture. The reduction in pressure lowers the temperature at which blood and other body fluids boil, but the elastic pressure of blood vessels ensures that this boiling point remains above the internal body temperature of 37 °C. Although the blood will not boil, the formation of gas bubbles in bodily fluids at reduced pressures, known as ebullism, is still a concern. The gas may bloat the body to twice its normal size and slow circulation, but tissues are elastic and porous enough to prevent rupture. Swelling and ebullism can be restrained by containment in a flight suit. Shuttle astronauts wore a fitted elastic garment called the Crew Altitude Protection Suit (CAPS) which prevents ebullism at pressures as low as 2 kPa (15 Torr). Rapid boiling will cool the skin and create frost, particularly in the mouth, but this is not a significant hazard.
When will a person or animal lose consciousness  when exposed to a vacuum?
---
Answer: after a few seconds


Problem: Everton's second successful era started when Harry Catterick was made manager in 1961. In 1962–63, his second season in charge, Everton won the League title and in 1966 the FA Cup followed with a 3–2 win over Sheffield Wednesday. Everton again reached the final in 1968, but this time were unable to overcome West Bromwich Albion at Wembley. Two seasons later in 1969–70, Everton won the League championship, nine points clear of nearest rivals Leeds United. During this period, Everton were the first English club to achieve five consecutive years in European competitions—seasons 1961–62 to 1966–67.
In what year did Everton's second successful era begin?
---
Answer: 1961


Problem: In 1994, over a hundred intrusions were made by unidentified crackers into the Rome Laboratory, the US Air Force's main command and research facility. Using trojan horses, hackers were able to obtain unrestricted access to Rome's networking systems and remove traces of their activities. The intruders were able to obtain classified files, such as air tasking order systems data and furthermore able to penetrate connected networks of National Aeronautics and Space Administration's Goddard Space Flight Center, Wright-Patterson Air Force Base, some Defense contractors, and other private sector organizations, by posing as a trusted Rome center user.
How were hackers able to penetrate connected networks?
---
Answer:
by posing as a trusted Rome center user