esti f (plural estis) 1  Alternative form of. â 2 estiâ in le TrÃ©sor de la langue franÃ§aise informatisÃ© (The Digitized Treasury of the French Language).
Frame dragging is a theory which says that space is elastic, and particles in it will exchange energy with it. In the scientific world, elastic means that when you apply a certain amount of force to an object (which will cause it to bend) and then remove the force, the object will return to its original shape and energy state.
Bootstrap is an open-source Javascript framework developed by the team at Twitter. It is a combination of HTML, CSS, and Javascript code designed to help build user interface components. Bootstrap was also programmed to support both HTML5 and CSS3. Important! Bootstrap is a CSS and Javascript framework that is used within your HTML. Bootstrap provides more advanced functionality to your web site. Generally, if you are not a developer you do not need to worry about bootstrap.