Physics
We summarize the week's scientific breakthroughs every Thursday.
- Physics
Nanobots walk ‘n’ roll
A molecule that waddles on stubby feet and another that drives on ball-like wheels demonstrate scientists' increasing control over the usually haphazard motion of molecules on surfaces.
- Materials Science
Brainy bandages
Researchers have taken a step toward smart bandages that would indicate the presence of an infection in a wound.
- Materials Science
Slim and Sturdy Solar Cells: Nanocrystals offer path to electricity
Researchers have crafted an ultrathin solar cell out of inorganic nanocrystals that have several of the advantages of plastic but avoid some of its shortcomings.
- Materials Science
Explosive tempers
Researchers have demonstrated that carbon nanotubes, once ignited, can detonate explosives.
- Materials Science
Filling in the blanks
Scientists have added precision to a patterning technique called microcontact printing.
- Materials Science
Heart of the Matter: Scanning scope digs deeper into microchips
Researchers have developed a noninvasive imaging technique that lets them see deep inside a microchip.
- Materials Science
Carbon nanotubes get nosy
Researchers have demonstrated that individual nanotubes, decorated with DNA, can rapidly detect a number of gases.
- Physics
Transistor laser flaunts twin talents
A transistor that doubles as a laser can now operate at room temperature, bringing it to the verge of practical applications.
- Physics
Champion of strength is forged in mighty anvil
A new form of carbon created in an anvil and composed of microscopic needles of diamond has emerged as the strongest known material.
- Materials Science
Sun and Sand: Dirty silicon could supply solar power
Scientists have proposed a way to control the distribution of contaminants in silicon, potentially opening up the use of cheaper starting materials for making solar cells.
- Materials Science
Fog Be Gone: Nanocoating clarifies the view
Scientists have created a nanocoating that prevents fogging and reflection on glass surfaces.
- Physics
Warm Ice: Frozen water forms at room temperature
Ultrathin films of ice observed at room temperature and ordinary atmospheric pressure should be more widespread than previously thought, according to new experiments indicating that weaker-than-expected electric fields induce such freezing.
