There's shallow water where beginners can ride their first meters, and perfect flat water for kiters who want to practice tricks or just cruise and enjoy the beautiful surroundings. (lapointcamps.com)
You always have the most perfect flat lays and I can not seem to master it. (morepiecesofme.com)
The best way to master metamaterials for visible and near - infrared light, however, may be to first perfect flat, two - dimensional «metasurfaces,» according to researchers such as Federico Capasso of Harvard University. (scientificamerican.com)