Abstract: Schlieren imaging is an optical technique to observe the flow of transparent media, such as air or water, without any particle seeding. However, conventional frame-based techniques require ...

From patterns inspired by antique paintings to prints with French cottage vibes, our old-world wallpaper ideas can work in ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...