Riddle Me This: King Arthur’s Coin Game
What strategy can you come up with the guarantee that you win? Riddle me this ...
What strategy can you come up with the guarantee that you win? Riddle me this ...
Early on, engineers debated the very nature of the Panama Canal. They finally abandoned ideas about a sea-level canal (like the Suez) when engineer John Frank Stevens instead insisted upon a different option—a locks canal.
How quickly can Alan, Bob, Cal, and Dan all get across the bridge safely? Riddle me this ...
Concepts like the “frictionless surface” enabled Newton to lay the groundwork for modern physics. He may never have imagined that his ideal could actually be achieved, but now, thanks to a group of tribologists (scientists who study interacting surfaces in relative motion), the prospect of eliminating friction between two interacting surfaces has come to fruition.
Can you determine which way the disk is spinning? Riddle me this ...
Traditionally, materials have been bonded together by fasteners such as nails, screws or thread, which are appropriate for metals, wood, fabrics and plastics. For many plastics, glues have been used. Glue forms a chemical bond between itself and the surface of the plastic material to be conjoined.
You have been feeling very sick lately and decide to visit your doctor. Riddle me this ...
The name “Tesla” is most often associated with the electric-powered car manufactured by Telsa, Inc., named after inventor Nikola Tesla. Because Thomas Edison and other inventors received more notoriety and have been celebrated for inventions and concepts pioneered by Nikola Tesla, few people know how truly brilliant and pioneering Tesla was ...
The Egyptian pyramids of Giza are some of the most impressive manmade structures in the history of our planet. It’s estimated that they were built over 4,500 years ago with over two million stones over a period of 20 to 30 years ...
Can you open the lock using these clues?