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Widely use for guitar effect pedal knobs, amplifier control knobs, guitar parts accessories, and for controlling the effect of a variety of functio...

Widely use for guitar effect pedal knobs, amplifier control knobs, guitar parts accessories, and for controlling the effect of a variety of functio...

Stay clean, stay charged15W Wireless Output, 4x 260-280 NM LEDsCell is an expandable UV sanitizer and wireless charger. Cell's four UVC LEDs safely removes 99.9% of bacteria and 99.9% of viruses from your phone or other items in just 1-minute. And then when you're done cleaning, charge up your Qi-enabled device with two powerful 15W wireless charging coils on the top of Cell. With its versatile design, it adjusts for multiple charging positions - flat, horizontal (for when you're watching Netflix) or vertical (for FaceTime). And it's portable enough to take between your workspace, home, or office.The Power of UV - Ultra-fast, Powerful, PortableCleans Your Phone in 1 Minute4 UV-C LEDs safely cleans your phone.A Safe Way to SanitizeCleans without heat, liquid, or chemicals that can damage devices.Fits All Phones, AirPods & Apple WatchFits all mobile phones and other Apple accessories for easy cleaning.2x 15W Wireless Charging CoilsFast-wireless charging and two coils give you an XL charging area.Turns into Wireless Charging StandExpandable pop-up design lets you charge at three different angles.Cleans Nearly AnythingExpandable pop-up design lets you charge at three different angles.UV Cleans In 1-MinThe four powerful UV-C LEDs inside Cell have been clinically proven to kill 99.9% of bacteria and viruses on the surface of your phone or other devices in just 60 seconds.Wirelessly Power Your DeviceWhen you're not sanitizing your smartphone, power it up. Cell's charging surface contains two 15W wireless charging coils to fast-charge any Qi-enabled device.

For the modern tech-savvy individual who values hygiene and convenience, the Ampere Cell UV Sanitizer and Wireless Charger is an essential accessory. This innovative device combines the power of UV-C light with the ease of wireless charging, ensuring your electronic devices are not only charged but also sanitized effectively.Harnessing the germicidal properties of UV-C light, the Cell UV Sanitizer is equipped with four robust 260-280 NM LEDs that have been clinically proven to eliminate 99.9% of bacteria and viruses. This effective sanitization process takes a mere 60 seconds, allowing you to quickly disinfect your phone, tablet, or other portable devices without the use of heat, liquids, or harsh chemicals that could potentially damage your electronics.Beyond its sanitizing capabilities, the Cell UV Sanitizer shines with its dual 15W wireless charging coils. These coils provide a generous and efficient charging area, suitable for any Qi-enabled device, delivering a rapid power boost whenever needed. The versatile and expandable design of the Cell allows for multiple charging positions - lay it flat, prop it horizontally for uninterrupted video streaming, or vertically for hands-free video calls.The durable and portable nature of this device makes it a perfect companion for those on the go, easily transitioning between your workspace, home, or office. Additionally, the glow-in-the-dark feature adds a touch of convenience, allowing you to locate and utilize the charger even in low-light conditions.Designed to accommodate a wide range of devices, from all mobile phones to AirPods and the Apple Watch, the Cell UV Sanitizer ensures that your most-used gadgets remain clean and fully charged. Whether you're at home or on the move, the Cell UV Sanitizer and Wireless Charger by Ampere stands out as a durable, convenient, and portable solution for maintaining the cleanliness and battery life of your electronic essentials.

The Monge-Ampère equation has attracted considerable interest in recent years because of its important role in several areas of applied mathematics. Monge-Ampère type equations have applications in the areas of differential geometry, the calculus of variations, and several optimization problems, such as the Monge-Kantorovitch mass transfer problem. This book stresses the geometric aspects of this beautiful theory, using techniques from harmonic analysis – covering lemmas and set decompositions.

Three quarters of a century elapsed between Ampère's definition of electrodynamics and Einstein's reform of the concepts of space and time. The two events occurred in utterly different worlds: the French Academy of Sciences of the 1820s seems very remote from the Bern patent office of the early 1900s, and the forces between two electric currents quite foreign to the optical synchronization of clocks. Yet Ampère's electrodynamics and Einstein's relativity are firmly connected through an historical chain involving German extensions of Ampère's work, competition with British field conceptions, Dutch synthesis, and fin de siècle criticism of the aether-matter connection. Darrigol's book retraces this intriguing evolution, with a physicist's attention to conceptual and instrumental developments, and with an historian's awareness of their cultural and material embeddings. This book exploits a wide range of sources, and incorporates the many important insights of other scholars. Thorough accounts are given of crucial episodes such as Faraday's redefinition of charge and current, the genesis of Maxwell's field equations, or Hertz' experiments on fast electric oscillations. Thus emerges a vivid picture of the intellectual and instrumental variety of nineteenth century physics. The most influential investigators worked at the crossroads between different disciplines and traditions: they did not separate theory from experiment, they frequently drew on competing traditions, and their scientific interests extended beyond physics into chemistry, mathematics, physiology, and other areas. By bringing out these important features, this book offers a tightly connected and yet sharply contrasted view of early electrodynamics.

Three quarters of a century elapsed between Ampère's definition of electrodynamics and Einstein's reform of the concepts of space and time. The two events occurred in utterly different worlds: the French Academy of Sciences of the 1820s seems very remote from the Bern patent office of the early 1900s, and the forces between two electric currents quite foreign to the optical synchronization of clocks. Yet Ampère's electrodynamics and Einstein's relativity are firmly connected through an historical chain involving German extensions of Ampère's work, competition with British field conceptions, Dutch synthesis, and fin de siècle criticism of the aether-matter connection. Darrigol's book retraces this intriguing evolution, with a physicist's attention to conceptual and instrumental developments, and with an historian's awareness of their cultural and material embeddings. This book exploits a wide range of sources, and incorporates the many important insights of other scholars. Thorough accounts are given of crucial episodes such as Faraday's redefinition of charge and current, the genesis of Maxwell's field equations, or Hertz' experiments on fast electric oscillations. Thus emerges a vivid picture of the intellectual and instrumental variety of nineteenth century physics. The most influential investigators worked at the crossroads between different disciplines and traditions: they did not separate theory from experiment, they frequently drew on competing traditions, and their scientific interests extended beyond physics into chemistry, mathematics, physiology, and other areas. By bringing out these important features, this book offers a tightly connected and yet sharply contrasted view of early electrodynamics.

Three quarters of a century elapsed between Ampère's definition of electrodynamics and Einstein's reform of the concepts of space and time. The two events occurred in utterly different worlds: the French Academy of Sciences of the 1820s seems very remote from the Bern patent office of the early 1900s, and the forces between two electric currents quite foreign to the optical synchronization of clocks. Yet Ampère's electrodynamics and Einstein's relativity are firmly connected through an historical chain involving German extensions of Ampère's work, competition with British field conceptions, Dutch synthesis, and fin de siècle criticism of the aether-matter connection. Darrigol's book retraces this intriguing evolution, with a physicist's attention to conceptual and instrumental developments, and with an historian's awareness of their cultural and material embeddings. This book exploits a wide range of sources, and incorporates the many important insights of other scholars. Thorough accounts are given of crucial episodes such as Faraday's redefinition of charge and current, the genesis of Maxwell's field equations, or Hertz' experiments on fast electric oscillations. Thus emerges a vivid picture of the intellectual and instrumental variety of nineteenth century physics. The most influential investigators worked at the crossroads between different disciplines and traditions: they did not separate theory from experiment, they frequently drew on competing traditions, and their scientific interests extended beyond physics into chemistry, mathematics, physiology, and other areas. By bringing out these important features, this book offers a tightly connected and yet sharply contrasted view of early electrodynamics.

In this authoritative biography, James Hofmann examines the extraordinary life of André-Marie Ampère, who made original, significant contributions to mathematics and chemistry and is renowned for his new branch of physics - electrodynamics. A member of the Académie des Sciences, and professor at the École Polytechnique, his accomplishments are remarkable in view of his tragic personal life. One of the elite of early nineteenth-century Parisian science, yet having no formal education, he embraced the scientific optimism of the Enlightenment, and the Catholic faith. This combination of intellectual expectation and emotional spirituality made Ampère's genius both destructive and extraordinarily creative. This, the only biography available in the English language, illuminates the scientific contributions of an individual and his epoch, and provides a fascinating insight into the workings of the scientific mind.

The nineteenth century was a formative period for electromagnetism and electrodynamics. Hans Christian Ørsted’s groundbreaking discovery of the interaction between electricity and magnetism in 1820 inspired a wave of research, led to the science of electrodynamics, and resulted in the development of electromagnetic theory. Remarkably, in response, André-Marie Ampère and Michael Faraday developed two incompatible, competing theories. Although their approaches and conceptual frameworks were fundamentally different, together their work launched a technological revolution—laying the foundation for our modern scientific understanding of electricity—and one of the most important debates in physics, between electrodynamic action-at-a-distance and field theories. In this foundational study, Friedrich Steinle compares the influential work of Ampère and Faraday to reveal the prominent role of exploratory experimentation in the development of science. While this exploratory phase was responsible for decisive conceptual innovations, it has yet to be examined in such great detail. Focusing on Ampère’s and Faraday’s research practices, reconstructed from previously unknown archival materials, including laboratory notes, diaries, letters, and interactions with instrument makers, this book considers both the historic and epistemological basis of exploratory experimentation and its importance to scientific development.Winner of the 2017 Ungar German Translations Award from the American Translators Association

This volume is intended to allow mathematicians and physicists, especially analysts, to learn about nonlinear problems which arise in Riemannian Geometry. Analysis on Riemannian manifolds is a field currently undergoing great development. More and more, analysis proves to be a very powerful means for solving geometrical problems. Conversely, geometry may help us to solve certain problems in analysis. There are several reasons why the topic is difficult and interesting. It is very large and almost unexplored. On the other hand, geometric problems often lead to limiting cases of known problems in analysis, sometimes there is even more than one approach, and the already existing theoretical studies are inadequate to solve them. Each problem has its own particular difficulties. Nevertheless there exist some standard methods which are useful and which we must know to apply them. One should not forget that our problems are motivated by geometry, and that a geometrical argument may simplify the problem under investigation. Examples of this kind are still too rare. This work is neither a systematic study of a mathematical field nor the presentation of a lot of theoretical knowledge. On the contrary, I do my best to limit the text to the essential knowledge. I define as few concepts as possible and give only basic theorems which are useful for our topic. But I hope that the reader will find this sufficient to solve other geometrical problems by analysis.

This volume is intended to allow mathematicians and physicists, especially analysts, to learn about nonlinear problems which arise in Riemannian Geometry. Analysis on Riemannian manifolds is a field currently undergoing great development. More and more, analysis proves to be a very powerful means for solving geometrical problems. Conversely, geometry may help us to solve certain problems in analysis. There are several reasons why the topic is difficult and interesting. It is very large and almost unexplored. On the other hand, geometric problems often lead to limiting cases of known problems in analysis, sometimes there is even more than one approach, and the already existing theoretical studies are inadequate to solve them. Each problem has its own particular difficulties. Nevertheless there exist some standard methods which are useful and which we must know to apply them. One should not forget that our problems are motivated by geometry, and that a geometrical argument may simplify the problem under investigation. Examples of this kind are still too rare. This work is neither a systematic study of a mathematical field nor the presentation of a lot of theoretical knowledge. On the contrary, I do my best to limit the text to the essential knowledge. I define as few concepts as possible and give only basic theorems which are useful for our topic. But I hope that the reader will find this sufficient to solve other geometrical problems by analysis.

Enhance your mobile device charging experience with the Full Circle Wireless Input and Output Power Bank. This high-capacity, 13400mAh power bank is designed to deliver reliable, efficient power to your devices on the go. Its innovative design features a large Qi-wireless charging area, ensuring you always hit that wireless sweet spot for optimal charging. This portable power bank is not just about wireless charging; it also offers multiple charging options with its integrated USB and USB-C ports. This means you can power up a wide range of devices, from smartphones and tablets to other Qi-enabled devices, providing you with the ultimate in charging flexibility. When it comes to recharging the power bank itself, you have the convenience of wireless charging. Simply place it on your preferred wireless charger and it will be fully powered in just 3.5 hours. With its durable, black exterior, this power bank is not only functional but also stylish, making it a perfect companion for your tech-savvy lifestyle. Choose the Full Circle Wireless Input and Output Power Bank for a seamless, efficient, and versatile charging solution.

What you have here is the Full Circle Wireless Input and Output Power Bank, a high-capacity 13400mAh power bank, presented in a vibrant red color. This device is not just your average power bank; it's a truly wireless solution that offers an expansive charging area, ensuring you always hit that wireless sweet spot for optimal charging efficiency. Equipped with Qi-wireless technology, this power bank is designed to wirelessly charge your smartphone, eliminating the need for tangled cords and providing a seamless charging experience. But the wireless capabilities don't stop there. When the power bank itself needs recharging, it can be powered up wirelessly using your preferred wireless charger. With a fast charging time of just 3.5 hours, this Full Circle Wireless Power Bank ensures you're never left waiting. It's the perfect companion for those who value convenience and efficiency in their tech accessories. Whether you're on the go, at home, or in the office, this power bank is ready to deliver reliable, wireless power whenever you need it.

From the moment you place your devices on the HyperCube Wireless Charging Station and Sleep Aid, you're engaging with a cutting-edge, multi-functional accessory that redefines convenience for your daily routine. This patent-pending, award-winning innovation is not just a wireless charger; it's a comprehensive sleep system designed to enhance your rest and rejuvenation.Crafted with a sleek, black finish, the HyperCube boasts a stylish and modern aesthetic that complements any home or office decor. Its compact and innovative design integrates seamlessly into your space, providing a clutter-free charging solution without sacrificing style.Equipped with the ability to charge up to three Qi-enabled devices simultaneously, the HyperCube ensures that your smartphones, tablets, and other compatible gadgets are powered up and ready to go. The added versatility of USB-C connectivity expands its compatibility, catering to a wide range of electronic devices and making it a universal charging hub.Beyond its charging capabilities, the HyperCube serves as a sophisticated sleep aid. It features a soothing wake-up light that simulates sunrise, gently preparing your body to wake up naturally. As an alarm clock, it offers a more pleasant start to your day, eliminating the jarring experience of traditional alarms.With over 13 smart features, the HyperCube is designed to improve your sleep quality. It provides a calming ambiance with customizable light settings, ensuring that your environment is perfectly tailored for a restful night's sleep.In summary, the HyperCube Wireless Charging Station and Sleep Aid is an essential addition for anyone looking to streamline their charging needs while enhancing their sleep experience. Its sleek design, modern technology, and innovative features make it a standout choice in the world of wireless charging solutions.

With its sleek and modern design, the HyperCube Wireless Charging Station and Sleep Aid, Glow in The Dark, is more than just a wireless charger. This innovative, high-tech device is a multi-functional powerhouse, offering a unique combination of features that go beyond simply charging your devices. As an award-winning, patent-pending product by Ampere, the HyperCube is equipped with over 13 smart features, transforming it from a mere charging station into a comprehensive lifestyle accessory. It's not just a wireless charger, but also a sleep aid, wake-up light, and alarm clock, all in one stylish package. Designed for the tech-savvy user, the HyperCube can simultaneously charge up to three Qi-enabled devices, including smartphones, tablets, and other compatible gadgets. Its compatibility extends to Qi integrated, USB-C, and universal devices, making it a versatile addition to any tech arsenal. One of its standout features is its glow-in-the-dark capability, ensuring you can easily locate your devices even in the dark. This feature, combined with its ability to aid sleep and wake you up gently with its built-in light, makes the HyperCube an essential bedside companion. Experience the convenience and functionality of the HyperCube Wireless Charging Station and Sleep Aid, Glow in The Dark, and redefine the way you charge your devices and manage your sleep.

It delivers unparalleled performance for the most demanding gamers and creative professionals. The GeForce RTX 3090 24GB XLR8 Gaming EPIC-X RGB Graphics Card, with its Triple Fan design, stands at the pinnacle of gaming power. This powerhouse GPU is equipped with NVIDIA's cutting-edge Ampere Streaming Multiprocessors, which are the foundation of the world's fastest and most efficient graphics processing unit. The innovative Ampere SM architecture provides twice the FP32 throughput and enhanced power efficiency compared to previous generations.Experience a new era of gaming with 2nd Generation RT Cores that offer double the throughput of the first generation, enabling concurrent real-time ray tracing and shading. This translates to hyper-realistic graphics and lighting effects in the most visually intensive games. The 3rd Generation Tensor Cores in this graphics card are engineered to support up to 8K resolution and bring up to twice the throughput with structural sparsity and advanced AI algorithms like DLSS. These improvements result in a significant elevation in game performance and groundbreaking AI capabilities.The GeForce RTX 3090 is not just a GPU; it's a Big Ferocious GPU (BFGPU) with TITAN class performance. Its formidable power is driven by NVIDIA's 2nd gen RTX architecture, which amplifies ray tracing and AI performance through the roof with refined RT Cores, Tensor Cores, and new streaming multiprocessors. To complement this, the card is fitted with a colossal 24 GB of G6X memory, ensuring the smoothest and most immersive gaming experience possible.The card's Triple Fan setup and EPIC-X RGB lighting not only keep your system cool during intense gaming sessions but also add a touch of customizable aesthetics to your rig. For gamers and creators seeking a reliable, efficient, and high-performance graphics solution, the GeForce RTX 3090 24GB XLR8 Gaming EPIC-X RGB Graphics Card is the ultimate choice. It's designed to push the boundaries of gaming, allowing you to immerse yourself in rich, detailed virtual worlds with fluidity and ease that was once unimaginable.

You can elevate your gaming experience to new heights with the GeForce RTX 3060 Ti 8GB UPRISING Gaming Graphics Card. This high-performance, dual-fan graphics card is powered by NVIDIA's 2nd generation RTX architecture, Ampere, designed to deliver the ultimate gaming performance. The GeForce RTX 3060 Ti is engineered with enhanced Ray Tracing Cores and Tensor Cores, coupled with new streaming multiprocessors, to provide you with an unparalleled gaming experience. The high-speed G6 memory ensures smooth and seamless graphics rendering, enabling you to enjoy high-resolution textures and detailed graphics without any lag or slowdown.The advanced NVIDIA Ampere architecture features 2nd generation Ray Tracing Cores and 3rd generation Tensor Cores, offering greater throughput and improved power efficiency. These are the building blocks for the world's fastest, most efficient GPU, designed for both gamers and creators. The GeForce RTX 3060 Ti is not just about power and performance. It also boasts the EPIC-X RGB design, which combines brilliant RGB aesthetics with ultimate performance. This means your system won't just outperform the competition, it will look good while doing so.Experience 2X the throughput of 1st gen RT Cores with the 2nd Generation RT Cores, plus concurrent RT and shading for a whole new level of ray tracing performance. The 3rd Generation Tensor Cores offer up to 2X the throughput with structural sparsity and advanced AI algorithms such as DLSS. These cores deliver a massive boost in game performance and all-new AI capabilities. In summary, the GeForce RTX 3060 Ti 8GB UPRISING Gaming Graphics Card is a powerful, efficient, and reliable choice for gamers seeking advanced, high-performance graphics.

Make your gaming and creative experiences more immersive and powerful with the GeForce RTX 3070 8GB Graphics Card, Dual Fan. This high-performance graphics card is powered by NVIDIA's 2nd gen RTX architecture, Ampere, which is renowned for its speed and efficiency. The GeForce RTX 3070 is built with enhanced RT Cores and Tensor Cores, along with new streaming multiprocessors, and high-speed G6 memory. This robust combination ensures you have the power to tackle the most demanding games and graphics-intensive applications with ease. The card's NVIDIA Ampere Streaming Multiprocessors are the foundation for the world's fastest, most efficient GPU. These multiprocessors bring 2X the FP32 throughput and improved power efficiency, making your gaming sessions smoother and more realistic. Experience a new level of ray tracing performance with the 2nd Generation RT Cores. They provide 2X the throughput of the 1st gen RT Cores and allow for concurrent RT and shading. This results in more lifelike lighting and shadowing effects in your games, enhancing your overall gaming experience. The 3rd Generation Tensor Cores offer up to 2X the throughput with structural sparsity and advanced AI algorithms such as DLSS. Now supporting up to 8K resolution, these cores deliver a significant boost in game performance and introduce new AI capabilities. Whether you're a gamer seeking the ultimate performance or a creator needing powerful AI acceleration, the GeForce RTX 3070 8GB Graphics Card, Dual Fan is designed to meet your high-performance needs. This graphics card is not just about power; it's about delivering a seamless, efficient, and immersive experience that takes your gaming and creativity to new heights.