The largest ship anyone has realistically conceived is known as the freedom ship. It would have been the most expensive ship ever built and would have made a cruise liner look like a canoe. So what happened, and why did it end up not being a good idea?

Is your phone ringing off the hook with robocalls? I know how annoying that is — and I can help you stop them with my eBook, "Complete Guide to Robocalls."

Let's face it, hackers and criminals are out to get you. These days, they even have ways of infecting your iPhone and iPad. Have your devices been hit by an attack? Here are some surefire signs that you're a victim. Plus, I'll give you tips to get rid of viruses and bugs from your iPhone and iPad.

What is something that the military, bats and doctors all have in common? They all use sounds to see. Specifically, they use the echo from sound bouncing off objects to visualize their surroundings. So how does this technology work and what other applications may it have?

We have all heard the Greek mythology tale of King Midas. Everything he touched would turn to gold. So, what would happen if he transformed Earth itself into gold? Would we be able to survive on a planet made entirely of gold? The answer is pretty complicated.

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