Tag Archives: light

What Is the Speed of Light?

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, …

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First Glimpse of Venus

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 …

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Arctic Woolly Mammoth

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 …

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Types of Light Bulbs

  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, …

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Light Dark Matter

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 …

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Martian Storms Zodiacal Light

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 …

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Springhares Glow Orange

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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Google Dark Theme

Search Engine Land’s daily brief features daily insights, news, tips, and essential bits of wisdom for today’s search marketer. If you would like to read this before the rest of the internet does, sign up here to get it delivered to your inbox daily. Good morning, Marketers, SEOs and PPCs …

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Ancient Corn Domestication

The domestication of corn (Zea mays ssp. mays), a global food staple with great economic and cultural importance, began in southwestern Mexico 9,000 years ago and humans dispersed this important grain to South America by at least 7,000 years ago as a partial domesticate. South America served as a secondary …

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Low Light Foraging Bees

Two Australian bee species, Reepenia bituberculata and Meroglossa gemmata, have adapted their vision for night-time conditions, according to a paper published in the Journal of Hymenoptera Research; both species possess enlarged compound and simple eyes which allow more light to be gathered when compared to their daytime kin. Meroglossa gemmata. …

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