We added a method of winding and unwinding the string, which we did by wrapping the string around a skewer. This allowed us to slowly shorten the length of the string so we could find exactly how far the paperclip could be under the magnet. We also found that this made our butterfly ...
There are different ways to control mosquitoes. You can stay indoors (but what fun is that?). You can use DEET, but it is a smelly bother to keep applying it. You can try using things like citronella candles or torches to confuse the mosquito's sensors. What if, instead, you want...
The strength of a magnet in an MRI system is rated using a unit of measure known as a tesla. Another unit of measure commonly used with magnets is the gauss (1 tesla = 10,000 gauss). The magnets in use today in MRI systems create a magnetic field of 1.5-tesla to 7.0-tesla, or ...
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as shown in the diagram at the right. If you think of the world this way, then you can see that the normal "opposites attract" rule of magnets would cause the north end of the compass needle to point toward the south end of the buried bar magnet. So the compass points toward the No...
It would be extremely easy to construct a tiny circus filled with props of every kind and pretend that fleas are interacting with those props, when in fact the fleas are not there at all. That's exactly what some performers do, using electronics, magnets and other tools that stand in for...
Originally Posted by camoy No bolts for the setup that doesn't move just 3M outdoor tape. The user name is Tim H. for the plates. Thanks for the name, found the guy and saw pictures of the plates. On the cortex thread i read the initial discussion whether to use magne...
Magnets on the skis, coupled with an electromagnetic pulse, give the pod its initial shove. That shove, Musk told reporters, would be similar to what a passenger experiences onboard an airplane at takeoff. "Then once you're there," Musk says, "there's no sense of speed" [sources: ...
14. A wooden skewer (longer than your box is wide)OReight neodymium magnets (I'm using rectangular ones 2x5x10mm) Step 1: Prep the Housing The first thing you'll want to do is remove the plastic lining on the top of your tissue box. This will give us a cleaner looking rainbow. The...
Then I glued them onto the back and bottom of the ‘desk’, and finished the deed by putting a lonnnng brad nail or 5 up through the bottom of each. Finally, I cut the actual desk part to perfectly fit the same dimensions as the outside of the frame of the desk! As usual, I ...