Tag Archives: light

A paper published this week in the journal Science Advances demonstrates an optical computing concept that could greatly accelerate AI, while reducing energy costs and heat production. Intriguingly, it does all this by way of an “infinity mirror.”Optical computers have several intrinsic advantages, provided they work. Not only does light …

The world’s near-ubiquitous reliance on digital technology means there are more ways to spy on someone today than, say, half a century ago. What isn’t new is that many of these modern surveillance techniques are wielded by law enforcement, private security contractors, and federal agencies. These entities are reluctant to …

We’ve come a long way from the luminiferous aether. The speed of light, sometimes abbreviated as c, is a universal maximum posted speed that causality will enforce. It’s the greatest speed at which any known substance or object can travel. Even light itself can’t exceed its own speed limit: specifically, …

According to NASA, the Parker Solar Probe has taken the first images ever taken of Venus’ surface from orbit in visible light. While we’ve imaged the surface with other types of instruments, visible light hasn’t been available from orbit due to the thick cloud cover swirling over the planet. The …

Scientists have examined isotopes collected from the tusk of a woolly mammoth (Mammuthus primigenius) that lived in Alaska approximately 17,100 years ago, during the latest Ice Age, to elucidate its movements and diet; this included its time — likely with a herd — as an infant and juvenile, then as …

  by Just Energy | EducationalWhat’s considered to be the most valuable invention since human-made fire? The electric light bulb, of course! This significant development impacted the Industrial Revolution, allowing for longer working hours, safer evening travel conditions, and social order after dark.   If you’re looking for information about light bulbs, …

Dark matter with masses below 1 GeV can scatter, become captured, deposit annihilation energy, and increase the heat flow within extrasolar gas giants, rogue planets and brown dwarfs peppered throughout the Milky Way Galaxy, according to a paper published in the journal Physical Review Letters. Leane Smirnov suggest light dark …

The zodiacal light is sunlight reflected by interplanetary dust in the inner Solar System. Variations in the zodiacal light with ecliptic latitude reveal discrete bands of dust orbiting near the ecliptic plane. NASA’s Juno spacecraft, in transit from Earth to Jupiter, recorded a sufficient number of impacts with these dust …

Scientists have discovered a vivid porphyrin-based biofluorescence in two species of springhares, Pedetes capensis and Pedetes surdaster. Captive Pedetes capensis photographed under visible light (three insets) and under 395 nm UV light with a 470 nm longpass filter to documenting the orange to red biofluorescence ( 650 nm) of springhare. Images …

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