Scientists accelerate airflow in mid-air

When a fan blows air across a room, the airflow typically decelerates and spreads out. Now in a new study, scientists have demonstrated the opposite: an airflow created by a carefully controlled ultrasound array can maintain ...

Nanotechnology gives green energy a green color

Solar panels have tremendous potential to provide affordable renewable energy, but many people see traditional black and blue panels as an eyesore. Architects, homeowners and city planners may be more open to the technology ...

Shock front probed by protons

A shock front is usually considered as a simple discontinuity in density or pressure. Yet in strongly shocked gases, the atoms are ionized into electrons and ions. The large difference in the electron pressure across the ...

Harddrive boost comes in layers of iron and cobalt

A*STAR researchers have created a promising new material from thin layers of iron and cobalt that could enable magnetic recording technologies such as hard drives to be boosted with microwaves.

Pulses of electrons manipulate nanomagnets and store information

Magnets and magnetic phenomena underpin the vast majority of modern data storage, and the measurement scales for research focused on magnetic behaviors continue to shrink with the rest of digital technology. Skyrmions, for ...

Strange silk: Why rappelling spiders don't spin out of control

The last time you watched a spider drop from the ceiling on a line of silk, it likely descended gracefully on its dragline instead of spiraling uncontrollably, because spider silk has an unusual ability to resist twisting ...

page 12 from 50