The Cost Of Precaution

The graph above shows the relative production of these major US row crops comparing the years 1993-1995 (just prior to the introduction of biotechnology enhanced crops) and 2008-10 (the most recent available data which covers a a span which comes 12-15 years after biotech.  Soybean production has expanded 47% in this time-frame while corn is up 58% (far more than the quantity now being diverted for biofuel).  Both of those crops are predominantly planted to “GMO” varieties, while the various segments of the wheat crop remain non-GMO.  Until 2004 it looked as if North American growers would also get

Why popcorn pops

Popped corn Photo: D3 San Francisco, flickr (click to see photo in original context Popping corn, or anything else, all comes down to pressure. Pop-corn has a particularly impermeable pericarp (the corn kernel’s shell), so as it is heated, the water inside the kernel vaporizes into steam and the starch turns into something close to a liquid. Eventually the heat creates enough pressure to split the pericarp and the starch of the corn kernel bursts out, resolidifying into the distinctive shape of popcorn. If there is even the smallest hole in the pericarp, the steam can escape from the