Science news

Zeptojoule Nanomagnetic Switch Measures Fundamental Limit of Computing – IEEE Spectrum

No matter how efficient we make our transistors and memory cells, they will always consume a fixed but tiny amount of energy set by the second law of thermodynamics, a new study suggests. Now the question is how close our real-world devices can get to this fundamental value. “At the end of the day, it confirms that Landauer’s theory seems to →

Chemoelectronics: Nanoparticle Diodes and Devices That Work When Wet – IEEE Spectrum

Whether they’re for sensors in artificial skin that demands flexibility or for wearable electronics where the circuits must withstand our sweat, silicon-based chips aren’t always up to the task. Now, an international research team has developed a way to fabricate flexible, water-loving logic circuits and sensors without the need of semiconductors. Instead, what the researchers have done is coat gold →

Two new satellites from Finland

According to Space Directory of Finland Finland entered space activities in the mid 1980’s and joined the ESA in 1987. Finnish industry and science have played an important role in many European satellite missions and there are Finnish Companies in Space Technology Industry, but we have not had our own satellite. It seems that in →

Flexible Optical Metasurfaces Promise “Smart” Contact Lenses – IEEE Spectrum

The name of the game in optical metasurfaces is shortening the wavelengths of light. This yields devices that can manipulate light for information processing and also reduce the bulk of the devices based on traditional optics. Metasurfaces have been pretty good at offering small, flat features, but the integrated metallic resonators they use to filter light according →

Experiment Provides Further Evidence That Reality Doesn’t Exist Until We Measure It | IFLScience

Physicists have succeeded in confirming one of the theoretical aspects of quantum physics: Subatomic objects switch between particle and wave states when observed, while remaining in a dual state beforehand. In the bizarre world of quantum mechanics, events rippling back in time may not seem that much stranger than things like “spooky action at a →