Recent developments in LEDs permit them to be used in environmental and task lighting. LEDs have many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching. Light-emitting diodes are now used in applications as diverse as aviation lighting, automotive headlamps, advertising, general lighting, traffic signals, camera flashes and lighted wallpaper. As of 2015[update], LEDs powerful enough for room lighting remain somewhat more expensive, and require more precise current and heat management, than compact fluorescent lamp sources of comparable output.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is a popular use for LED lighting?
Ah, so.. traffic signals

Scientific and technological research activities in Portugal are mainly conducted within a network of R&D units belonging to public universities and state-managed autonomous research institutions like the INETI Instituto Nacional de Engenharia, Tecnologia e Inovacao and the INRB Instituto Nacional dos Recursos Biologicos. The funding and management of this research system is mainly conducted under the authority of the Ministry of Science, Technology and Higher Education (MCTES) itself and the MCTES's Fundacao para a Ciencia e Tecnologia (FCT). The largest R&D units of the public universities by volume of research grants and peer-reviewed publications, include biosciences research institutions like the Instituto de Medicina Molecular, the Centre for Neuroscience and Cell Biology, the IPATIMUP, the Instituto de Biologia Molecular e Celular and the Abel Salazar Biomedical Sciences Institute.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): By which ministry is authority granted for funding and managing Portugal's research system?
Ah, so.. Ministry of Science, Technology and Higher Education (MCTES)

In 1901 the accession of Edward VII saw new life breathed into the palace. The new King and his wife Queen Alexandra had always been at the forefront of London high society, and their friends, known as "the Marlborough House Set", were considered to be the most eminent and fashionable of the age. Buckingham Palacethe Ballroom, Grand Entrance, Marble Hall, Grand Staircase, vestibules and galleries redecorated in the Belle epoque cream and gold colour scheme they retain todayonce again became a setting for entertaining on a majestic scale but leaving some to feel King Edward's heavy redecorations were at odds with Nash's original work.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which king commissioned minor redecoration in the Belle Epoque cream and silver color scheme?
Ah, so..
unanswerable