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Like the teeth of a comb, a microcomb consists of a spectrum of evenly distributed light frequencies. Optical atomic clocks can be built by locking a microcomb tooth to a ultranarrow-linewidth laser, which in turn locks to an atomic transition with extremely high frequency stability. That way, frequency combs act like a bridge between the atomic transition at an optical frequency and the clock signal at a radio frequency that is electronically detectable for counting the oscillations – enabling extraordinary precision. The researchers’ photonic chip, on the righthand side of the image, contains 40 microcombs generators and is only five millimeters wide.

Tiny Light-Based Chips Could Make Your GPS Accurate to the Centimeter

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Transdermal patch infographic

Simple Skin Patch Could Control Next-Gen Cell Therapies for Diabetes

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View of Palmyra with the Temple of Bel, Syria

80% of Ancient Wonder Palmyra Destroyed In Wake of Assad Ouster

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A happy looking senior woman

Happy Mind, Active Body: Mental Wellbeing Helped Older Adults Stay Active During Pandemic

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MIT chemical engineers designed a two-part catalyst that can convert methane gas to useful products. The catalyst consists of iron-modified aluminum silicate plus an enzyme called alcohol oxidase (enzyme not pictured).

New Catalyst Turns Problematic Methane into Useful Materials at Room Temperature

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Functions of the gut microbiome. Created with BioRender.com. SCFA, short chain fatty acids.

Gut Microbiome Emerges as Key Player in Multiple Chronic Diseases

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A toothpaste-based transistor is the latest innovation from the research team at the Istituto Italiano di Tecnologia in Milan.

Edible Electronics Advance: Toothpaste-Based Transistor Developed

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An image of biomolecules, such as nucleic acids, lipids and proteins, in live cells using an imaging technique called infrared (IR) transmission microscopy. Credit: Y. Lee/NIST

New IR Imaging Technique Reveals Biomolecules in Living Cells

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Visitors are often surprised and amused by the results of the Cybernetic Humanity Studio’s facial morphing technology.

Face-Morphing Study Challenges Core Ideas About Self-Recognition

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Glia-enriched cultures from a primary progressive multiple sclerosis iPSC line showing astrocytes (yellow), oligodendrocytes (cyan), and neurons (magenta)

Stem Cell Models Uncover Crucial Role of Brain Cells in Multiple Sclerosis

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Men on bed

Breakthrough Coating for Antipsychotics Cuts Weight Gain and Boosts Effectiveness

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Harbor porpoises need to eat 2000 fish a day to meet their energy needs. Not because it's demanding to swim, dive and hunt as they are streamlined and very energy efficient. They simply need vast amounts of energy to keep warm in the cold water.

Noisy Motorboats Disrupt Hunting and Threaten Survival of Denmark’s Harbor Porpoises

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