What Does SOS Stand For? It's Probably Not What You Think
Many believe SOS has a specific meaning, but you'd be surprised to know that the letters aren't an acronym at all. That said, ...
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Wireless Signals
The distress signal CQD originated from the signal CQ, expressing "seeking you," or "all stations." The signal CQ was commonly used among wireless operators -- and land-based telegraphers before ...
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Boosting Hydrophobic Coatings with Quantum Dots
The CQD suspension produced a smooth hydrophobic layer, resulting in a water contact angle of 110°, confirming improved coating quality. This approach significantly enhanced PVA's hydrophobic ...