Problem: USB data is transmitted by toggling the data lines between the J state and the opposite K state. USB encodes data using the NRZI line coding; a 0 bit is transmitted by toggling the data lines from J to K or vice versa, while a 1 bit is transmitted by leaving the data lines as-is. To ensure a minimum density of signal transitions remains in the bitstream, USB uses bit stuffing; an extra 0 bit is inserted into the data stream after any appearance of six consecutive 1 bits. Seven consecutive received 1 bits is always an error. USB 3.0 has introduced additional data transmission encodings.
How is the USB data transmitted?
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Answer: by toggling the data lines between the J state and the opposite K state

Problem: Hanover's leading cabaret-stage is the GOP Variety theatre which is located in the Georgs Palace. Some other famous cabaret-stages are the Variety Marlene, the Uhu-Theatre. the theatre Die Hinterbuhne, the Rampenlich Variety and the revue-stage TAK. The most important Cabaret-Event is the Kleines Fest im Groen Garten (Little Festival in the Great Garden) which is the most successful Cabaret Festival in Germany. It features artists from around the world. Some other important events are the Calenberger Cabaret Weeks, the Hanover Cabaret Festival and the Wintervariety.
Where do artists who feature in the Kleines Fest im Groen Garten come from?
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Answer: around the world

Problem: Rapid environmental changes typically cause mass extinctions. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).
What is the estimated weight of the total amount of species on Earth?
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Answer:
unanswerable