When I'm deciding which intergalactic data set to work with, I don't want to take any half measures. That's why I'm drawn to the Sloan Digital Sky Survey (SDSS). In their own words, "The Sloan Digital Sky Survey (SDSS) is one of the most ambitious and influential surveys in the history of astronomy." Sounds like their putting the project right up there with the greats like Galileo. You can bring this level of astronomical greatness into your app via the SDSS APIs: SDSS cone search & SDSS image cut-out.
As a concept, quantum computing is one of those topics that generates far more debate than actual usage. Not only are there quarrels about the applicability of different types of approaches to quantum computing; there’s still a fair amount of debate over whether quantum computing applications will prove to be all that much faster than conventional computing applications.
Normally earthquakes are detected with sensative instruments, under the care of trained seismologists. With the Twitter API (our Twitter API profile), the ability to detect and report quake locations may fall into anyone's hands.