A concave meniscus, which is what you normally will see, occurs when the molecules of the liquid are attracted to those of the container. This occurs with water and a glass tube. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass.
Free French Forces. The Free French Forces (French: Forces franÃ§aises libres) were individuals or military units who joined Free France (la France libre), the resistance organisation founded by Charles de Gaulle in 1940 in London to continue the struggle against the Axis powers.
Considered by many to be world's first air force, the French Air Service (AÃ©ronautique Militaire) was established on 22 October 1910 under the command of General Roques. France led the world in the design of early aircraft and by 1914 the French Air Service fielded 132 machines divided amongst 21 units (escadrilles).