Theories about the nature of the universe are questioned. Heinrich Olbers is cited as the first person to question why, in a stable infinite universe with an even distribution of stars, the night sky is dark. The premise of the question is that if there is no heat sink for all of the energy, then all of the objects in the universe must rise to the temperature of the stars. The site discusses ideas, such as the Big Bang Theory and Einstein's Relativity Theory, in terms of how they align with that basic premise. Visitors to the site learn about the physics involved in heat transfer, heat pumps, and red shift.
Interactive applets allow the visitors to simulate the discussed physics concepts.
One applet demonstrates a model of heat transfer in space that offers a mirrored room as an analogy for infinity.