Nima Arkani-Hamed , a theoretical physicist , predicts large extra dimensions . His revolutionary ideas about the way the universe works will finally be put to the test this year at Switzerland 's Large Hadron Collider , which will be the world 's most powerful particle accelerator . Comment: The universe is expanding at an accelerating rate due to the expansion of space and time itself. LHC results may change ideas of spacetime for the first time since Einstein . String theory postulates that the building blocks of matter are vibrating strings .
Nima Arkani-Hamed , a theoretical physicist , predicts large extra dimensions . Comment: The universe is expanding at an accelerating rate due to the expansion of space and time itself. LHC results may change ideas of spacetime for the first time since Einstein . String theory postulates that the building blocks of matter are vibrating strings .