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NOT THERE YET. "An ideal `invisibility cloak' has not been designed yet and, actually, the possibility of producing such a system raises serious concerns." (2015). https://lnkd.in/enxaHbT View in LinkedIn

IMPLEMENTATION. "Advances in the studies of metamaterials have pushed the development of invisibility cloaks, which suppress scattering by objects within certain frequency ranges. During recent years, there has been a transition from a purely theoretical consideration of the cloaking effect to its practical implementation." (2015). https://lnkd.in/enxaHbT View in LinkedIn

"THE ROCHESTER CLOAK can be scaled up as large as the size of the lenses, allowing fairly large objects to be cloaked. And, unlike some other devices, it's broadband so it works for the whole visible spectrum of light, rather than only for specific frequencies." (2014). https://lnkd.in/et5Tzxh View in LinkedIn

DEFYING NAYSAYERS. "This is the first device that we know of that can do three-dimensional, continuously multidirectional cloaking, which works for transmitting rays in the visible spectrum." https://lnkd.in/et5Tzxh View in LinkedIn

INVISIBLE MERCEDES. "The camera shoots video on the passenger side of the car and the video is displayed in real time on the driver side of the automobile...works on the same principles of the blue screen used by TV weather forecasters and Hollywood filmmakers." (2012). Not quite metamaterials. https://lnkd.in/ecu-eS7 View in LinkedIn

TIP OF THE FUNDING ICEBERG. "The U.S. Defense Advanced Research Projects Agency (DARPA) -- the research wing of the Pentagon -- has received the green light for $15 million in funding over three years to investigate urban obfuscants. This ambitious project is an attempt to create a protective shield for use by soldiers in urban combat situations." Urban obfuscants, DARPA talk. https://lnkd.in/eQxdyWG View in LinkedIn

ULTRA-SMART SCIENCE. There are so many truly gifted and imaginative scientists applying their trade of curiosity and deduction that it makes for truly thrilling living. Not a week goes by without a new insight, albeit often badly dressed in obscure jargon, but nevertheless, a gift to culture and humanity. View in LinkedIn

EIGHT YEARS OLD. "Arguably the most exciting application of metamaterials to date is the possibility of cloaking objects, or suppressing their detectability to incoming waves of different form. This concept has been experimentally verified at specific frequencies of operation, but we are still far from achieving broadband invisibility in the optical range for large-scale objects." (2014). https://lnkd.in/ejq5Tyt View in LinkedIn

"BREAKING THE DIFFRACTION LIMIT has opened new vistas for exploitation of light on the nanoscale. To some extent theory has raced ahead of experiment, but the challenges are being met and new technology developed. It is an exciting time of nanoscale light." https://lnkd.in/eVf6BPv View in LinkedIn

SIZE MATTERS. "All-angle invisibility for human-scale bodies in the visible is extremely challenging to achieve, even if the phase requirement is dropped. This is because human-scale objects are considerably larger than the wavelength of light, and visible frequencies correspond to quite a broadband window to cover." https://lnkd.in/eV48D4C View in LinkedIn