资讯

The magnet moving near the copper causes a force that ... Water is also diamagnetic so things with lots of water in them can be pushed around using your neodymium magnet. Try seeing what sorts ...
You don't see too many objects made of pure iron but you do see lots of different things made of steel, which has iron in it. Try the activity to see which metal objects are magnetic. Then try another ...
One of the things they're drawn to is carbon dioxide ... That's awesome. And just moving around or wearing colors that contrast the background will draw more mosquitoes to you too.