I am trying to get a close look at magnetic nanoparticles under a relatively strong microscope (600 times plus). I am trying to observe their behaviour when an alternating magnetic field is applied.
The problem is the alternating magnetic field heats up all metal in its surroundings...
When a 90 degree pulse is followed by a 180 degree pulse, a spin echo may be seen at a time tau later...i understand this in general terms, as the direction of precessional drift has been flipped about its own axis by the 180 pulse, which means the spins catch up and rephase in an echo etc...
How would you rate the following in terms of water content:
muscle, liver, fat, heart, cartilage, bone marrow
and where could i find a table of comparison...?
Its an experiment on pulsed nuclear magnetic resonance spectroscopy and the factor that increases (roughly linearly for some reason) with muscle, liver...marrow is the spin spin relaxation time T2
so I placed small samples of each type of tissue, scanned them, found an average relaxation time...
I am in the middle of a physics experiment that has recently crossed over into biology...the details are not important, but what i found was that a certain property changed in this order as the following substances were scanned:
1. muscle
2. liver
3. fat
4. heart
5. cartilage
6. bone...
According to Wikipedia, the shells of the Paris Gun fired over 120 km landed "1,343 meters (4,406 ft) to the right of where it would have hit if there were no Coriolis effect"...
Is it then correct to say that it would have deviated by 134.3 metres over 12 km, and 13.43 metres over 1.2 km etc...