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"At its heart, the submarine would use a 1 kW radiothermal Stirling generator. This would not only provide power to propel the craft, but it would also keep the electronics from freezing. Unfortunately, Titan is so cold that it's almost a cryogenic environment, so the waste heat from the generator would cause the liquids around it to boil and this would need be taken into account when designing the sub to minimize interference. However, NASA estimates that the boat could do about one meter per second (3.6 km/h, 2.2 mph)."
Not to be outdone, Google has been experimenting with a ride-sharing app similar to Uber's and both companies have long toyed with the idea of offering same-day delivery of items like groceries and other staples. Last month Google announced it would start presenting data from third party applications inside Google Now, a service that displays useful information prominently on the screen of Android smartphones. Google said it had struck deals to draw data from such apps as Pandora, AirBnb, Zillow, and the ride-sharing service Lyft. The company most obviously missing from that list? Google's old and possibly former friend, Uber. According to Isaac, for young companies, even one as well funded as Uber, dancing with giants is a part of doing business — even if there is always a risk of getting squashed. "There are some hard lessons about the dangers of cooperation that are strongly in the memories of these companies," says John Morgan. "Something that makes partnering harder, even when it might make economic sense to do so."