Japan's mobile phone marvels go back to the future

In the Japan of 2020 a stressed-out salaryman may unwind from his hectic futuristic lifestyle by time-travelling back a few centuries and taking a virtual stroll through medieval Tokyo.

The strangest coincidence in physics: The AdS/CFT correspondence

Attempts to turn string theory into a workable theory of nature have led to the potential conclusion that our universe is a hologram—that what we perceive as three spatial dimensions is actually composed of only two. The ...

How do you build a holodeck?

What would it be like to step in an ordinary room and feel a gentle, computer-generated jungle breeze, with trees swaying nearby that you could touch?

A guide star lets scientists see deep into human tissue

Astronomers have a neat trick they sometimes use to compensate for the turbulence of the atmosphere that blurs images made by ground-based telescopes. They create an artificial star called a guide star and use its twinkling ...

Security ID cards with built-in holograms (w/ Video)

(PhysOrg.com) -- Plastic cards with security features are ubiquitous these days, having a wide variety of uses such as credit cards, employee cards, licenses, and so on. Many have holographic images, but they are relatively ...

page 4 from 9