Ultrasonic

Levitation usually only works with particles or tiny objects, but scientists from the University of Bristol have developed a new “acoustic tractor beam” that can trap larger objects, possibly paving the way for contactless production lines or even human levitation.

​When it comes to obliterating blood clots, doctors have at least two options: intravascular ultrasound tools or tiny diamond-tipped drills. Unfortunately, both approaches have drawbacks. A new ultrasound "drill," however, may strike the perfect balance between the two.

Unlike experimental laser-based tractor beams that so far have only been able to influence targets at the microscopic level so far, researchers from the University of Dundee have created a tractor beam using ultrasonic energy to move macro (>1 cm) objects towards the energy source.

Injection molding is the widely preferred method for shaping plastic medical components, but now a new type of machine promises to slash energy and materials costs. Ultrasion's Sonorous 1G uses ultrasound to produce highly targeted and efficient heating to melt its plastic base material.

Holodeck, anyone? Researchers at Bristol University are developing a system known as UltraHaptics that uses ultrasonic force fields to project the tactile sensations of objects in midair. Currently used for a haptic computer interface, the system might eventually enable touchable holograms.

NASA is working on a new system for detecting the ultrasonic noise of an air leak on the International Space Station before it turns into a dangerous race against time.

Scientists have created a highly-focused beam of sound that could be used for non-invasive surgery.

An Israeli zoologist plans on studying bat behavior by equipping captive-raised bats with GPS, ultra-sonic microphones, and other sensors.

A new type of endoscope is said to be able to remove gallstones, reducing the need for gallbladder removals.

Scientists have coated paper with silver nanoparticles, to create a "killer paper" packaging that could lengthen the shelf life of foods.

Engineers at Bristol University say a real-life version of the sonic screwdriver could be created that would use sonic technology to open locks and undo screws.