In 1978 Alan Guth heard about the “flatness problem” of the universe while attending a talk on cosmology—a field he was only marginally curious about. A year later, Guth found a solution.
Particle physics has chosen low-temperature superconducting technology for the International Linear Collider. What is "cold," and why have particle physicists lowered the temperature on a new accelerator?
How many CDs are in the box? "100," a child guessed. "1000," said another. The answer was 2000, the equivalent of just 0.1 percent of the database capabilities at SLAC. "Imagine 2 million CDs in your bedroom."