Knowledge base is one of the departments where Alexa has lagged Assistant.
After all, it pretty tough to compete with Google when comes to a sheer breadth of knowledge.
Wolfram Alpha is a pretty good place to start.
The answer engine offers a wide cross section of curated data, with a heavy focus on math and sciences.
Starting this week, U.S.-based Alexa users will get access to that information, with roll out completing over the coming weeks and months.
A few of the things you&ll be able to ask Wolfram Alpha via Alexa,Alexa, what is the billionth prime numberAlexa, how high do swans flyAlexa, what is x to the power of three plus x plus five where x is equal to sevenAlexa, how fast is the wind blowing right nowAlexa, how many sheets of paper will fit in a binderAlexa, how long until the moon risesWolfram pulls its own information for a wide range of sources, including its own Wolfram Mathematica and third-party resources, including CrunchBase.
Alexa, for its part, is building up its own external knowledge base from a range of sites, including MDb, Accuweather, Yelp and, perhaps, most importantly, Wikipedia.