Ultrasonic Waves Could Create Images With Particles

Newly-developed acoustic technologies used to move particles and create haptic feedback in mid-air have stirred the imagination of many researchers. Unfortunately, the complexity of the equipment required to perform these functions has meant that air-shaping technology has been somewhat expensive and difficult. Now researchers in Germany have created a simple system that uses printed plastic…

Boost Your Slow Wifi with Your Old FM Radio

Living in a crowded neighborhood can seriously affect your WiFi speed. For those who don’t know, you and the people living around you, have a limited wireless frequency channels that are used by the WiFi networks to move the data. So, if there are more people around you using WiFi, there are good chances that…

This App Visualizes Waves Around You

iPhone App lets You See the Cell Towers, Wifi Signals and Satellites Around You Wireless devices like cellphones, tablets, and laptops send out signals that are all around us, but completely invisible to the naked eye. Electromagnetic radiation is everywhere that is transmitted from millions of towers and Wi-Fi routers, which create a pulsating and…

Gravitational Waves Observed For A Second Time

This year will be remembered as the year of LIGO, the US-based gravitational wave observatory. After February’smomentous discovery, an international team has now confirmed another observation of gravitational waves from colliding black holes. The incoming signal again pointed at two black holes merging, and scientists were able to infer that the black holes were between eight and 14 times the mass of…