Energy & Green Tech

Ultrasound can enable faster, more sustainable battery recycling

Known by expectant parents as the technology that enables them to see their child for the first time, ultrasound can be used at extremely low frequencies to serve an entirely different purpose. Researchers at KTH Royal Institute ...

Consumer & Gadgets

Waiting for Wiliot's battery-free sticker sensor tag

A Bluetooth sensor tag with an ARM processor has tech watchers thinking overtime about what this little wonder might achieve. This is a battery-free product. Oh, did you hear that, "battery-free"? Those two words are right ...

Engineering

Engineers imitate human hands to make better sensors

An international research team has developed "electronic skin" sensors capable of mimicking the dynamic process of human motion. This work could help severely injured people, such as soldiers, regain the ability to control ...

Telecom

Here's the real reason to turn on airplane mode when you fly

We all know the routine by heart: "Please ensure your seats are in the upright position, tray tables stowed, window shades are up, laptops are stored in the overhead bins and electronic devices are set to flight mode."

Hardware

Silicon chip propels 6G communications forward

A team of scientists has unlocked the potential of 6G communications with a new polarization multiplexer. Terahertz communications represent the next frontier in wireless technology, promising data transmission rates far ...

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Frequency

Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency. The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency. For example, if a newborn baby's heart beats at a frequency of 120 times a minute, its period (the interval between beats) is half a second.

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