Abstract: Reflection photoplethysmography (PPG) using 530 nm (green) wavelength light has the potential to be a superior method for monitoring heart rate (HR) during normal daily life due to its ...

Our home is full of candles. They scent the air, soften the room and steady the heart. There is something quietly astonishing about a thin wick holding flame against the dark. A candle does not shout ...

JPMorgan forecasts Bitcoin could reach $170,000 by 2026, with $94,000 as the production-cost floor. The bank’s prediction relies on Bitcoin’s volatility ratio narrowing relative to gold’s $28.3 ...

At the Tankanyika Wildlife Park in Goddard, Kansas, zookeeper Sierra always has her hands full. She cares for Mars, a baby pygmy hippo with a mind of his own who rarely does anything she asks; she’s ...

Mirror tiles for walls are a versatile and glamorous interior design element, offering a powerful way to dramatically transform any room. Far beyond simple reflections, these mirrored accents are a ...

1 Department of Agricultural Technology, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathumthani, Thailand 2 Department of Applied Thai Traditional Medicine, Faculty of ...

An artist's illustration of the Voyager spacecraft.NASA / JPL-Caltech In late 2026, NASA’s iconic Voyager 1 spacecraft will reach an impressive milestone. The probe is set to become the first ...

Your AI identity is yours. A portable JSON file that works across Claude, Antigravity, Ollama, and any AI — stored on your machine, not theirs.

The winners of the Nature Photographer of the Year 2025 have been announced, celebrating the very best in nature photography from around the world. From breathtaking wildlife moments to stunning ...

Not many things have felt crystal clear lately, as there are currently five retrograding planets, and Mercury is one of them. This retrograde has been mixing mental signals for the past week and a ...

Use the paper to create a mural of the group’s shared experience. The group can either plan out what the mural will look like using everyone’s suggestions and ideas or each particpant can just start ...