Itay is a PhD student in the field of physics at the Weizmann institute of science. He studies Casimir forces: an effect due to the quantum nature of elementary forces particularly electromagnetism. Casimir forces are responsible for most of the stickiness in nature, like the stiction of paint to walls. The source of the Casimir force also acts in great distances and may drive the expansion of the universe. Current theories describe Casimir forces between objects, like the paint and the wall, but fail to describe them inside objects, e.g. inside the paint that they may blow apart. Itay is extending the current theories of the Casimir force so that we may predict its effect inside media, this may affect the Casimir contribution to the expansion of the universe.