Dr Karami's "non-linear harvester", by contrast, still works at heart rates of 20 to 600 beats per minute.It does this using a combination of a piezoelectric material and a magnet, arranged so that the magnetic field amplifies the piezoelectric material's response to the vibrations.
Looking at a cloud-filled valley was less interesting to me (or at least, no more interesting to me) than looking at my father drag his thumb along the magnetic stripe of his credit card to wipe it clean.
Remember, he didn't create Pop Idol or American Idol: he was hired as a judge on them, and against the odds proved a magnetic TV presence.
Moreover, it is a transformational book because it portrays Nigeria as a place that is mythical, marvellous, chaotic and slightly dangerous, yet also wildly fascinating, with a magnetic power to attract its brightest emigrés back to its shores.
"I come from a magnetic field of Catholicism," he says.
But as well as the surf, the town also has other magnetic draws for tourists: it is a place that offers recalibration and an unravelling, for people who want to cut a break from the grind of the city, or travellers who want a slice of the carefree beach lifestyle.
But he is magnetic to watch as he delivers his scheming monologues straight to camera.
Ngozi Adichie is a new, powerful and incredibly talented voice; her novel Americanah is the expression of a different African tale, of a continent and its people that have many more magnetic stories to tell, as well as critiques to raise about the so-called enlightened West.
Scientists therefore have to resort to a bizarre toolkit of indirect methods such as X-ray crystallography, nuclear magnetic resonance or cryo-electron microscopy to provide the data that allow three-dimensional molecular models to be reconstructed in the computer.
The pill would contain magnetic particles approximately 10,000 times smaller than the width of a human hair.
"They course through your body and because the cores of these particles are magnetic, you can call them somewhere and ask them what they saw".
