Virtual objects can be felt in mid-air thanks to a pioneering approach using ultrasound.

Tough new rules aimed at forcing more than one million cars from Beijing's roads during the Olympics come into force.

Thursday's mayoral and local election results keep pencils sketching across the Sunday papers.

The pioneers of ultrasound recall their work and marvel about how it is now an everyday diagnostic tool.

A Cornish wildlife charity is concerned at the number of dolphin strandings reported in the county recently.

Thorough cleaning used to be about soap and water but the government's hospital "deep clean" is all about cavitation and sound waves. So how can you apply the latest technology to your work desk?

Experts remain unconvinced by the hospital deep cleaning programme. Why?

Campaigners opposed to a new wind farm development warn it could have a "devastating impact".

University of Oxford scientists are trying to harness the energy released by collapsing bubbles to kill off cancer cells.

Ministers considers whether to ban or regulate the sale of electric training collars for dogs and cats.

Robert Adler, a US inventor best known for the creation of the TV remote control, dies aged 93.

High-pitched alarms that can only be heard by young people are being used to break up gangs of youth.

A high-pitched alarm designed to deter loitering youngsters is turned into a dance track with secret sections.

A look at what's making the headlines in Tuesday's morning newspapers.

Cyclists who wear protective helmets are more likely to be knocked down, a study suggests.

Howling and scrapping urban foxes force one London couple to shell out £1,000 on garden fencing.

A Devon city is set to introduce a dispersal order giving police powers to break up groups of anti-social teenagers.

Reaction from people in Japan and South Korea to North Korea's missile launch.

A deal is struck to develop innovative medical equipment which aims to reduce the risk to vascular surgery patients.

BBC News website readers sent in their pictures of the Empire State Building