A spherically symmetric black hole with a point electric charge has the same essential features as a rotating black hole. ... Such spinning black holes are known as Kerr black holes. ... Black hole electrodynamics is the theory of electrodynamics outside a black hole. ... A rotating, charged black hole creates a magnetic field around the hole because the inertial frame is dragged around the hole. Far from the black hole, at infinity, the black hole electric field is that of a point charge. ...

• Word Count: 3056
• Approx Pages: 12
• Has Bibliography

So how do they know that black holes do in fact exist? ... Scientists today call such an object a black hole. ... If you apply this rule to the solution that describes black holes, you get an object known as a white hole. ... In fact, just as a black hole can only suck things in, a white hole can only spit things out. ... Producing a white hole is just as impossible as destroying a black hole, since the two processes are time-reversals of each other. ...

• Word Count: 3066
• Approx Pages: 12
• Has Bibliography

A black hole always has two "ends", a property ignored by everyone except a few mathematicians until the mid-1980s. ... Wormholes are gateways between two different parts of the universe made by linking two black holes. ... By connecting the two holes they provide a quick path between two different locations in space and time. ... The difficulty of doing this is in keeping the hole open till the travel gets through otherwise it would collapse and the traveler would not be seen again. ... A step in the hole would take us to where the other machine is, but that would be in a different time. ...

• Word Count: 2726
• Approx Pages: 11
• Grade Level: High School