Question: BeiDou-1 is an experimental regional navigation system, which consists of four satellites (three working satellites and one backup satellite). The satellites themselves were based on the Chinese DFH-3 geostationary communications satellite and had a launch weight of 1,000 kilograms (2,200 pounds) each.
Try to answer this question if possible: BeiDou-1 consists of four working satellites and how many backups?
Answer: unanswerable
Question: However, the Orthodox claim to absolute fidelity to past tradition has been challenged by scholars who contend that the Judaism of the Middle Ages bore little resemblance to that practiced by today's Orthodox. Rather, the Orthodox community, as a counterreaction to the liberalism of the Haskalah movement, began to embrace far more stringent halachic practices than their predecessors, most notably in matters of Kashrut and Passover dietary laws, where the strictest possible interpretation becomes a religious requirement, even where the Talmud explicitly prefers a more lenient position, and even where a more lenient position was practiced by prior generations.
Try to answer this question if possible: What happened as a reaction to the conservatism movement?
Answer: unanswerable
Question: Others have rejected that the doctrine of Immaculate Conception exists in Islam, the Quranic account does not confirm the Immaculate Conception exclusively for Mary as in Islam every human child is born pure and immaculate, her sinless birth is thus independent of the Christian docrtrine of original sin as no such doctrine exists in Islam. Moreover, Hannah's prayer in the Quran for her child to remain protected from Satan (Shaytan) was said after it had already been born, not before and expresses a natural concern any righteous parent would have. The Muslim tradition or hadith, which states that the only children born without the "touch of Satan," were Mary and Jesus. should therefore not be taken in isolation from the Quran, and is to be interpreted within the specific context of exonerating Mary and her child from the charges that were made against them and is not a general statement. The specific mention of Mary and Jesus in this hadith may also be taken to represent a class of people, in keeping with the Arabic language and the Quranic verse [O Satan] surely thou shalt have no power over My servants, except such of the erring ones as choose to follow thee (15:42)
Try to answer this question if possible: What is the name of the prayer that is listed in the Qua-ran is used to enact a safeguard on kids from the the devil ?
Answer: Hannah's prayer in the Quran for her child to remain protected from Satan
Question: There are a number of proposals to redefine certain of the SI base units in terms of fundamental physical constants. This has already been done for the metre, which is defined in terms of a fixed value of the speed of light. The most urgent unit on the list for redefinition is the kilogram, whose value has been fixed for all science (since 1889) by the mass of a small cylinder of platinumiridium alloy kept in a vault just outside Paris. While nobody knows if the mass of the International Prototype Kilogram has changed since 1889 the value 1 kg of its mass expressed in kilograms is by definition unchanged and therein lies one of the problems it is known that over such a timescale the many similar PtIr alloy cylinders kept in national laboratories around the world, have changed their relative mass by several tens of parts per million, however carefully they are stored, and the more so the more they have been taken out and used as mass standards. A change of several tens of micrograms in one kilogram is equivalent to the current uncertainty in the value of the Planck constant in SI units.
Try to answer this question if possible: What measurement is deemed most important to redefine in terms of physical constants?
Answer:
the kilogram