Russia’s Cold War–era “Doomsday Radio” has broken from its usual pattern, transmitting an unusual volume of coded messages in ...

Three individuals who are accused of involvement in anomalous flood control projects are coordinating with Philippine embassies for their surrender, National Bureau of Investigation (NBI) Lito Magno ...

Sennheiser is back with a premium pair of on-the-go headphones, the HDB 630, launched in India at ₹44,990. The brand is pitching these as wireless headphones for people who want everything: ...

Sennheiser on Friday (November 28, 2025) launched its premium wireless headphones, the HDB 630, with active noise cancellation in India for high-fidelity sound. Sennheiser HDB 630 uses a newly ...

December 19, 2025 • Nick Harkaway grew up hearing his dad read drafts of his George Smiley novels. He picked up le Carré's beloved spymaster character in the novel Karla's Choice. Originally broadcast ...

Smells are processed in a region of the brain called the olfactory bulb. It has been found that stimulating this bulb with ultrasound can make humans perceive a variety of odors. Lev Chizhov and his ...

Abstract: In this paper, a sub-kHz-linewidth wavelength-tunable single-frequency ring-cavity fiber laser operating in C- and L-band is demonstrated experimentally. In our design, a single-longitudinal ...

Abstract: Due to the specific communication requirements of high-altitude platforms, such as research institutes and monitoring stations in mountainous areas, as well as aircraft, voltage sources ...

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