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.
1 Tbsp liquid pectin = 2 tsp powdered pectin. I found this at homesteadingtoday.com: How To Convert Powdered Pectin To Liquid Pectin. When you cannot find liquid pectin it is useful to know how to turn the powdered form into liquid. Mix 1 package powdered pectin in 1/2 cup water and boil for 1 minute. Pour into a measuring cup and add enough water to make 1 cup.