Similarly, scientists have long envisioned an electronic pancreas for diabetics.

These are all fictional machines, far removed from real robots of the present or even those that scientists envision for the future.

Some scientists envision that micro-machines could revolutionize fields like manufacturing and medicine.

Like forts in the western frontier, these scientists envisioned space stations as staging points for the exploration of outer space.

Next, scientists envision a similar device to restore sight for blind people by stimulating nerve cells in the visual cortex.

When the plans to close the mine were announced, scientists envisioned converting its 300 miles of tunnels into a vast scientific laboratory.

Some scientists envision that biological engineers will one day sit at computers writing programs for cells, like software developers.

Did you ever wonder how a scientist from the real space program would envision Star Trek?

Ultimately, however, the scientists envision connecting lasers to a comb made with teeth of optic fibers.

But the list does not include many of the products that scientists once envisioned.