A new method for mopping up and reusing dangerous pollutants from the environment could result in longer-lasting rechargeable batteries.
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Rayleigh scattering
RAY-lee) is the scattering or deflection of light, or other electromagnetic radiation, by particles with a size much smaller than the wavelength of the radiation. For light frequencies well below the resonance frequency of the scattering medium (normal dispersion regime), the amount of scattering is inversely proportional to the fourth power of the wavelength (e.g., a blue color is scattered much more than a red color as light propagates through air). The phenomenon is named after the 19th-century British physicist Lord Rayleigh (John William Strutt). [ 1 ].
New genetic biomarker flags aggressive brain tumors
Clinicians typically classify meningiomas — the most common type of brain tumor — into three grades, ranging from slow-growing to aggressive.
But a new multi-institutional study suggests that appearances may be deceiving. If a tumor shows activity in a gene called telomerase reverse transcriptase (TERT), it tends to recur more quickly, even if it looks low-grade under the microscope.
Researchers discover that when meningiomas, a type of brain tumor, shows activity in the TERT gene, it tends to recur more quickly.
Nvidia CEO: How I use AI in my own life to be more productive—it’s ‘really fantastic’ at one specific task
Nvidia CEO Jensen Huang says he uses AI chatbots like OpenAI’s ChatGPT or Google’s Gemini to write his first drafts for him.
