Guilloché is a decorative technique in which a very precise, intricate and repetitive pattern is mechanically engraved. These patterns are found in almost all currency notes (dollar bills have that) and also in many premium wrist watches.
This is free ebook.
The new ZenBook S13 is built to combine timeless elegance with state-of-the-art performance, its breathtakingly beautiful 13.9-inch NanoEdge display has the world’s slimmest bezels and largest screen-to-body ratio. Powered by the latest Intel® Core™ processors, ZenBook S13 is also the world’s slimmest laptop with discrete NVIDIA® MX150 graphics.
EarTrumpet is a powerful volume control app for Windows that allows users to visualize audio with multi-channel aware peaking, move apps between playback devices, and more.
"EarTrumpet is the Windows 10 volume control app Microsoft should have created" - The Verge