Tiny spy walking in your shoes

RFID (aka Radio Frequency Identification) is a method of automatic identification, based on a silicon computer chip and an antenna, which are built in the so-called RFID tag. A remote reader can scan it and send information to a database. RFID tags can be incorporated...

AMOEBA: a device which writes on water

Researchers from a Japanese research centre, Akishima Laboratory, built a strange device which uses controlled waves moving up and down to generate letters on water surface. The device is called AMOEBA (Advanced Multiple Organized Experimental Basin). In the video...

The past lives of websites

You decided to build a website, you bought a domain name and a hosting package, you started your online activity and now you try hard to bring some good traffic in. But did you ever think if the domain you bought was ever used before? How did your site look in a past...