Q1. In page 87 there are claims that magnets can heal people. Do you think this is possible?
Q2. If you wanted a motor to go without the magenet's pole switching, what would you do?
Q3. If you did the experiment on page 98 and the compass needle turned 45 degrees, can you guess how strong the magnetic force you made is?
To be answered by 1/5 after reading chap3.1~3.4(76~111p)
A1. Well, I think yes, it's possible. If you look at claim 'e', you can see that not only people with real magnets in their heels reported improvements, but also the same amount of the people with fake magnets reported improvements. But, still, I think that thinking magnets can heal people is not just because of the plecebo effect. I heard that magnet's north polar is like the negative charge, so it can help the circulation of the blood. And, the magnetic field is distributed in people's body, too. Most of the activity of life is connected to the electrical phenomenon, so many scientists guess that magnets can be used to heal certain sickness such as cancer, dementia, stroke etc. So I think that magnet can heal people in someway.
A2. Well, all motors have main parts. Magnet, voltage source, a shaft and an eletromagnet. I think the most important partr of the motor is noneother than the magnet and the elctromagnet. When current from the voltage source flows through the coil, the poles of the magnet interact with the poles of the electromagnet which causes the motor to turn and on and on. Sorry, but I have no idea how to make a motor go without the magnet's pole switching. I think that motor can't work without an electromagnet, but because of the electromagnet, the motor work, switching the magnet's pole.
A3. Well, I think it depends of how much the strong the batery is or how long the wire is. I don't know how to measure the magnetic force, but since the needle of the compass turned 45 degrees, and if we say that the limit of the magnetic force we can made is 1, then the magnetic force that I made will be 1/8? I don't know the answer exactly, sorry.