Science fiction books, novels and television have, for years, invented technology for the purposes of plot. But fact is almost always stranger than fiction. Many of the devices you might recognize from your favorite sci-fi stories are already a reality. Take a look.
Driverless cars can only lead to cabbie-less cabs.
This one needs a track.
Assists soldiers as well as the elderly.
Although technically not nano-sized, these micro air vehicles get around unseen.
If only there were aliens to communicate with.
For those who don't understand what tail-wagging means.
It's only a matter of time.
Who wants to test this one?
The strongest metal in sci-fi could be real.
Today's force fields are less of a shield and more of a protective blast.