Scientists in China have built a device capable of reading letters only millimeters wide from over a kilometer away. The laser, which could very well become an active spy tool, has achieved this ...

Your eyesight might be good enough to confidently read the tiny text at the optometrist from a few meters away. But you're left in the dust by a new device recently demoed by researchers, which was ...

Inkjet printers cost less compared to the laser models, and you can get one from a leading brand under Rs. 10,000 on Amazon.

The full universe of printers covers a lot of territory, from portable photo printers to floor-standing behemoths. For purposes of this discussion, we'll stay with desktop models, which range in cost ...