The Marconi system made a radio link between systems, which was the size of a building. Eventually, people put up a radio system at a high point in the city, then those with the right kind of radio could talk to the high point.

In essence, there was only one cell, even though it wasn't ce...

Prioritize your list of possible goals using and expected value (EV) calculation. Expected Value = Resources Required x Return on Investment x Probability of Success

Take the list of everything you could potentially work on over the next 90 days and then rank them by these criteria.

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You don’t know what you’ve got till its gone. 

Consider the many ways in which important, positive events in your life—such as a job opportunity or educational achievement—could have never taken place, and then reflecting on what your life would be like without them.