All answers by Sally Riordan published at PhysLink.com up to date are listed here: At what point does a black hole stop sucking in mass and explode creating a new time/space continuum? Is there a day and night on the moon? What are Eigen Values? What is meant by background radiation? How are quasars related to black holes? Why does the night-sky in spite of the presence of countless stars appear dark? Names of stars usually start with letters NC and are followed by numbers. What does NC stand for and why are they named as such? How did thermal blackbody radiation spectrum not fit classical physics and what was done about it? What is nanotechnology and why is it such a buzz in the computer industry? I heard that the speed of light is the same to any observer, no matter how fast he moves, and that the faster you move, speed of light is still the same relative to you. Is this true, and why? How astronomers know that our galaxy is not centre of universe? How hot is it at the center of the Earth? In the EPR paradox by Einstein, is there any information transfer in the process? Is the information different from what we have in a message? How did Max Planck determine the planck length? If you lit a flame in an oxygen atmosphere in space, what direction would the flame burn in? Why don't the proton and the electron in a hydrogen atom collapse? What is the significance of uncertainty principle in the real world?
