The Internet is one of the most energy‑efficient means of communication.
What did the inventor of email write in the first ever email message? (Hint: it's nothing terribly profound.)
Computers are great tools, but they can also be mystifying. Sometimes a program will just stop working correctly for no apparent reason. It could just be a random glitch that can be solved by restarting the machine, but sometimes the solution is not so simple, especially if at the root of the problem lurks a computer virus. Learn more on this Moment of Science.