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Packing thousands of straws together basically creates a low-tech pixel screen. Each straw acts as an independent light pathway, perfectly mimicking how data channels work.

3,693,246 views • 1 month ago •via X (Twitter)

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🚨 THE BIGGEST BOTTLENECK IN AI ISN'T COMPUTING POWER ANYMORE IT'S MOVING DATA. Instead of laying new cables, Chinese researchers have upgraded existing fiber infrastructure by doing two things at once: Using three wavelength bands (C + L + S) instead of the usual two. Using four cores inside each fiber instead of one. Each core acts like an independent highway, and each band acts like an extra lane on that highway. Together, they’ve reportedly increased transmission capacity per core by nearly 50% and overall data throughput by up to 5×. This matters enormously for AI. Modern AI clusters move terabits of data per second between thousands of GPUs. The biggest bottleneck is often not the chips themselves, but moving data fast enough between them. If you can push 5× more data through the same physical cables, you can train bigger models faster and reduce network congestion. Why this is significant: • It shows multi-core + extended spectrum technology moving from labs into real-world commercial use • The system has already run over 35 km of existing telecom network • It could be especially useful for submarine cables and large-scale data center interconnects • China is also eyeing it for its “Eastern Data, Western Computing” project The deeper implication: We’re reaching the physical limits of how much data we can push through single-core fibers using traditional methods. By combining spatial multiplexing (multiple cores) with spectral multiplexing (more wavelength bands), engineers are finding new ways to keep scaling bandwidth without having to dig up the planet to lay new cables. This kind of breakthrough is quiet but foundational it’s the kind of infrastructure upgrade that will determine how fast AI and cloud computing can actually grow in the coming years. The future of data movement might not require more cables. It might just require smarter ones. How important do you think multi-core and multi-band fiber will be for keeping up with AI’s exploding data demands? Follow for more frontier networking, photonics, and infrastructure technology.

TheNewPhysics

20,485 views • 1 month ago

‌Cheap LED bulbs may not be worth buying, mainly because their components such as capacitors may be of poor quality, resulting in a short life and easy failure. ‌ Here are the specific reasons: ‌Quality issues‌: Low-quality LED bulbs may use low-cost materials and processes, resulting in poor overall quality, such as poor quality capacitors that are easy to damage, poor heat dissipation materials and structures, which will affect the life and stability of the bulbs. ‌Health risks‌: Low-quality LED bulbs may have problems such as blue light hazards and flickering. Long-term use may cause damage to the eyes and skin, and even cause headaches, photosensitive epilepsy and other problems. ‌Safety hazards‌: Low-quality LED bulbs may be more prone to safety accidents such as short circuits and fires, posing a threat to personal and property safety. Cost issues: The price of each electronic component of LED bulbs is basically stable. The electronic components required for circuit protection design, temperature control design, etc. have a different quality and price, including heat dissipation materials, such as aluminum, copper, copper substrates, etc. The type of heat dissipation material used and the amount of use directly determine the cost increase or decrease. In other words, a better quality product must meet the requirements, and the cost is there, and it cannot be as low as a low-quality product. Therefore, when buying LED bulbs, it is recommended to choose products with more reasonable prices and guaranteed quality to ensure the use effect and safety. ‌ Of course, don't be superstitious about big brands. A large part of their high prices is advertising costs and lucrative profits. If you want to buy high-quality LED products at reasonable prices, you have to admit that you need to seek Chinese manufacturing; It must be emphasized that most of the brands that truly specialize in LED car light bulbs are in China. China has a complete LED car light industry chain, so according to customer needs, there are low to high quality, and our SNGL is the best LED car light bulb brand in China. The design and quality are not inferior to Philips at all. It has a history of more than ten years and is a professional LED car light bulb. In terms of component quality, LED chips, light pattern design, brightness, service life, heat dissipation materials and structure, adaptability, lighting effects, on-road test results, etc., our SNGL has performed well. You are welcome to buy it.

SNGL

30,112 views • 1 year ago

The Basics of Electromagnetic Waves: Electricity and magnetism can sit still, like static electricity in your hair or a magnet stuck to your fridge. But when they move and change, they actually create each other. Together, they team up to form invisible ripples of energy called electromagnetic waves. Unlike ocean waves or sound waves, which need water or air to ripple through, electromagnetic waves don't need any material at all. They can easily travel through the completely empty vacuum of space. Maxwell's Big Idea: In the 1860s and 1870s, a Scottish scientist named James Clerk Maxwell figured out how this works. He wrote down the math showing exactly how electricity and magnetism link together to make these travelling waves. Today, scientists call his famous rules Maxwell's Equations. Hertz Proves It: Later, a German physicist named Heinrich Hertz took Maxwell's ideas and brought them to life. He was the first person to actually create and catch radio waves. To honour his work, we use the word hertz to measure how fast a wave vibrates (one cycle per second). Hertz's experiments proved two massive ideas: Radio waves are just invisible light: He showed that radio waves travel at the exact same speed as light, proving that they are actually a form of light we just can't see. Going wireless: He finally figured out how to detach these energy fields from physical wires, allowing the waves to fly freely through the air exactly as Maxwell had predicted.

The Math Flow

37,313 views • 2 months ago