The history of the airplane shows it was invented by Orville (1871-1948) and Wilbur (1867-1912) Wright. They got the patent 9 months prior to their flight in December 1903. The Early History of Flight. There are pictures showing Orville Wright on the plane flying.
Naturally occurring pectin is a soluble fiber found in many fruits and plants. Pectin is a great example of a natural polymer, and is composed of pectic acid and pectinic acid molecules. It is basically a compound with a bunch of sugars and acids attached to it. (I always find the chemical structure fun!) Every plant contains some amount, sometimes just a very small amount, of pectin.
Made strawberry jam with pectin (a brand other than Certo), however, my mother who is a jam junkie, told me to make the jam without the pectin. Her reason is that jam made with this pectin product typically is not good for more than 1 year or so, where as jam made with just fruit, sugar and lemon juice last much longer.umbug. I've been making jam for over 30 years. I use pectin-usually Certo, because it's the brand most widely available here. The advantage to using pectin, in my opinion, is that you can make jam with a much shorter cooking time, which produces a product that tastes fresher.