Newton's Theory of Gravity states that every object in the universe pulls on every other object. Every object feels this force, so it is a universal force. The force is always attractive; it is always a pull, never a push. Picture the force of gravity as the tension in an imaginary rope between two objects.
The whole point of a USB drive is to store lots of data in a small space, so think about what kinds of files you'll want to house on your flash drive. Movies and music take quite a bit of space, so if you're carrying your whole entertainment library with you, you'll want a big thumb drive â at least 16GB.
Image size and resolution. Your custom thumbnail image should be as large as possible, as the image will also be used as the preview image in the embedded player. We recommend your custom thumbnails: Have a resolution of 1280x720 (with a minimum width of 640 pixels). Be uploaded in image formats such as .JPG, .GIF, .BMP or .PNG. Remain under the 2 MB limit. Try to use a 16:9 aspect ratio as it's the most used in YouTube players and previews.