Got it wrong? No worries, you have 19 other riddles to test out. When you think you’ve got the right answer, click the link at the bottom of each riddle to find the solution. So go grab a pencil and a piece of scratch paper and prepare to rip your hair out (and we really do mean that in the best way possible). Let’s work through the toughies together. With difficulties ranging from easy, to moderate, to hard, there’s something here for everyone. If it is, this will not work.Who says mind-bending logic puzzles are just for kids? We’ve come up with 20 brand-new riddles for adults to test your critical thinking, mathematics, and logic skills. However, I think 20 - 30 minutes is about a fair amount of time to wait before telling them about the magnet triggered reed switch on the side of the box.Īlso, when triggering the reed switch, make sure the key is not inserted in lock and turned. Remember to be a good southern neighbor and eventually tell them how to turn it off. I can only imagine what must have been running through his mind while he made that decision. It took Mike in Vancouver only a few minutes to insert and turn the key. I am not really sure why they are so susceptible to inserting and turning the key. For all I know, it could be something entirely different in the national character that causes this phenomenon. Or - perhaps - since everyone in the world loves Canadians, they just assume no one will send them a sealed box with a bell that will not turn off. I don't know if this is on account of the long winters fostering a strong inner life and innate curiosity, or because socialized medicine makes them fearless. This is the mounting terminal not connected to the frame.Ĭover all exposed electrical connections with shrink tube.īesides the fact that it is simply good to distance yourself from the person who engages the box, I find that Canadians are really bad at following the directions written upon the label. Next, wire the red wire from the battery holder to the center pin on the relay.įinally, wire the red wire from the battery holder to the coil connection on the bell. Then, when you engage the reed switch, it flips the polarity and latches it open and turns off the bell.īefore you are done, you need to wire the bell to the D battery holder and the relay.įirst, wire together the black wire from the battery holder, to the frame of the bell. So, when you turn the key, it latches it closed and keeps the bell ringing. This - in essence - flips the polarity one way or another, and latches the relay open or closed. By engaging one of the switches, you are introducing a positive voltage. In essence what you have just done is create a situation in which ground is always connected in the circuit. Connect these two wires to the black wire from the 9V battery clip. Connect these two wires to the red wire from the 9V battery clip.Īttach black wires to the two normally closed (NC) connections on both switches. If you would like an alternate suggestion for a supplier of any of the parts, please let me know.Īttach a red wire to the common connections for the reed switch and the key switch.Īttach another red wire to the normally open (NO) connections on both switches. I reinvest this money into materials and tools for future projects. However, I earn a small commission if you click on any of those links and buy anything. This does not change the price of any of the items for sale. Please note that some of the links on this page contain Amazon affiliate links. The "DO NOT INSERT AND TURN KEY" shape should be etched and cut from 1/8" acrylic. **The laser cut template should be etched (when appropriate) and cut. (x1) Wood stain and 220 sandpaper (optional) (x1) Laser cut 1/4"-thick plywood box template**
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