The problem of defining exactly what is meant by the signal velocity, which cropped up as long ago as 1907, has not been solved.

The problem of defining exactly what is meant by the signal velocity, which cropped up as long ago as 1907, has not been solved.

If you don't understand something, break it apart; reduce it to its components. Since they are simpler than the whole,you have a much better chance of understanding them; and when you have succeeded in doing that, put the whole thing back together again.

The solution of the Monty Hall problem hinges on the concept of information, and more specifically, on the relationship between added information and probability.

Information gently but relentlessly drizzles down on us in an invisible, impalpable electric rain.

To put it one way, a collection of Shakespeare's plays is richer than a phone book that uses the same number of letters; to put it another, the essence of information lies in the relationships among bits, not their sheer number.

Science has taught us that what we see and touch is not what is really there.