Researchers have constructed a 'meta-mirror' device capable of perfectly reflecting sound waves in any direction. The proof-of-principle demonstration is analogous to looking directly into a mirror and only seeing the person next to you instead of your own face.
Researchers have developed a unique new device using the wonder material graphene that provides the first step toward ultrasensitive biosensors to detect diseases at the molecular level with near perfect efficiency.
An ultra-low power hybrid chip inspired by the brain could help give palm-sized robots the ability to collaborate and learn from their experiences. Combined with new generations of low-power motors and sensors, the new application-specific integrated circuit (ASIC) -- which operates on milliwatts of power -- could help intelligent swarm robots operate for hours instead of minutes.
Beth Parks has devised an astonishingly simple way to overcome a limitation of solar cells -- a bucket of water. She developed a frame that holds the solar cell with a bucket suspended on either end. By controlling the leak of water from one of the buckets, the solar cell shifts, tracking the arc of the sun throughout the day.
A new type of light-emitting diode lightbulb could one day light homes and reduce power bills, according to researchers who suggest that LEDs made with firefly-mimicking structures could improve efficiency.
A group of researchers has recently developed a new software aimed at the analysis of energy generation systems based on kites and drones. They used the software to study the behavior of these systems while transforming the kinetic energy of the wind into useful electrical energy.
Organic semiconductors are lightweight, flexible and easy to manufacture. But they often fail to meet expectations regarding efficiency and stability. Researchers are now deploying data mining approaches to identify promising organic compounds for the electronics of the future.
Scientists have developed a new method for scheduling the turning on and off of power generators that minimizes costs and ensures reliability while addressing the issues prevalent in multiple previous methods.
The heart's motion is so powerful that it can recharge life-saving devices, according to new research. Using a dime-sized invention, the heart's energy can be harnessed to power implantable devices, according to the study. Creating an energy source within the body could save millions of people who rely on pacemakers and other implantable devices from having to undergo surgery to replace batteries.
A team of scientists have identified the causes of degradation in a cathode material for lithium-ion batteries, as well as possible remedies. Their findings could lead to the development of more affordable and better performing batteries for electric vehicles.
Temperatures may climb and seas may rise, but the lights (and, undoubtedly, the air conditioning) will still be on in nations with high capacities for wind and solar energy. New research suggests that these electricity systems should work almost equally well in both historical and future European climates despite changing weather patterns.
Bandages infused with electricity can help heal wounds faster than typical bandages or antibiotics -- but for years, researchers have not really understood why. A recent study is offering new clues about the science behind those bandages, and researchers say the findings could help lead to better wound treatment.