Harm from Blue Light Exposure Increases with Age, research in Flies suggests

Flies under blue light

The damaging effects of daily, lifelong exposure to the blue light emanating from phones, computers and household fixtures worsen as a person ages, new research by Oregon State University suggests.

The study, published today in Nature Partner Journals Aging, involved Drosophila melanogaster, the common fruit fly, an important model organism because of the cellular and developmental mechanisms it shares with other animals and humans.

Jaga Giebultowicz, a researcher in the OSU College of Science who studies biological clocks, led a collaboration that examined the survival rate of flies kept in darkness and then moved at progressively older ages to an environment of constant blue light from light-emitting diodes, or LEDs.

The darkness-to-light transitions occurred at the ages of...

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Quantum Cryptography: Hacking is Futile

An international team has successfully implemented an advanced form of quantum cryptography for the first time. Moreover, encryption is independent of the quantum device used and therefore even more secure against hacking attempts.

The Internet is teeming with highly sensitive information. Sophisticated encryption techniques generally ensure that such content cannot be intercepted and read. But in the future high-performance quantum computers could crack these keys in a matter of seconds. It is just as well, then, that quantum mechanical techniques not only enable new, much aster algorithms, but also exceedingly effective cryptography.

Quantum key distribution (QKD) is secure against attacks on the communication channel, but not against attacks on or manipulations of the devices...

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Researchers 3D Print Sensors for Satellites

the sensor broken down into component parts
Caption: MIT researchers have demonstrated a 3D-printed plasma sensor for orbiting spacecraft that works just as well as much more expensive, semiconductor sensors. These durable, precise sensors could be used effectively on inexpensive, lightweight satellites known as CubeSats, which are commonly utilized for environmental monitoring or weather prediction.
Credits:Figure courtesy of the researchers and edited by MIT News

Cheap and quick to produce, these digitally manufactured plasma sensors could help scientists predict the weather or study climate change.

MIT scientists have created the first completely digitally manufactured plasma sensors for orbiting spacecraft...

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Seeing the light: Researchers develop new AI System Using Light to Learn Associatively

Seeing the light: researchers develop new AI system using light to learn associatively
Credit: James Tan You Sian

Researchers at Oxford University’s Department of Materials, working in collaboration with colleagues from Exeter and Munster, have developed an on-chip optical processor capable of detecting similarities in datasets up to 1,000 times faster than conventional machine learning algorithms running on electronic processors.

The new research published in Optica took its inspiration from Nobel Prize laureate Ivan Pavlov’s discovery of classical conditioning. In his experiments, Pavlov found that by providing another stimulus during feeding, such as the sound of a bell or metronome, his dogs began to link the two experiences and would salivate at the sound alone...

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