The Carina Nebula: star birth in the extreme. Two telescopes, the Hubble and the Cerro Tololo Inter-American Observatory in Chile were used to make this image. Credit: NASA, ESA, N. Smith [University of California, Berkeley], The Hubble Heritage Team [STScI/AURA], N. Smith [University of California, Berkeley] and NOAO/AURA/NSF.
Water Flow from a Spouting Cylinder
A spouting cylinder provides a visual demonstration of incompressible fluid pressure as a function of depth. Since water is nearly incompressible this is an experiment children can do themselves.