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Wednesday 12 August 2026 15:44:06 GMT

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⚘𝙈𝘼𝙁𝙄𝙔𝘼ᴳᵒᵈ〗 :

জয় বাংলা ১২০ এপিএস

2026-08-12 15:55:58

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sr joy :

bai tor camrar jum bari dile kolijai agat lage 😯

2026-08-13 00:56:38

0

💥-Tanvir-💥 :

🖤🖤🖤

2026-08-15 11:18:30

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ফরিদ সেনেটারী এন্ড ইলেট্রিক :

🤗🤗🤗

2026-08-13 16:32:33

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Mdminhaj Md :

❤️❤️❤️

2026-08-13 11:33:19

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𝗦𝗮𝗵𝗮𝗿𝗶𝗮 𝗛𝗮𝘀𝗮𝗻 :

🖤🖤🖤

2026-08-13 10:51:39

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𝙏𝘼𝙇𝙃𝘼?🪐 :

🥰🥰🥰

2026-08-13 05:33:19

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Ꮢ Ꭵ Ꭾ Ꭷ Ꮑ :

🥰🥰🥰

2026-08-13 05:30:51

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👑 𝐕𝐎𝐈𝐂𝐄 ᵒᶠ 𝐌𝐀𝐑𝐔𝐅 👑 :

🥰🥰🥰

2026-08-12 15:54:05

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✅সাপোর্ট করলে সাপোর্ট পাইবা ✅ :

❤️‍🩹❤️‍🩹❤️‍🩹💝💝💝💖💖💖

2026-08-12 15:51:26

1

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Researchers John Spiesberger of the University of Pennsylvania and Eugene Terray of Woods Hole published the work in Physical Review E on August 18, 2026. It grew out of a practical problem: figuring out exactly where whales are by timing their calls with underwater microphones. What they discovered A fin whale’s low-frequency call can be detected by a single hydrophone from roughly 100 km (62 miles) away. Normally, researchers assume that underwater sound is traveling at around 1,500 meters per second. But Spiesberger’s calculations started producing bizarre results. Some whale sounds appeared to be traveling around 1,000 m/s, while others appeared to travel at 3,000 m/s or more — roughly twice the normal speed of sound in seawater. He initially assumed his computer program was broken. It wasn’t. The culprit was something called temporal interference. Imagine a whale close to the ocean surface: Whale → hydrophone One portion of the call travels directly to the underwater microphone. Whale → surface → hydrophone Another portion travels upward, reflects off the ocean surface, and then reaches the same microphone slightly later. Those two versions of the same sound overlap. Because they’re slightly out of phase, they can interfere in such a way that the peak of the combined sound wave appears earlier than you’d expect. So did the whale’s sound actually travel at 3,000 m/s? That’s the crucial part: not in the ordinary sense. The interference reshapes the combined wave. Its strongest energy peak can shift forward, making calculations based on that peak report an apparently “supersonic” propagation speed. Think of two overlapping ocean waves. Their interference can cause a new crest to suddenly appear farther ahead. That doesn’t mean a particular chunk of water raced from the old crest to the new one at enormous speed. The pattern moved because the waves combined differently. Something analogous is happening with the whale call. And this isn’t merely academic. If scientists assume the apparent arrival time represents ordinary sound propagation, their estimate of a whale’s location can be wrong by hundreds of meters. And here’s where Einstein enters the story The researchers realized the same mathematics can apply to light. Under certain interference conditions, the peak/energy of a light wave could appear to reach a detector at a superluminal — faster-than-light — speed. That sounds like Einstein has a problem. He doesn’t. Special relativity doesn’t simply say that nothing can ever appear to move faster than light. The critical restriction is that usable information cannot be transmitted faster than light in a way that violates causality. Spiesberger and Terray showed that although the energy peak can arrive apparently superluminally, determining that it arrived requires enough time that information still cannot be communicated faster than light. #whale #Science #sound #animal #speed

Researchers John Spiesberger of the University of Pennsylvania and Eugene Terray of Woods Hole published the work in Physical Review E on August 18, 2026. It grew out of a practical problem: figuring out exactly where whales are by timing their calls with underwater microphones. What they discovered A fin whale’s low-frequency call can be detected by a single hydrophone from roughly 100 km (62 miles) away. Normally, researchers assume that underwater sound is traveling at around 1,500 meters per second. But Spiesberger’s calculations started producing bizarre results. Some whale sounds appeared to be traveling around 1,000 m/s, while others appeared to travel at 3,000 m/s or more — roughly twice the normal speed of sound in seawater. He initially assumed his computer program was broken. It wasn’t. The culprit was something called temporal interference. Imagine a whale close to the ocean surface: Whale → hydrophone One portion of the call travels directly to the underwater microphone. Whale → surface → hydrophone Another portion travels upward, reflects off the ocean surface, and then reaches the same microphone slightly later. Those two versions of the same sound overlap. Because they’re slightly out of phase, they can interfere in such a way that the peak of the combined sound wave appears earlier than you’d expect. So did the whale’s sound actually travel at 3,000 m/s? That’s the crucial part: not in the ordinary sense. The interference reshapes the combined wave. Its strongest energy peak can shift forward, making calculations based on that peak report an apparently “supersonic” propagation speed. Think of two overlapping ocean waves. Their interference can cause a new crest to suddenly appear farther ahead. That doesn’t mean a particular chunk of water raced from the old crest to the new one at enormous speed. The pattern moved because the waves combined differently. Something analogous is happening with the whale call. And this isn’t merely academic. If scientists assume the apparent arrival time represents ordinary sound propagation, their estimate of a whale’s location can be wrong by hundreds of meters. And here’s where Einstein enters the story The researchers realized the same mathematics can apply to light. Under certain interference conditions, the peak/energy of a light wave could appear to reach a detector at a superluminal — faster-than-light — speed. That sounds like Einstein has a problem. He doesn’t. Special relativity doesn’t simply say that nothing can ever appear to move faster than light. The critical restriction is that usable information cannot be transmitted faster than light in a way that violates causality. Spiesberger and Terray showed that although the energy peak can arrive apparently superluminally, determining that it arrived requires enough time that information still cannot be communicated faster than light. #whale #Science #sound #animal #speed

#عزيز_غالي من المعادن للصناعة: الطريق باش يولي المغرب رائد فالسوق العالمي

#عزيز_غالي من المعادن للصناعة: الطريق باش يولي المغرب رائد فالسوق العالمي

Dear god let me go back

Dear god let me go back

- Việt Nam sắp có thêm một công trình vượt biển mới dài 6km do Sun Group đầu tư ở hòn đảo đẹp nhất châu Á sở hữu 3 kỷ lục Guinness .

- Việt Nam sắp có thêm một công trình vượt biển mới dài 6km do Sun Group đầu tư ở hòn đảo đẹp nhất châu Á sở hữu 3 kỷ lục Guinness . "Sun Group chuẩn bị triển khai tuyến cáp treo An Thới - Hòn Thơm số 2 tại Phú Quốc với tổng vốn hơn 4.371 tỷ đồng, dài 6 km và đạt công suất phục vụ tới 28.000 lượt khách mỗi ngày. Trước đó, Sun Group đã đưa vào vận hành tuyến cáp treo số 1 dài gần 7,9 km từ đầu năm 2018 với tổng vốn khoảng 5.000 tỷ đồng, từng được Tổ chức Kỷ lục Thế giới Guinness chứng nhận là cáp treo 3 dây dài nhất thế giới. Việc đầu tư thêm tuyến cáp treo số 2 cùng hệ thống LRT được kỳ vọng sẽ hoàn thiện hạ tầng giao thông, đưa Hòn Thơm trở thành trung tâm du lịch chất lượng cao quy mô quốc tế." #captreohonthom2 #captreophuquoc #captreo #hatangphuquoc #apecphuquoc

لا تيأس إذا تأخر عنك ما تحب ♥️ أعدة نشر اكسبلورررررررر #صلوا_على_رسول_الله الشيخ محمد سيد حاج رحمه الله #الشيخ_محمد_سيد_حاج_رحمه_الله #السودان #اكسبلور #islamic_video

لا تيأس إذا تأخر عنك ما تحب ♥️ أعدة نشر اكسبلورررررررر #صلوا_على_رسول_الله الشيخ محمد سيد حاج رحمه الله #الشيخ_محمد_سيد_حاج_رحمه_الله #السودان #اكسبلور #islamic_video

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