QUES: BeiDou-2 (formerly known as COMPASS) is not an extension to the older BeiDou-1, but rather supersedes it outright. The new system will be a constellation of 35 satellites, which include 5 geostationary orbit satellites for backward compatibility with BeiDou-1, and 30 non-geostationary satellites (27 in medium Earth orbit and 3 in inclined geosynchronous orbit), that will offer complete coverage of the globe.

The old system will consist of how many non-geostationary satellites satellites?
What is the answer?
ANS: unanswerable
QUES: Rapid decompression can be much more dangerous than vacuum exposure itself. Even if the victim does not hold his or her breath, venting through the windpipe may be too slow to prevent the fatal rupture of the delicate alveoli of the lungs. Eardrums and sinuses may be ruptured by rapid decompression, soft tissues may bruise and seep blood, and the stress of shock will accelerate oxygen consumption leading to hypoxia. Injuries caused by rapid decompression are called barotrauma. A pressure drop of 13 kPa (100 Torr), which produces no symptoms if it is gradual, may be fatal if it occurs suddenly.

What causes barotrauma?
What is the answer?
ANS: rapid decompression
QUES: On July 5, 1779, 2,600 loyalists and British regulars under General William Tryon, governor of New York, landed in New Haven Harbor and raided the 3,500-person town. A militia of Yale students had been prepping for battle, and former Yale president and Yale Divinity School professor Naphtali Daggett rode out to confront the Redcoats. Yale president Ezra Stiles recounted in his diary that while he moved furniture in anticipation of battle, he still couldn't quite believe the revolution had begun. New Haven was not torched as the invaders did with Danbury in 1777, or Fairfield and Norwalk a week after the New Haven raid, so many of the town's colonial features were preserved.

The militia that fought in New Haven was lead by who?
What is the answer?
ANS:
Naphtali Daggett