Frequency

Browse ScienceInfo articles and explainers related to Frequency.

Topic archive

Articles about Frequency

298 published items.

Ultrasonic scanner in smart phones
Science invention

Ultrasonic scanner in smart phones

American scientists have invented the world's first ultrasound scanner for smartphones. This may be a revolution in health care for developing countries.

December 14, 2018
Receive messages from the dead
Science invention

Receive messages from the dead

An American company invented something that could help tombstones send messages of dead people to mobile phones of living people.

December 14, 2018
Messaging device through the ground
Science invention

Messaging device through the ground

Young man Alex Kendrick, 16, who lives in New Mexico, USA, has invented a device to help communicate from the cave, moving to the ground easily.

December 14, 2018
Radio antennas made from Plasma
Science invention

Radio antennas made from Plasma

A new study revealed that radio antennas made from electrically contaminated gas are a device that captures anti-interference. Gas contaminated with electricity - or pla…

December 14, 2018
Sound weapons
Science invention

Sound weapons

The ever-present sound weapon is still considered a non-lethal type, but it will only be a matter of time if Western ambitious projects succeed ...

December 14, 2018
Who will pioneer 3G technology in Vietnam?
Computer science

Who will pioneer 3G technology in Vietnam?

EVN Telecom, the second CDMA technology mobile network in Vietnam, has just become the first telecommunications service provider to be approved for 3G technology deploym…

December 14, 2018
Wireless network journey: From Wi-Fi to WiMax
Computer science

Wireless network journey: From Wi-Fi to WiMax

Wireless networking is one of the biggest advances in the computer industry. Last year, tens of millions of Wi-Fi devices were consumed and it is expected that this year…

December 13, 2018
This year, RFID entered the
Computer science

This year, RFID entered the

Radio frequency verification technology will be used to measure the run time of athletes at the 2008 Beijing Olympics, attached to the ball to arbitrate the judge proper…

December 13, 2018
Asia beat Europe on mobile TV
Computer science

Asia beat Europe on mobile TV

Asia will surpass Europe in terms of both speed and scope of mobile TV technology applications, especially when Europe is struggling to find frequency bands for ... tele…

December 13, 2018